Bandwidth considerations
| Sisoft Sandra 2009 SP2 (15.72) - float buffered | ||
|---|---|---|
| Corsair DDR3-2,000 CL7 6GB 1T | Corsair DDR3-2,000 CL7 6GB 2T | Crucial Ballistix DDR3-1,600 C |
| 33.95 | 33.68 | 24.4 |
| Sisoft Sandra 2009 SP2 (15.72) - float buffered | |||
|---|---|---|---|
| Corsair DDR3-1,866 CL9 6GB DOM | Crucial DDR3-1,333 CL9 3GB | Crucial DDR3-1,066 CL7 6GB | Crucial Ballistix DDR3-1,600 C |
| 30.64 | 19.86 | 20.02 | 26.88 |
What you're looking at in the top graph is the performance of the Corsair DOMINATOR GT 2GHz with either 1T or 2T command rate. However, as you know, to get it up to 2GHz the CPU/BCLK were set to 3.292GHz and 143MHz, respectively.
The Crucial Ballistix Tracer is also run at the same speed but with a 1,430MHz clock, along with 8-8-8-24-2T timings.
The lower graph shows standard speeds of 3.2GHz CPU and 133MHz BCLK, and the memory ratios are such on the Gigabyte EX58-UD5 that we can hit 1,066MHz, 1,333MHz, 1,600MHz, and 1,866MHz with an identical setup.
Bandwidth is hugely impressive for 2GHz memory, as you would expect, and it easily takes top honours here.