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SDPlissken
01-05-05, 05:23 PM
I was wondering if a faster CPU makes a big difference in frame rates (like an extra 20fps). Currently I have a P4 2.4ghz 400/533 FSB (something like that), 786 MB DDR ram PC 2700, and 40 gig HD. Using an eVGA Geforce 6800 NU.

So does a faster CPU help in getting more frame rates (around 20+) and be constant?

saturnotaku
01-05-05, 05:32 PM
An 800 MHz front side bus P4 CPU plus 1 GB (2x512) of good, low latency PC3200 memory will improve performance. Also, having a 256 mb video card will help if you plan to play at resolutions above 1280x1024 with FSAA and AF.

SH64
01-05-05, 05:41 PM
CPUs can help in getting better framerates indeed , but it all depends on the speed between the older & the new one .
for ex going from P4:2.4GHZ(533FSB) to P4:3GHZ(800FSB) will show some noticable increase in the performance .. espically in games that relay on the CPU power .. like Doom3 . however going from 2.8Ghz to 3.0Ghz will bring only a little performance thats isnt worth the upgrade & the cost IMO
theres nothing like "you get constant 20fps" ... the performance increase is measured by percentage not by the number of frames .
a percentage like 5% , 10% , 30% .. etc
for ex. if a game is running @20fps avarage & you got a new CPU that should bring 50% performance increase your fps will be 30fps .
& if other game is running @50fps , with the CPU upgrade you gonna get ~ 75fps & so on .
i hope you got my point :p

as for your main question .. yes upgrading your CPU will help increasing the framerate but no as much as you stated .

& btw i believe this thread should be in the CPUs forum :angel:

Decimator
01-05-05, 06:25 PM
This THG article should give you some idea of the difference to your fps that upgrading your CPU would give you, all of these tests were conducted with 6800 GT's and 1 GB of RAM. Older games are less CPU limited, so the improvements won't be as big.

http://www17.tomshardware.com/cpu/20041221/cpu_charts-15.html#directx_9

Greg
01-05-05, 07:43 PM
My Doom3 benchmark may answer your question ;)

AthlonXP 2100+ 512mb, GeforceFX5800 (@485/970)
640x480 med 48.9
800x600 med 48.2

Athlon64 3200+ 1gb, GeforceFX5800 (@485/970)
640x480 med 81.2
800x600 med 68.2

Those results were consistent will most games.