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ECS GeForce 9800 GTX+ Hydra, Liquid Cooled SLI
Date: Oct 24, 2008
Author: Robert Maloney


When we think about ECS and their product lines, we typically expect a budget-minded approach.  Solid products at reasonable prices that don't exactly wow the consumer, but don't hit them hard in the wallet either.  The ECS X48T-A motherboard that we looked at a few weeks ago was one of the first steps by ECS to change that image, although a few missteps with the construction as well as some overclocking issues didn't overly sway us to their new way of thinking. 

Thus, we were a bit surprised when we first heard about the ECS GeForce 9800 GTX+ Hydra - a twin pack of high-end graphics cards consisting of two GeForce 9800 GTX+ cards combined with liquid-cooling.  The 9800 GTX+ is the upper level of the 9xxx series, with the plus denoting an extra bump in the clock speeds to get better peformance in the most demanding applications.  Two of these used in an SLI configuration would be a gamer's dream, although the noise and heat output could be an issue.  ECS has solved these problems by providing the customized liquid cooling unit from ThermalTake using the BigWater 760is.  ECS hopes to make a big splash here with the Hydra pack, possibly the first of its kind to include all three components in one box.  First, we'll take a look at the specs of the GeForce 9800 GTX+ and then move onto a closer look at ECS' take on it and finally the BigWater 760is.


NVIDIA GeForce 9800 GTX+
Features & Specifications
GPU Engine Specs:

Processor Cores 128
Graphics Clock (MHz) 738 MHz
Processor Clock (MHz) 1836 MHz
Texture Fill Rate (billion/sec) 47.2 

Memory Specs:
Memory Clock (MHz) 1100 MHz
Standard Memory Config 512  MB
Memory Interface Width 256-bit GDDR3 
Memory Bandwidth (GB/sec) 70.4 
Feature Support:
NVIDIA SLI®-ready* 2-Way  / 3-Way
NVIDIA PureVideo® Technology* HD
NVIDIA PhysX™-ready*
NVIDIA CUDA™ Technology
HybridPower™ Technology*
GeForce Boost  
Microsoft DirectX 10 
OpenGL 2.1 
Bus Support PCI-E 2.0 x16 
Certified for Windows Vista
Display Support:
Maximum Digital Resolution 2560x1600 
Maximum VGA Resolution 2048x1536 
Standard Display Connectors Dual Link DVI
Multi Monitor
HDMI* Via adapter
Audio Input for HDMI S/PDIF 
Standard Graphics Card Dimensions:
Height 4.376 inches 
Length 10.5 inches 
Width Dual-slot 
Thermal and Power Specs:
Maximum GPU Tempurature (in C) 105  C
Maximum Graphics Card Power (W) 141  W
Minimum System Power Requirement (W) 450  W
Supplementary Power Connectors 6-pin x2 

Note that we included the basic specifications of the GeForce 9800 GTX+ above because ECS hasn't changed anything here.  In our eyes, we see that as a bit of a let-down.  With the availability of more advanced cooling methods, ECS could have really put out a killer product spec with the Hydra. Combining the power of running two of these cards in SLI and having a faster clocked product that's running along significantly cooler and quieter than the rest, would have put ECS and the Hydra more prominently on the map.  Of course, we can always set out on our own to overclock these cards, and we do later on in this review.  However, we'd like to see ECS as well as other manufacturers put their own engineering skills to the test as well. 
ECS N9800GTX+512MX


It's almost hard to believe the size of the ECS Hydra box, which almost as big as a small ATX case.  The front is adorned with a huge metallic Hydra logo, although there is much more emphasis on the graphics than the product details.  For example, we feel that the SLI aspect of the setup isn't promoted well enough - something that should be prominently displayed to a would-be buyer.  A sticker does mention that a full retail version of the game Rainbow Six: Vegas 2 is included. 


