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Old 11-03-2011, 06:14 AM
rfxcasey rfxcasey is offline
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Quote:
Originally Posted by TonyD View Post
+1. I could not do this on my previous rig as I was using DDR-II 1066 memory, which couldn’t run any faster than the default 533MHz. With the cpu at 4GHz, I had a nominal 5% increase in frame rate compared to that at the default 3.4GHz. My current memory manages 750MHz without any voltage mod, achieved by setting the bus speed to 225MHz (cpu at 3.825GHz). This 12.5% increase in the base clock results in an almost identical increase in frame rates.

This implies that an increase in cpu speed alone will not noticeably improve the frame rates in CloD, but an increase in the data through-put capability certainly does, at least on my system. Perhaps what this sim really needs is an Intel hexa-core with tri-channel memory, or even an Opteron FX with quad-channel memory …

And the ‘process affinity mask’ setting is no longer in the config file, not that fiddling with the settings yielded any gain in my case either.
I'd have to say it is more the fact that it is DDR3, you are presumably keeping the same timing scheme and increasing the FSB. The higher the clock speed memory runs at the typically looser timing scheme you'll have to use. If you can keep your same timing and increase the frequency you will notice some improvement. If you have a very good set of memory, which would allow for overclocking while keeping the same timing you should tighten the timing rather then overclock.

There is virtually no difference as show in numerous benchmarks between running for instance DDR2 at 400Mhz with 5,5,5,15 timing or 533Mhz at 5,6,6,18. The main advantage of DDR 3 is the in increase data path of 240 pins (not all of which are used for data) as apposed to 184 pin DDR 2. Couple that with increased bus width between say an AM2 to a AM3 or comparable intel processor comparison last generation to current and the performance increase is noticeable. But don't be fooled by the marketing hype that higher clock frequencies automatically translate into big or any performance gains.

The main thing to look at is the quality of the memory and how tight you can get the timing at any frequency. If you spare your memory the overclock and tighten up the timing as much as you can while maintaining stability, the benchmarks would and have shown that there is virtually no difference in gaming performance or otherwise. The overclock will only generate more heat and electrical stress for no gain when compared to the tighter timing scheme.


Quote:
Originally Posted by TonyD View Post
Hi Ned

I’ve always preferred Ati because of their more efficient approach (which typically results in better pricing), but few users would be aware or even care about the architecture of whatever card they may have, as long as it works OK.
The Nvidia GTX 560 ti outperforms the 6950 while using less power. http://www.hwcompare.com/8889/geforc...adeon-hd-6950/

Last edited by rfxcasey; 11-03-2011 at 06:47 AM.
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