CPU and Video card equality

Haervii

Senior member
Apr 20, 2000
428
0
0
I've always heard about how bottlenecks form when the CPU or video card is faster than the video card or CPU. (e.g. an ATI Rage Pro with a 1.2Ghz Athlon or a V5500 with a CyrixII)
So with a Duron 900-950Mhz and a Geforce2MX, which would be the bottleneck? and how about that OCed Duron with a V5500?


Thanx for any replies/comments, etc.
 

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
It would depend on what resolution you were running. With either board, at 1024x768 the video card would be the bottleneck. Also with either board, @ 640x480 the CPU would be the bottleneck.

Viper GTS
 

Noriaki

Lifer
Jun 3, 2000
13,640
1
71
It's the same for any CPU/video card combo

Low res the CPU is the bottleneck
High res the video card's memory is

 

Viper GTS

Lifer
Oct 13, 1999
38,107
433
136
High res the video card's memory is

Not necessarily, it could be fillrate limited. Remember, rendering at 1280x960 requires four times the time as rendering at 640x480. If a GPU can spit out 100 fps at 1280x960, then it could render ~400 at 640x480. But there's no way the CPU could keep up.

Viper GTS
 

Rand

Lifer
Oct 11, 1999
11,071
1
81
There is no set speed at which any certain video card/processor will be the bottleneck.

What the bottleneck is in a system depends as much upon what color depth and resolution your running at and what the application is than what the processor/video card is.
In a FPS like Q3 you could be video card limited at a resolution of 1024x768 even with a Geforce2 if you had anything 650MHz or faster, wheareas in say most RPG games you'd likely be processor limited even at a resolution like 1600x1200 even with something like a 1.2GHz Athlon even if you only had something like a Voodoo3 for a video card.