Inside the box is an oversized Quick Installation Guide that covers the basics of the entire setup, from installing the cards themselves to operating the water-cooling kit.  The manual is generic and outdated with 6800 GT screens taken from a Windows XP box, and doesn't cover anything specific regarding the setup of the water-cooling kit.  This is relegated to the Quick Installation Guide, but we feel that a kit like this deserves better.  Thermaltake's online manual does the job for the most part, but is more geared towards CPU blocks rather than graphics and the onus is on ECS to make the user feel more comfortable and knowledgeable about their installation, especially when water and electricity are involved.

Under the foam cover we got our first glance at the two large 9800GTX+ cards and the ThermalTake BigWater 760is, as well as four MOLEX to 6-pin PCI-E power adapters, two DVI-to-VGA adapters, two S/PDIF cables, two DVI-to-HDMI adapters, an SLI bridge, and finally a bottle of coolant with a squeeze bottle applicator.  Even though the box is large, we quickly noted that one of the two neon green UV-reactive tubes had a slight kink in it from being coiled in too tightly.


GeForce 9800 GTX+ cards are as long as it gets, with two 6-pin power connectors at the end, and dual DVI-I ports with S-Video at the other.  Although lengthy, the cards are deceivably light thanks to the ThermalTake TMG ND4 VGA Coolers that were used, consisting of a small copper block and quiet 60mm fan.  A clear plastic shroud with a small impeller fan lit by a blue LED pushes some air over the top of the copper block and out the vent at the end, although the plastic shaft does not reach all the way to the end of the case, allowing air to remain inside the case.
Each fan requires it's own 4-pin MOLEX power connector, increasing the number of outputs needed from the PSU.  This is clearly something that should have been handled by the slot itself, and it's doubtful that the fan serves any real purpose here as the water blocks provide all of the real cooling.  If, let's say, the block failed for some reason, there's almost no way this small fan could prevent overheating. At least the MOSFETs receive some passive cooling from four aluminum heatsinks attached directly on top, however, these are attached using flimsy thermal tape. 


Water cooling consisted of a large copper plate sitting atop the GPU with adhesive pads between it and the memory and two marked rubber hoses protruding from each block, clearly labeled as IN or OUT.  An issue that most users will run into is the total number of power connectors that the Hydra needs to run properly.  Each card requires two 6-pin power connectors, while most modern PSU's probably only have two.  To get the other two, you'll wind up using the power cables provided in the bundle.  Each of these takes up two MOLEX plugs, four in total.  Then add in the two fan cables and finally one more for the BigWater itself and you're looking at a total of 7 4-pin MOLEX and two 6-pin power cables.  This is on top of any other fans or devices that are being powered.


The 9800 GTX+ supports two SLI connectors, allowing for 3-Way SLI (or more) with a compatible motherboard and drivers.  A small cable runs from the card to the bracket, to light a small LED there alerting the user that the card is powered.  A major problem we found when inspecting the cards concerned the front end of the copper plate.  Seen on both cards, the plate curls away slightly towards the front, lacking any contact with the chips at all.

Thermaltake Bigwater 760is


Thermaltake's BigWater series of coolers has been commerically available for some time now, and has generally received some high marks for its cooling capabilities.  Although adding in water-cooling to a system is not a novel idea, typically the base of the unit remains external.  The BigWater 760is included with the Hydra has the advantage of being installed internally, using two empty 5 1/4" bays.


The main unit consists of a pump, reservoir, radiator and top-mounted 120mm fan, that is illuminated by a blue LED when powered.  All of this is masked by a black front plate with a small mesh ventilation opening used for air intake.  Air is pushed downwards by the fan through the all-aluminum radiator, which uses dimpled tube technology, swirling the coolant within the radiator in order to increase thermal transfer. While we liked the HYDRA labeling and the blue glow emanating from the vent, we once again feel that there's a missed opportunity here.  So much of the space is used for company or product logos when it could have been used for temperature readouts or other controls.  We're also a bit concerned that the warm air, once expelled downwards and out from the BigWater radiator, has nowhere else to go but rise back upwards into the unit. 


