SanDisk Extreme Pro Solid State Drives Reviewed

Article Index

Test Setup, IOMeter 1.1 RC

Our Test Methodologies: Under each test condition, the Solid State Drives tested here were installed as secondary volumes in our testbed, with a separate drive used for the OS and benchmark installations. Out testbed's motherboard was updated with the latest BIOS available as of press time and AHCI (or RAID) mode was enabled. The SSDs were secure erased prior to testing, and left blank without partitions for some tests, while others required them to be partitioned and formatted, as is the case with our ATTO, PCMark 7, and CrystalDiskMark benchmark tests. Windows firewall, automatic updates and screen savers were all disabled before testing. In all test runs, we rebooted the system, ensured all temp and prefetch data was purged, and waited several minutes for drive activity to settle and for the system to reach an idle state before invoking a test.

HotHardware Test System
Intel Core i7 and SSD Powered

Processor -

Motherboard -


Video Card -

Memory -

Audio -

Storage -

 

Hardware Used:
Intel Core i7-4770K

Gigabyte Z87X-UD7 TH
(Z87 Chipset, AHCI Enabled)

Intel HD 4600

8GB G.SKILL DDR3-1600

Integrated on board

Corsair Force GT (OS Drive)
Micron M600 (256GB / 1TB)
Samsung 850 Pro (1TB) 
SanDisk Extreme Pro (240, 480, and 960GB)
Intel SSD 730 (480GB)

OS -
Chipset Drivers -
DirectX -

Video Drivers
-


Relevant Software:
Windows 8.1 Pro x64
Intel 9.4.0.1027, iRST 12.8.0.1016
DirectX 11

Intel HD 10.18.10.33

Benchmarks Used:
IOMeter 1.1.0 RC
HD Tune v5.50
ATTO v2.47
AS SSD
CrystalDiskMark v3.0.3 x64
PCMark 7
SiSoftware Sandra 2014

IOMeter
I/O Subsystem Measurement Tool

As we've noted in previous SSD articles, though IOMeter is clearly a well-respected industry standard drive benchmark, we're not completely comfortable with it for testing SSDs. The fact of the matter is, though our actual results with IOMeter appear to scale properly, it is debatable whether or not certain access patterns, as they are presented to and measured on an SSD, actually provide a valid example of real-world performance for the average end user. That said, we do think IOMeter is a reliable gauge for relative available throughput within a given storage solution. In addition there are certain higher-end workloads you can place on a drive with IOMeter, that you can't with most other storage benchmark tools available currently.

In the following tables, we're showing two sets of access patterns; our custom Workstation pattern, with an 8K transfer size, 80% reads (20% writes) and 80% random (20% sequential) access and a 4K access pattern with a 4K transfer size, comprised of 67% reads (34% writes) and 100% random access.


The SanDisk Extreme Pro series of solid state drives is tuned for client workloads and didn't put up the kind of numbers here that some of the others were capable of.

 

The lower IOPS performance of the SanDisk drives is reflected in the total bandwidth numbers. The drives trailed the pack here.
 


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