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Tri-fire/Quad-fire 7970's pcie 2.0 vs 3.0?

post #1 of 6
Thread Starter 
Anyone stumbled over Pcie 2.0 vs 3.0 benchmarks with Tri-fire or Quad-fire 7970's ? been searching like mad, but still can't find any benchmarks?
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post #2 of 6
Its around 0-3% fps , depending on the application.

In other words NO DIFFERENCE.

Money is better spent elsewhere.
http://www.techpowerup.com/157253/PCI-Express-3.0-Has-Zero-Performance-Incentive-for-Radeon-HD-7970-Tests.html


and this is on a high card btw
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by finalturismo View Post

Its around 0-3% fps , depending on the application.
In other words NO DIFFERENCE.
Money is better spent elsewhere.
http://www.techpowerup.com/157253/PCI-Express-3.0-Has-Zero-Performance-Incentive-for-Radeon-HD-7970-Tests.html
and this is on a high card btw

But wouldn't it be more significant with 3 or 4 cards?
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post #4 of 6
Quote:
Originally Posted by finalturismo View Post

Its around 0-3% fps , depending on the application.
In other words NO DIFFERENCE.
Money is better spent elsewhere.
http://www.techpowerup.com/157253/PCI-Express-3.0-Has-Zero-Performance-Incentive-for-Radeon-HD-7970-Tests.html
and this is on a high card btw

but in future gens maybe
post #5 of 6

 

Quote:
Originally Posted by blixt View Post

Anyone stumbled over Pcie 2.0 vs 3.0 benchmarks with Tri-fire or Quad-fire 7970's ? been searching like mad, but still can't find any benchmarks?


There's a recent discussion here post #31

 

If you are running high resolution, there will advantage of PCIe 3.0.

 

PCIe 1.0 x16 = PCIe 2.0 x8 = PCIe 3.0 x4

 

900x600px-LL-dc45537b_Capture.jpeg
 

 

 

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post #6 of 6
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post




There's a recent discussion here post #31

If you are running high resolution, there will advantage of PCIe 3.0.

PCIe 1.0 x16 = PCIe 2.0 x8 = PCIe 3.0 x4
[URL=]900x600px-LL-dc45537b_Capture.jpeg[/URL]

 


Yea i figured, I'm just wondering if i have to get a new cpu/mobo with pcie 3.0 since I'm buying 3 7970's and don't want them to be hugely bottlenecked by 8x/16x/16x Pcie 2.0 only using one monitor @ 2560x1440
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Corsair AX1200 Cooler Master HAF X 
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