At the rear of the BigWater 760is we find the P500 pump and reservoir, which should hold up to 130cc of coolant.  The P500 uses ceramic bearings which should extend the lifespan of the pump and has a maximum pumping capacity of 500L/hr.  Like everything else, it needs a 4-pin power connector to run properly, and also comes with a three-pin motherboard connector and speed control dial that will allow the user to monitor and adjust the fan speed as they like.  As stated before, we would have preferred to be able to control the fan speed externally, such as lowering the fan speed during low-performance usage in order to keep noise output down.  The way it stands now, you would need to open the case each time you want to change speed settings. 


The entire kit contains the Thermaltake BigWater 760is with two sets of UV-reactive neon-green tubing attached to the pump, a 500cc bottle of ethylene glycol based coolant, and a plastic squirt bottle used to transfer said coolant from storage to the reservoir.  Each tube is marked either "out" or "in" to prevent confusion when attaching them to the 9800 GTX+ cards, and are fitted with medical-grade "Y" splitters.  While the current configuration is meant to be connected to these two cards only, the Thermaltake BigWater 760is can easily support additional cooling components, such as CPU or Northbridge water blocks.  Additional units can be purchased directly through Thermaltake on their website.

Installing the ECS GeForce 9800 GTX+ Hydra

We used an Antec Nine Hundred as the base for our installation of the Hydra.  Our first step was to remove the Thermaltake BigWater 760is from the foam packaging, and lay out the tubes to unkink one of the lines.  Power ables and tubes we pulled straight out and the clamps checked.  Although not mentioned, you'll also want to place the clamps that come separately with the unit onto the black hoses on each card - an oversight we made when connecting them later on.

Thermaltake recommends installing the unit in the upper bays of a case in order to keep the reservoir higher than the waterblocks, but with a full assortment of drives already installed, we had to think otherwise.  Thus, we removed the top one of the two drive cages in the Nine Hundred to seat the BigWater 760is - a tedious routine that we clamored about in our earlier review.  This led us to our first problem: the length of the BigWater plus the length of the 9800GTX+ cards made installation along the middle cage impossible.  We decided to try the bottom cage and also ran into similar issues with the BigWater running into the motherboard's headers there.


In our third rebuild, we finally settled for removing all but one of the 5 1/4" drives from the uppermost section of the chassis and placing the BigWater up there.  In the process, we also had to remove the Corsair Dominator fan we use to cool our memory, and still found it to be a tight fit with the edge of the BigWater almost making it to the memory chip itself.  The video cards come completely pre-assembled, so the only trick here is to match the correct hoses to the tubes leading from and to the pump.

Finally, once everything was squared away - both cards installed, cables plugged in and hoses connected - we finally filled the reservoir with coolant.  Powering up the system for the first time is always the hardest step as it requires a good deal of faith that everything will work as expected.  Nothing could be worse that not noticing a loose tube and having coolant shooting all over your board, cards, etc.  For us, everything was fine and we continually added more coolant until a steady inward and outward flow was observed.

Blue LEDS on both cards and the BigWater plus UV-reactive coolant can really add some bling to even the most tricked-out PC, but we have to say that a kit like this really isn't for the faint of heart.  Between installation conflicts and the concerns dealing with water-cooling, you really have to ask yourself if it's really worth all of the hassle. 

Test System and 3DMark06 Results



We tested all of the graphics cards used in this article on either an ASUS Striker II Formula nForce 780i SLI motherboard powered by a Core 2 Duo E6800 dual-core processor and 2GB of low-latency Corsair RAM. The first thing we did when configuring the test system was to enter their BIOS and set all values to their "optimized" default settings. Then we manually configured the memory timings and disabled any integrated peripherals that wouldn't be put to use. The hard drive was then formatted, and Windows Vista Ultimate and the latest DX10 update was installed. When the installation was complete, we then installed the latest chipset drivers available, and installed all of the other drivers necessary for the rest of our components.  Auto-Updating and System Restore were also disabled and the hard drive was defragmented.

