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Quake 4 Single vs Dual core
- Thread starter mmj_uk
- Start date
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I suppose it proves that gpu power is the primary force, and that ,modern graphics cards aren't overly affected by cpu speed once you get over a certain level of speed......
Soldato
Or it just proves that the multi-threaded element of Quake 4 was either:
1. not very well coded
or
2. doesn't do very much
Hav
1. not very well coded
or
2. doesn't do very much
Hav
Soldato
I suppose we won't see much advantage of multi threaded games until e.g. 8 cores -with a game having a process coded to use each thread.
I installed the patch on my P4 [email protected] and 6800nu rig. At 1280x1024xhigh game settings I got zero read ZERO increase in FPS by enabling SMP. But I knew the graphics card was the bottleneck.
[J]
[J]
Soldato
The P4 isn't true SMP though; it's just a nifty use of the registers within the CPU
Those results are to be expected though - at 800x600 you're CPU limited, hence the large boost in FPS. At 1680x1050 you're GPU limited so you won't see a large boost in FPS
Those results are to be expected though - at 800x600 you're CPU limited, hence the large boost in FPS. At 1680x1050 you're GPU limited so you won't see a large boost in FPS
Soldato
mmj_uk said:
Multiple cores are a long way off being *significantly* useful in games (with the exception, perhaps, of Falcon4, which can run the campaign engine on one CPU while the main flight sim runs on the other). There's a limit to what can be done out of sequence, and GPUs are already acting as a very significant "extra processor".
In CPU intensive flight sims or driving sims I suppose it's possible some of the physics or AI might be offloaded onto spare CPUs. But given that these kind of games struggle for sales (compared to FPS and other genres anyway), I'm not sure developers can afford too much extra dev time for what's going to be a minority market for quite some time. The only thing dragging me kicking & screaming towards a far-too-expensive-for-my-liking x2 CPU is the fact I make silly little flight sim movies, and Fraps can make very good use of the spare core. Top end video editors are mutlithreaded too, which would be useful for me. But if I throw the best part of £300 at a 165 Opteron I certainly won't be throwing another £300 after Sony Vegas!
I'm drifting off topic. FWIW though Q4 runs very well indeed on my 2.2GHz Barton, x800Pro at 1280x1024,x4,x8. I think that's on the graphic setting just down from "only for cards with 512Mb". I haven't bothered looking at frame rates because I've never had any stuttering to distract me. Great game... but then I liked Doom3, so my opinion may count for little.
Andrew McP
http://www.andrew.mcp.dsl.pipex.com/lomac.htm
Soldato
i rember reading a better benchmark on AMDzone (i think) were its was'nt a timedemo used it was a "netdemo" (could be worneg on the wording0 that took all the normal single player things like AI and alike in the benchmark which a time demo would not have and the gains were a lot bigger more onthe 40% side of things at 1268x1024