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Just wondering if the formentioned card will be limited by the cpu?
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x1900Xt limited by x2 3800+?
- Thread starter Nixeh
- Start date
Really? I knew it would be cpu limited by single core but i thought dual core might of solved that problem.
Soldato
not if the game or application your using cant use both the cores 
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i think it depends what resolution you are playing with. I have seen some reviews saying that higher resolutions the cpu becomes less important in terms of frames
With a x1900xt you may be playing at high resolutions
With a x1900xt you may be playing at high resolutions
Soldato
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TBH it depends on game and resolution.
2.5Ghz X2
MS FS 2004: 1600x1200, max AA and AF, 6800 Ultra could handle that no probs, add clouds and it starts to fall over, however my X1900XT can handle max clouds at near 30FPS - This says to me that im CPU limited - I want a 3Ghz X2
BF2: 1600x1200, 4x AA - 8x AF was what the 6800 Ultra could do at 30FPS+, X1900XT = 6xAA, 16XAF = 40FPS+ usually around 60-80.
It really depends on what game your playing - atm single core wins
I have noticed in EVE that my CPU is at 55% - Dual core usage? 
Conc
2.5Ghz X2
MS FS 2004: 1600x1200, max AA and AF, 6800 Ultra could handle that no probs, add clouds and it starts to fall over, however my X1900XT can handle max clouds at near 30FPS - This says to me that im CPU limited - I want a 3Ghz X2
BF2: 1600x1200, 4x AA - 8x AF was what the 6800 Ultra could do at 30FPS+, X1900XT = 6xAA, 16XAF = 40FPS+ usually around 60-80.
It really depends on what game your playing - atm single core wins
I have noticed in EVE that my CPU is at 55% - Dual core usage? Conc
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Some games aren't CPU limited at all, like F.E.A.R or COD2.
Soldato
chaparral said:
FEAR is not cpu limited at all. If it was then the average framerate would be held back but this is not the case. Just because a faster cpu helps out in some areas of the game does not make that game cpu limited.
Farcry is highly cpu limited along with X3 where as FEAR will scale nicely with a better graphics card. I got 31fps with a 7800GT and now I get 68fps with an x1900. I doubt if I ran my opteron 144 @ stock (compared to 2.8ghz) it would make much of a difference in FEAR.
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Look at the FiringSquad results for F.E.A.R:
http://www.firingsquad.com/hardware/fear_cpu_performance/page4.asp
At 1600*1200 w/4xAA and 8xAF there's no difference between an X2 3800+ and an X2 4800+.
Even at 1024*768 with no AA there's only a 3 FPS difference, or 4%.
http://www.firingsquad.com/hardware/fear_cpu_performance/page4.asp
At 1600*1200 w/4xAA and 8xAF there's no difference between an X2 3800+ and an X2 4800+.
Even at 1024*768 with no AA there's only a 3 FPS difference, or 4%.
Ah thats cool to know, i dont mind having a 3800+ even if its slower in desktop apps but aslong as it doesnt limit the graphics card im getting 
Sorry my mistake..speeduk said:
I just looked at the test results from my own system..
1600x1200 4AA,16xAF all settings on max
Single 7800gtx (470/1300)
min 16fps
AVG 26fps
Max 54fps
48% below 25fps
45% between 25fps and 40fps
7% above 40fps
Two 7800gtx in sli (470/1300)
min 25fps
AVG 40fps
Max 83fps
0% below 25fps
65% between 25fps and 40fps
35% above 40fps
Yeah but ill be going no lower then 1600x1200
Soldato
naffa said:
cpu limited would be were a change to a faster cpu gives you a significant boost in speed.
In that benchmark you mention the rig was held back by the graphics, no matter what the processer was.