The HotHardware Test System
Core 2 Powered


Motherboard -

Video Cards -

Memory -

Audio -

Hard Drive

Hardware Used:
Core 2 Duo E6800 (3GHz) 

Asus Striker II Formula
nForce 780i SLI chipset

Diamond Radeon HD 3850
Sapphire Atomic Radeon HD 3870
HIS Radeon HD 4850 IceQ4 TurboX
Sapphire Radeon HD 4870
EVGA GeForce 8800 GT OC
PNY GeForce 8800 GTS 512
Gigabyte GeForce 9800 GT
EVGA GeForce GTX 260
ECS GeForce 9800 GTX+ (SLI)

2048MB Corsair PC2-6400
2 X 1GB

Integrated on board

Western Digital Caviar SE16

250GB - 7,200RPM - SATAII

OS - 

DirectX -

Video Drivers

Synthetic (DX) -

Synthetic (DX) - DirectX9 -

DirectX10 - 
DirectX10 -
OpenGL -

Relevant Software:

Windows Vista Ultimate

DirectX 10

NVIDIA Forceware v177.41 (GTX 260)
NVIDIA Forceware v177.19 (98xx)
NVIDIA Forecware v175.19 (88xx)
ATI Catalyst v8.8

Benchmarks Used:
3DMark06 v1.0.2
3DMark Vantage
Half-Life 2: Episode 2
Company of Heroes
Enemy Territory: Quake Wars*

* - Custom Test
(HH Exclusive demo)

Performance Comparisons with 3DMark06 v1.0.2
Details: www.futuremark.com/products/3dmark06

3DMark06 is a synthetic benchmark, designed to simulate DX9-class game titles. This version differs from the earlier 3Dmark05 in a number of ways, and includes not only Shader Model 2.0 tests, but Shader Model 3.0 and HDR tests as well.  Some of the assets from 3DMark05 have been re-used, but the scenes are now rendered with much more geometric detail and the shader complexity is vastly increased as well. Max shader length in 3DMark05 was 96 instructions, while 3DMark06 ups that number to 512. 3DMark06 also employs much more lighting and there is extensive use of soft shadows. With 3DMark06, Futuremark has also updated how the final score is tabulated. In this latest version of the benchmark, SM 2.0 and HDR / SM3.0 tests are weighted and the CPU score is factored into the final tally as well.


A single ECS GeForce 9800 GTX+ card seems to be running along well enough on its own as it meets the performance of Sapphire's Radeon HD 4870 head-on, and only behind the lead GeForce GTX 260 by 600 Marks.  Throw in that second card in SLI, and ECS grabs the top spot all for itself.  The SLI numbers are ~1300 Marks higher than a single card mustered - roughly a 10% increase in overall performance. 


In the individual shader models scoring, we see that the 9800 GTX+ is still sitting pretty with the second highest numbers in Shader Model 2.0 testing, yet only fourth best with the Shader Model 3.0 benchmarks.  It was quickly surpassed by the two latest higher-end releases from ATI - the Radeon HD 4870 and the more similarly priced HD 4850.  Back to SLI testing, we saw little if any improvement in the SM2.0 results, but SM3.0 really took off blowing well past the HD 4870 and GeForce GTX 260 numbers, and topping out just shy of 8000 Marks.

3DMark Vantage


Futuremark 3DMark Vantage
Synthetic DirectX10 Gaming

3DMark Vantage

The latest version of Futuremark's synthetic 3D gaming benchmark, 3DMark Vantage, is specifically bound to Windows Vista-based systems because it uses some advanced visual technologies that are only available with DirectX 10, which isn't available on previous versions of Windows.  3DMark Vantage isn't simply a port of 3DMark06 to DirectX 10 though.  With this latest version of the benchmark, Futuremark has incorporated two new graphics tests, two new CPU tests, several new feature tests, in addition to support for the latest PC hardware.  We tested the graphics cards here with 3DMark Vantage's Performance preset option, which uses a resolution of 1280 x 1024.


Both NVIDIA and ATI find their latest generation of cards handling the Vista-only 3DMark Vantage much better than previous ones.  Unfortunately for ECS, the 9800 GTX+ falls in with the latter, and while it does take the lead amongst the 88xx/98xx cards as well as the HD 38xx series, its performance was far off that of the HD 4800 series of cards as well as the GTX 260.  On the bright side, this is the Hydra were talking about here, so its assumed that you'll be running two 9800 GTX+ cards in tandem.  In doing so, the results were greater than a 50% increase over original scores, just nipping the GTX 260 for the overall lead. 


