Investigations into Athlon X2 Overclocking
by Jarred Walton on December 21, 2005 12:00 PM EST- Posted in
- CPUs
Doom 3 and Quake 4 Performance
We ran tests with both Doom 3 as well as Quake 4, and while the numbers aren't identical, the trends are similar. Quake 4 disables some of the graphical effects during the time demo, so I know that in real gameplay with audio enabled, your frame rates will be significantly lower than what we're showing here.
Doom 3:
Quake 4:
At low resolutions, performance once again scales linearly with processor speed. We still see large gaps across the board... until we enable 4xAA. At 1280x1024 and 1600x1200, antialiasing reduces the performance gap to less than 10%. Unless you're running SLI with high-end graphics cards, you won't need the world's fastest processor to get the most out of Doom 3 and Quake 4.
We ran tests with both Doom 3 as well as Quake 4, and while the numbers aren't identical, the trends are similar. Quake 4 disables some of the graphical effects during the time demo, so I know that in real gameplay with audio enabled, your frame rates will be significantly lower than what we're showing here.
Doom 3:
Quake 4:
At low resolutions, performance once again scales linearly with processor speed. We still see large gaps across the board... until we enable 4xAA. At 1280x1024 and 1600x1200, antialiasing reduces the performance gap to less than 10%. Unless you're running SLI with high-end graphics cards, you won't need the world's fastest processor to get the most out of Doom 3 and Quake 4.
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TheHolyLancer - Wednesday, December 21, 2005 - link
i that since this is an OC thread, they should have used a DFI NF4 Ultra-D or a Expert, they have a 4V jumper that allows you to take DRAM voltage into 4 V (i hope no one does though)JarredWalton - Thursday, December 22, 2005 - link
The higher voltages would have helped the VX RAM a bit. I may shift to a LanParty SLI-DR for the cooling test... or at least try it at some point to see how much of a difference it makes in performance.KingofCamelot - Wednesday, December 21, 2005 - link
I noticed that the BF2 demo file for v1.12 did not work. The bf2bench.demo file needs to be changed for it to work. The bf2bench.demo file can be opened in Notepad, and the following changes need to be made.These lines:
demo.camerafile mods\bf2\Demos\jw112.bf2cam
demo.demofile mods\bf2\Demos\jw112.bf2demo
Need to be changed to:
demo.camerafile mods\bf2\Demos\jwanandtech112.bf2cam
demo.demofile mods\bf2\Demos\jwanandtech112.bf2demo
JarredWalton - Thursday, December 22, 2005 - link
Thanks! I've corrected the file and uploaded the new version.--Jarred Walton
tayhimself - Thursday, December 22, 2005 - link
Hey Jared,This was a very well written article. You were thorough with the benchmarks almost to a fault. I liked your introductory and ending commentary. Your first article was just as good.
Props!
sxr7171 - Thursday, December 22, 2005 - link
Agreed. This was a quality job for sure and the questions he raises at the end are very pertinent. I'm sure he'll come up with the answers.ElFenix - Wednesday, December 21, 2005 - link
i assume you used the stock heat sink/fan unit?JarredWalton - Wednesday, December 21, 2005 - link
Er, sorry I forgot to mention that. I used an XP-90 with a 3000 RPM 92mm fan (generic fan). I'll make a note of that, since that's important information. The followup looking at cooling options will use a retail HSF as well as the XP-90, an Asetek MicroChill, and an Asetek WaterChill. (Why Asetek? Because they asked me to review their two products.)Furen - Wednesday, December 21, 2005 - link
How come the graphs arent zeroed? I suppose it'd be pretty much a bunch of overlapping straight lines if they were but having a graph that shows framerate from 63.5 to 65.0 is not much better.JustAnAverageGuy - Wednesday, December 21, 2005 - link
Yeah, the graphs could be a bit misleading unless you look at what the lines actually represent.The difference between the OCZ PC4800 and everything else looks huge in the http://images.anandtech.com/reviews/cpu/amd/athlon...">Doom 3 graph @ 1600x1200 4xAA, but if you actually look at the lines, the difference is less than 1 frame per second.