Will a GPU that runs at 1000MHz run on a computer that runs its buss speed at 400mhz?

ADE

ADE

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OK this was just one of those questions that I feel I should have already known but don't so I need to know if you have a card that runs at 1000MHz and you put it on a computer with a buss speed of 400MHz, what will happen? What will be the affects? and what are the bad things you get from doing this?
 
Nothing will happen at all. Bus speed and GPU speed have nothing to do with each other.

BTW, what computer are you running with a 400MHz bus? That's pretty low
 
Yes I know, but I always see there is a recommended speed for the GPU to run at.
I have a 400MHz and yes its a low speed nowadays. Sadly I have RAM that runs a 333MHz. Boy, I'm old fashioned compared to you guys. (-$-wonders if I just dissed myself-$-)
 
As bobo said, video card core/memory clocks dont have to match RAM or FSB on the motherboard.
 
yea... what gpu runs at 1ghz? haha
btw, is it a cpu at 400mhz or a cpu with bus speed of 400mhz? theyre definitely different.
 
Well, i mean some GPU's run faster and need the faster MHz to transfer the data fast enough to make the system run optimal right? If the GPU transfers the data at a speed of 1000Mhz and you have a CPU that only can take a buss speed of 400MHz, what will be the end result? You would not utilize the full extent of the GPU right?
 
well, mostly the mhz of the gpu will determine how much work and how many instructions it can perform in one clock... sure if the graphics card needs to constantly swap memory with the system memory then the cpu could bottleneck.. but thats not to say that a faster gpu wouldnt do better than a slower gpu in the games since it can still perform more work...
if the cpu fsb bottlenecked it, then the memory speed would be a major bottleneck as well... since most s754 and s939 computers use ddr400 or even ddr333 memory... yet it isn't that much of a bottleneck anyways...
 
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ADE said:
Well, i mean some GPU's run faster and need the faster MHz to transfer the data fast enough to make the system run optimal right? If the GPU transfers the data at a speed of 1000Mhz and you have a CPU that only can take a buss speed of 400MHz, what will be the end result? You would not utilize the full extent of the GPU right?
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If I'm right, the core/memory speed of the video card dont effect anything else. It's the memory bandwidth thats used to transfer data from the GPU to the CPU, and other parts. So by having a higher memory clock, theres more bandwidth, but I dont think it's affected by the bus speed.
 
Oh, hay that's what always bugged me. I think one of the dual GPU that geforce makes from EVGA has one that runs at 1Ghz. But look at the C2D, the buss speed can get to 1000+MHz right? or maybe I'm wrong, but then it would utilize the full capability of its bandwidth.
 
ADE said:
Oh, hay that's what always bugged me. I think one of the dual GPU that geforce makes from EVGA has one that runs at 1Ghz. But look at the C2D, the buss speed can get to 1000+MHz right? or maybe I'm wrong, but then it would utilize the full capability of its bandwidth.
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No no no, you are missing the point. The GPU speed and the bus speed have absolutely nothing to do with each other. Your GPU could be 33MHz and your bus 2000Mhz, for all it matters. Or vice versa.
 
Only bus speed that would affect the GPU's performance would be the PCI, AGP or PCI-E bus speed. Which are default 33MHz, 66MHz and 100MHz respectively, if I remember correctly.
 
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