The individual GPU tests don't really tell us anything new about the performance of our cards that the overall score didn't.  From bottom to top, we've got the Radeon HD 3800 series, followed by a close grouping of 8800 and 9800 cards.  Out of this stack, the 9800 GTX+ reigns supreme, but doesn't make much of a dent against the HD 48xx cards, nor the GTX 260.  Once we got to the SLI testing, we saw some dramatic increases in the frame rates - pretty much double the original scores.

Half-Life 2: Episode 2


Half Life 2: Episode 2
DirectX9 Gaming Performance

Half Life 2:
Episode 2

Thanks to the dedication of hardcore PC gamers and a huge mod-community, the original Half-Life was one of the most successful first person shooters of all time. And courtesy of an updated game engine, gorgeous visuals, and intelligent weapon and level designs, Half Life 2 became just as popular.  Episode 2 - the most recent addition to the franchise - offers a number of visual enhancements including better looking transparent texture anti-aliasing. These tests were run at resolutions of 1280 x 1024 and 1600 x 1200 with 4X anti-aliasing and 16X anisotropic filtering enabled concurrently.  Color correction and HDR rendering were also enabled in the game engine as well.  We used a custom recorded timedemo to benchmark all cards for these tests.


In the first non-synthetic benchmark, a single GeForce 9800 GTX+ ran numbers in Half Life 2 that were almost on par with an overclocked HD 4850 from HIS, with only a frame or two per second separting the two.  The biggest concern for these two cards would be the 25% percent hit that they took when we switched over to the higher resolution. When running in SLI, the performance at 1280x1024 didn't scale all that well, as we were only able to pick up and additional 5 fps, but it did lessen the gap between a single card and the GTX 260 or HD 4870.  Better yet, there wasn't the same pronounced dropoff when running at 1600x1200, where the ECA Hydra setup and GTX 260 were running at a virtual tie.

Company of Heroes: Opposing Fronts


Company of Heroes: Opposing Fronts
Details: www.companyofheroesgame.com

Company of Heroes

Relic Entertainment's World War II era real-time strategy game Company of Heroes was originally released as a DirectX 9 title for Windows.  But recent upates to the game have incorporated support for new DirectX 10 features that improve image quality and enhance the game's finer graphical details.  The game features a built-in performance test which which we used to attain the results below. Our Company of Heroes tests were run at resolutions of 1280 x 1024 and 1600 x 1200 with 4X anti-aliasing and all of the game's image-quality related options set to their maximum values.


ATI's cards, whether they be the older 38xx series or the newer 48xx series just don't seem to handle Company of Heroes titles very well.  This is not new news, although even we were surprised by the HD 4870 getting handily beat by the plain jane GeForce 9800 GT - at least at 1280x1024.  What we weren't expecting was the way the 9800 GTX+ handled this game, whether or not we had them running in SLI.  A single 9800 GTX+ card was able to beat or meet the GTX 260, depending on the resolution, and two cards offered a significantly higher frame rate.




If you're at all into enthusiast computing, the highly anticipated single player demo of the hot, new, upcoming FPS smash-hit Crysis, should require no introduction. Crytek's game engine visuals are easily the most impressive real-time 3D renderings we've seen on the computer screen to date.  The engine employs some of the latest techniques in 3D rendering like Parallax Occlusion Mapping, Subsurface Scattering, Motion Blur and Depth-of-Field effects, as well as some of the most impressive use of Shader technology we've seen yet.  In short, for those of you that want to skip the technical jib-jab, Crysis is HOT.  We ran the SP demo with all of the game's visual options set to 'High' to put a significant load on the graphics cards being tested.


