On Sun, Apr 12, 2009 at 10:43 PM, Jason Clinton < jclin...@advancedclustering.com> wrote:
> No, it does not degrade performance as long as the CAS latencies of both > DIMM types are identical and you would not get a clock-down by using that > quantity of RAM ranks. We have been able to attain Intel's reported, magical > 35GB/s number using ICC. GCC 4.3 is around 31GB/s. (At 1333MHz.) > I should qualify those numbers a little: when using any quantity of RAM exceeding 1 DIMM per channel, they clock down to 1066MHz, and benchmark at 33 GB/s w/ ICC and 29 GB/s with GCC 4.3. It doesn't matter if they are different sizes or not. The 35GB/s number is for single-populated memory configurations. -- Jason D. Clinton, 913-643-0306
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