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PCI-E Bandwidth

J

Johkyo

Junior Member
I seem to get conflicting answers with this on my own research. Exacty what the bandwidth communication is for 8x.... I believe the Gforce 7950's bandwidth is around 4gb per second? ... is that per card or for the whole sandwich? The 7950's performance in many round ups seem to be less than expectation. Described reasons for this vary from poor/infant drivers, card better at higher resolutions, etc...

1. Does the 7950 benafit from a 16x slot (32x for quad)?

2. I am waiting for a intel, nvidia 590 (new c55 north bridge), 32x SLI. Will this board like unlock the potential of the 7950 quad SLI?


Thanks for your feedback.
 
I don't know

but SLi is bad already and now just to make it worse quad SLi......

I honestly don't get does anyone notice that putting two video cards in SLi/CrossFire is inefficent. Lets think about it here for a moment two cards are going to use more than one and also are going to release more heat. you would think with technlogy they would come up with something better than this. I don't understand why they don't make dual core gpu's.
 
Originally posted by: w00t
I don't know

but SLi is bad already and now just to make it worse quad SLi......

I honestly don't get does anyone notice that putting two video cards in SLi/CrossFire is inefficent. Lets think about it here for a moment two cards are going to use more than one and also are going to release more heat. you would think with technlogy they would come up with something better than this. I don't understand why they don't make dual core gpu's.
Click to expand...

............Dumbass.

BTW the answer is no.
 
I appreciate the answer aeternitas.... would you mind explaining it? I am guessing you mean "no" to all of my questions?

No... the 7950 does not saturate 8x?
... and so.... no, the 7950 will not benafit from (2)16x?
... and so, it is not worth waiting for the intel 590 sli c55 northbridge board?

Just want to undersand.

Thanks!
 
8X is more than enough.

Im not sure if anything for games yet even would saturate a AGP8x. AGP was a one way street though. PCIe is a two way. AGP8x = PCIe 4x roughly in bandwidth.
 
According to this chart at tom's hardware a Single 7900 Geforce is better than a Quad 7950. Must have something to do with the 7900 running at 650MHZ instead of the 500MHZ on the 7950
 
Originally posted by: w00t
I don't know

but SLi is bad already and now just to make it worse quad SLi......

I honestly don't get does anyone notice that putting two video cards in SLi/CrossFire is inefficent. Lets think about it here for a moment two cards are going to use more than one and also are going to release more heat. you would think with technlogy they would come up with something better than this. I don't understand why they don't make dual core gpu's.
Click to expand...

QFT. We had some of this happen on the 6 series of GPU's... but it wasnt cost efficient or comparable to 2 seperate cards.
 
Originally posted by: AgentJean
According to this chart at tom's hardware a Single 7900 Geforce is better than a Quad 7950. Must have something to do with the 7900 running at 650MHZ instead of the 500MHZ on the 7950
Click to expand...


I have been following this. It also shows the same 7900 as better than the 7900 SLI of the same core/mem. I just can't beleive that this is an acurate graph. The forum on Toms about this round-up also seems doubtful that this is acurate data.
 
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