Crysis restored at least part of the lost faith in the set of Radeon cards, as the HD 4870 rebounded to the point of being directly competetive with the GeForce 9800 GTX+ and GTX 260 cards.  At 1600x1200, the frame rates of the 9800 GTX+ took a severe hit, falling well off the pace set by the HD 4870 resulting in performance numbers more along that of the HD 4850.  SLI testing once again proved to be a great boon for the ECS Hydra Pack.  Performance numbers went up appreciably, with frame rates at 1600x1200 better than any other single card could achieve at 1280x1024.

Enemy Territory: Quake Wars


Enemy Territory: Quake Wars
Details: www.enemyterritory.com

Enemy Territory:
Quake Wars

Enemy Territory: Quake Wars is Based on id's radically enhanced Doom 3 engine and viewed by many as Battlefield 2 meets the Strogg, and then some.  ET: Quake Wars also marks the introduction of John Carmack's "Megatexture" technology that employs extremely large environment and terrain textures that cover vast areas of maps without the need to repeat and tile many small textures.  The beauty of megatexture technology is that each unit only takes up a maximum of 8MB of frame buffer memory.  Add to that HDR-like bloom lighting and leading edge shadowing effects and Enemy Territory: Quake Wars looks great, plays well and works high end graphics cards vigorously.  The game was tested with all of its in-game options set to their maximum values with soft particles enabled in addition to 4X anti-aliasing and 16x anisotropic filtering.


ET: Quake Wars shows a clear progression moving from the HD 3850 up to the HD 4870, but a much thigns were murkier on NVIDIA's side.  The "newer" 9800 GT came in behind the others, our overclocked 8800 GT nudged past the 8800 GTS 512, and the 9800 GTX+ and GTX 260 each came out on top, depending on what resolution settings we had tested at.  The gains we attained while running two 9800 GTX+ cards in SLI were mostly negligible at 1280x1024, where me may be getting more CPU- than GPU-bound, but at 1600x1200 we picked up an additional 20fps.  That's close to a 30% swing in our favor, and almost exactly the same frame rate that we had recorded at the lower resolution.

Overclocking Results


Overclocking the ECS GeForce 9800 GTX+ Hydra
Raising the bar even higher

We set out to raise each speed until we reached any kind of instability, benchmark crash, or other artifacting noticeable on screen.  Starting out at 740 MHz, 1836 MHz, and 1100MHz, respectively, we bumped the speeds up one component at a time until we either crashed or saw graphic anomalies in the benchmark routines.  With the extravagant cooling provided on the ECS Hydra, we hoped for some big numbers since temperatures would be held in check.

840 MHz was as high as we could get for the GPU.  A 100 MHz overclock doesn't sound all that great until you realize that the 9800 GTX+ is really just an overclocked 9800 GTX to begin with.  Specs for the 9800 GTX call for a 675MHz clock speed, so our 840 MHz can actually be thought of as a 165 MHz boost.  Shader clock speeds topped out at 2071 MHz, a 235 MHz increase, and the memory at 1250 MHz (2500 effective).

With our overclocked cards running stable, we decided to give 3DMark Vantage another run-through to see what kind of frame rate increases we might be looking at.


3DMark Vantage's GPU tests showed over a 4 frame per second advantage while overclocked, - roughly equivalent to a 12% increase in overall performance.  We also measured temperatures while running at idle (37 degrees F) and while under load during our overclocking routines (44 degrees F), and saw only a 7 degree difference.  Conclusion: We're running some of the fastest numbers in our benchmarks with the ECS GeForce 9800 GTX+ Hydra without the extra thermal challenges associated with higher clock speeds.

Power Consumption and Thermals

We'd like to cover a few final data points before bringing this article to a close. Throughout all of our benchmarking and testing, we monitored how much power our test systems were consuming using a power meter. Our goal was to give you an idea as to how much power each configuration used while idling and under a heavy workload. Please keep in mind that we were testing total system power consumption at the outlet here, not just the power being drawn by the motherboards alone.

Total System Power Consumption
Tested at the Outlet

You would have to expect that two cards plus the BigWater pump plus all of those MOLEX connectors we plugged in would add up. At idle, the total system draw was at 217 Watts, well over all of the other cards except the Radeon HD 4870, which is a mere 20W back.  Under load, however, the total consumption rate nearly doubles, sucking down a hefty 384 Watts.  Clearly, purchasing the ECS GeForce 9800 GTX+ Hydra will not only cost you up front, but will continue to draw power, and money, from you down the road.

