[citation][nom]sincreator[/nom]Yes I believe they did disable cores to get some of the results, but the results without the cpu model included is actually a q6600 overclocked with different ram timings. Page 17 paragraph 3 they state this. Also the results from Ghost Recon Advanced Warfighter 2, and the original Crysis seem to heavily favor the DDR3 over the DDR2 system in all the different configurations they tested. I also dug up some tests that Tom's ran with DDR2 vs DDR3. Allthough it looks like you guys were emulating DDR2-800mhz. Seems like some titles benefited from the faster ram according to those tests. They only ran DDR-3 up to 1600mhz though instead of the 2000mhz max speed, which may/may not of added a few more frames per second.
http://www.tomshardware.com/review [...] 342-7.htmlCould be interesting to see how more recent games would be effected. It seems to vary from game to game from what I can tell with the older games tested. Either way there does seem to be a little difference. Maybe it would of effected newer titles more so, or even less, I don't really know.[/citation]
Hmmn… That is not how I read it. “All the way to the right our current high-end graphics card test platform based nForce 680i SLI and 1142 MHz DDR2 memory with a Core 2 Extreme 6800 processor. Two steps to the right I have emulated the same setup by disabling two cores of the quad core processor, and lowering the FSB towards 2.9 GHz.”
Thanks for clarifying! So it seems they overclocked Q6600 to 2.9 GHz and then disabled 2 cores to emulate X6800. That’s much better than using Yorkfield at 2.9 GHz, but I’d still like to know the FSB and multiplier, as that does affect performance and mem bandwidth. There are so many potential variables, the more you know the better.
Yes, Ghost Recon indeed showed significant gains until GPU limited down at 85 fps. Frustrated by lack of full test configurations, I stopped at FEAR, just before seeing that last game.
And the Tom’s link is medium details, 1280x1024, which is really more synthetic in nature IMO than more interesting settings. Similar to what I did with the first 19x10 settings, used to show some scaling. Premiere and WinRAR show nice gains though. It's all DDR3 though, no DDR2 in that story.
But all this really goes along the lines of what I said in the story about there being very little difference between DDR2 and DDR3 without overclocking (FSB and mem) . You can pull more from fully tweaked DDR3 platform, but real world impact was still rather small in most cases and pitiful compared to the cost back then. I hadn’t even considered 790i, thinking more of Intel’s DDR2+DDR3 chipsets I’ve used.
Keep in mind, I increased memory bandwidth in Sandra over 24% (from 6.72 GB/s to 8.36 GB/s) just through FSB overclocking and tweaking, despite lower resulting memory frequency and at the same CL5 main timings. And that isn’t even close to squeezing all you can from DDR2 either. We can’t wring out S775 DDR3 for all it’s worth without doing the same from the DDR2 setup. In the end, I still don’t think there would be a significant impact in any way, (a few tests maybe) which is why the far more popular DDR2 route seemed appropriate. The idea here was just to emulate overclocks/performance most folks are able to reap themselves. I wasn't even supposed to overclock further for the story... that was bonus info. =)