Radeon HD 3870 X2 Round-Up: Asus, HIS

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Our Test Systems and 3DMark06




HOW WE CONFIGURED THE TEST SYSTEMS: We tested all of the graphics cards used in this article on either an EVGA nForce 680i SLI motherboard (NVIDIA GPUs) or an Asus P5E3 Deluxe (ATI GPUs) powered by a Core 2 Extreme QX6850 quad-core processor and 2GB of low-latency Corsair RAM. The first thing we did when configuring the test systems was enter their respective BIOSes and set all values to their "optimized" or "performance" 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 was installed. When the installation was complete we fully updated the OS, and installed the latest DX10 redist and various hotfixes along with the necessary drivers and applications.
 
 

The HotHardware Test System

Core 2 Extreme Powered


Processor
-


Motherboard -






Video Cards -








Memory -




Audio -

Hard Drive
-

Hardware Used:
Core 2 Extreme QX6850 (3GHz) 


EVGA nForce 680i SLI
nForce 680i SLI chipset

Asus P5E3 Deluxe
X38 Express 

Asus EAH3870 X2 1GB
Asus EAX3870 X2 1GB TOP
HIS Radeon HD 3870 X2
ATI Radeon HD 3870 X2
Radeon HD 3870 (x 2)

Radeon HD 3870
GeForce 8800 GTX



2048MB Corsair PC2-6400C3
2 X 1GB
2048MB Corsair DDR3-1333 C7
2 X 1GB

Integrated on board

Western Digital "Raptor"

74GB - 10,000RPM - SATA



OS - 

DirectX -

Video Drivers
-



Synthetic (DX) -
DirectX -
DirectX -
DirectX -
DirectX -
OpenGL -

 
 
 
Relevant Software:

Windows Vista Ultimate

DirectX 10

NVIDIA Forceware v169.09/v169.28
ATI Catalyst Bets v8.451


Benchmarks Used:
3DMark06 v1.0.2
Company of Heros - DX10
Crysis - DX10
Half Life 2: Episode 2*
Enemy Territory: Quake Wars*

* - Custom Test
(HH Exclusive demo)


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


3DMark06
3DMark06 is the most recent addition to the 3DMark franchise. This version differs from 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.










Our 3DMark06 results were interesting to say the least.  The factory-overclocked EAH3870 X2 1GB TOP put up the best overall score amongst the X2 cards, but by a very small margin.  It turned out that the card's Shader Model 2.0 test result was actually coming in a bit lower than the other X2s, but its Shader Model 3.0 / HDR results were marginally higher. These were repeatable results, although unexpected considering the card's higher-clocked GPUs.


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