One of the main selling points, other than pure performance, would have to be the quieter, cooler operation of the two 9800 GTX+ cards and the Hydra didn't disappoint.  Idle temps were a chilly 37 degrees Fahrenheit, and when measured again while under load only raised to 44 degrees.  That's close to the same temperature as the two other GeForce cards while at idle.  Looking at ATI's camp, the HD 4870's temps nearly double that of the ECS Hydra.  If there's one thing that might detract from this is the noise output of the Thermaltake BigWater 760is.  Even on the low setting, the fan does make a bit more noise than a single card's cooler might produce, although probably not as much as two cards could have.  It's a small price to pay for this kind of performance.

Performance Summary and Conclusion


Performance Summary:  A single GeForce 9800 GTX+ isn't bad to have around - its performance puts it more or less on terms with an AMD Radeon HD 4850, a card that comes with a similar price tag.  Put two of these together in SLI and you've got more than a match for just about any single GPU based card out there, and even more so after bumping up the core, shader, and memory clock speeds.  3DMark Vantage overall scoring was spot-on with the GeForce GTX 260, while individual GPU Test frame rates were close to 25% better with the ECS Hydra.  Most, if not all, of the gaming benchmarks were heavily skewed in the Hydra's favor as well with the delta between it and the closest runner-up ranging from 10% in ET: Quake Wars up as high as 33% in Company of Heroes.

At a price point of $549 (U.S.), the ECS GeForce 9800 GTX+ Hydra is a hefty purchase, but when you consider it piece by piece, it's actually a good deal on some high-end hardware.  Each 9800 GTX+ alone could set you back as much as $199, add in the Thermaltake BigWater 760is kit and you're looking at another $170 or so.  You also get the pre-installed water blocks on the video cards and a full retail copy of Rainbox Six: Vegas 2 to show off your purchase.  That's not a bad way to go about upgrading your system.

However, we felt that ECS (and Thermaltake, by extension) left us wanting more.  Providing excellent, yet extravagant cooling methods almost demands that the cards come pre-overclocked; it's not enough to force the consumer to go out and do this on their own.  Our overclocking experience was so favorable, adding an additional 12-14% in overall performance while barely affecting thermals, that we can't see why ECS didn't go the extra mile to ship them with higher speeds by default.  It would also have been nice to see some changes with the Thermaltake BigWater 760is.  With a kit like this, having external options on monitoring temperatures or changing fan speeds would make for a real killer product.  Having to open your case to find and turn a small dial, on the other hand, seems to be less than a user-friendly approach.

Our final concerns go back to ECS and their approach at high-end products.  We had previously looked at their X48T-A and noted that a few corners were cut; things like hot gluing heatpipes to heatsinks for heat transference are shortcuts to watch out for.  Unfortunately, the same kind of problems reared their head with the GeForce 9800 GTX+ Hydra kit as well.  The small, poorly attached heatsinks over the PWM were the first warning, and the lifting of the water blocks over the front of each card were a huge disappointment.  There's really no excuse to ship them out in this condition.  We also can't help but point out the ineffective plastic coolers placed over the waterblocks that seem to add little more than some extra bling.   

  • Convenient, all-in-one internal water-cooling kit
  • System can be expanded to include other components 
  • Top-notch performance when run in SLI mode
  • Temperatures are kept in check, even under load conditions
  • BigWater fan runs a bit loud, even at lowest settings
  • Bezel bereft of any displays or controls 
  • Power-hungry beast in both number of connections and Watts
  • Some shoddy construction used with card cooling

Our Final Verdict:  In short, we love the performance of the ECS GeForce 9800 GTX+ Hydra, yet we just can't abide by all of the little nuances that take away from making this a "break-out" product.  Innovation is one thing, but quality control must be at the forefront of the minds at ECS if they truly want to compete with the upper-tier enthusiast-class manufacturers.

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