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Written by Olin Coles   
Wednesday, 07 April 2010
Table of Contents: Page Index
6GB Corsair Dominator-GT 2000MHz DDR3 Memory
Closer Look: Corsair Dominator-GT DDR3
DDR3 Series Results
RAM Testing Methodology
System Benchmark Tests
Graphics Benchmark Tests
Triple-Channel DDR3 Final Thoughts
Corsair Dominator-GT DDR3 Conclusion

Testing Methodology: DDR3 RAM

Before the testing really begins, there are several settings to be adjusted in the BIOS. Many combinations of the CPU base clock and multiplier are paired to the memory multiplier, giving us the desired RAM (and CPU) operating speed. In all tests, the processor was intentionally reduced to keep nearest to the original default clock speed. When I first begin this process and start benchmarking for a baseline, the memory voltage and timing are always left at the manufacturer's default values.

After each and every change to the BIOS, the system is restarted and all RAM modules are automatically tested with MemTest86+ for one full pass. Since the modules are not yet overclocked, one pass is usually sufficient to determine if a bad part exists. Later, once I begin to overclock the memory, these tests are a good way of quickly pre-screening stable configurations. Once the test pass is complete, I move onto the synthetic benchmark tests. Here at Benchmark Reviews we use the following test suites and applications:

  • Lavalys EVEREST Ultimate Edition v5.30 CPU-Z_CMG6GX3M3A2000C7.png
  • Futuremark PCMark Vantage v1.0.2
  • Cinebench R11.5 Benchmark
  • Retouch Artists Adobe Photoshop-CS4 Action Script
  • Far Cry 2 v1.02 PC Video Game

Test System

Memory Tested

Benchmark Reviews tests each memory kit to validate manufacturers specifications and ensure system stability. Each memory module will overclock differently, so it's unrealistic to test headroom on our memory samples when the another kit may be meet specification by yield no additional overclock.

In each synthetic benchmark test Windows 7 was booted fresh and the application was opened. Task manager was then utilized to end the explorer.exe (Windows) process so that only the most essential services were running and consuming system memory. This procedure allowed the RAM to be as isolated as possible for our testing. Once the system was ready, I perform a single test-run of the benchmark, followed by three recorded tests. At the end of the series, I average the three results for the final score.

Sometimes it is very difficult to get broad results between the memory modules tested, so we use several different speeds of memory from participating manufacturers. Benchmark Reviews is very serious about performance, which is why we test the products against as many benchmarks as reasonably possible. Not every test suite is effective in these reviews, and some often calculate processor and other system components into the score. This is what makes a RAM review difficult: unless all of the modules compared have the exact same rating and the CPU operates at the exact same speed for each and every test, the comparison is always going to be subjective.



 

Comments 

 
# 6 DIMMs on P55?Hsew 2010-04-07 18:49
"Many dual-channel P55-Express motherboards offer six DIMM slots."

I'm sorry, but the only one that comes to mind is the Gigabyte GA-P55(A)-UD6 which, ironically, is STILL limited to 16GB, which means one must either install 4x4 GB or 4x2 and 2x4 GB to satisfy the limit. What is the point of that board anyway?
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# RE: 6GB Corsair Dominator-GT 2000MHz DDR3 MemoryDavid Ramsey 2010-04-08 12:52
The point of that board is to allow you to make use of any single-sided DIMMs you have laying around. It wouldn't make sense if you were buying all-new memory for a new build.
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# HeightSVH 2010-04-14 12:11
Seems the height of these modules would interfere with many of the higher capacity coolers on the market esp. when all 6 slots are used. What cooler did you use in this test? Would it have interfered if all 6 slots were filled. I am interested because I have the same mainboard and memory but need a higher end cpu cooler.

Cheers.
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# ClearanceOlin Coles 2010-04-14 13:19
I used the ProlimaTech Megahalems on the ASUS P6X58D motherboard. The cooler was situated so that the fan blows towards the back of the case. Although the cooler would perform better if it was situated so the fan would blow towards the top, it would interfere with the DIMM slots.
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