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Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > [Solved] PCI-E 3.0 Graphics cards on PCI-E 2.0 mobo

[Solved] PCI-E 3.0 Graphics cards on PCI-E 2.0 mobo

Forum Graphic & Displays : Graphics Cards [Solved] PCI-E 3.0 Graphics cards on PCI-E 2.0 mobo

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Firzenizer   02-08-2012 at 02:32:11 PM

I was just looking at new nvidia Kepler cards and I was wondering if there will be any problems running those new 6xx-series cards on PCI-E 2.0 as they are made for 3.0. I have read some articles and stuff and I am pretty confident that there is no problem but just wanted a confirmation :P

As far as I know those cards wont exceed the 16GB/s bandwidth maximum that is maximum for 2.0 afaik. But would there be any other problems?

and the mobo I have is Asus P8P67 Deluxe :P
http://www.asus.com/Motherboards/I [...] /#overview

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vrumor   02-08-2012 at 02:53:34 PM

Running a 7970 on pci-e 2.0 without a hitch.

------------------------------ 1090T 3.75 ghz | ASUS M5A99X | G Skill Ripjaws X 8gb 1600 | 2x 120 gb Mushkin Chronos Deluxe SSD (Raid 0) | 3 x WD 640gb BE (Raid 0) | 1xXFX Black Edition R7970 1xMSI R7970 1125/1575 stock voltage | Hanns-G 28 inch 1920x1200
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vrumor   02-14-2012 at 12:38:56 PM

You do realize that the 7970 is pci-e 3.0 as well right? Yes itll work.

Message quoted 1 times
------------------------------ 1090T 3.75 ghz | ASUS M5A99X | G Skill Ripjaws X 8gb 1600 | 2x 120 gb Mushkin Chronos Deluxe SSD (Raid 0) | 3 x WD 640gb BE (Raid 0) | 1xXFX Black Edition R7970 1xMSI R7970 1125/1575 stock voltage | Hanns-G 28 inch 1920x1200
 Reply to vrumor
Firzenizer   02-14-2012 at 12:42:11 PM

vrumor wrote :

You do realize that the 7970 is pci-e 3.0 as well right? Yes itll work.


I already know, that it works, but the question was will there be any problems with it such as memory bandwidth is not enough or something.

I do know that I can put 5 horse power motor on a car but the car won't go very fast.

Reply to Firzenizer
vrumor   02-14-2012 at 01:01:38 PM

I believe that a pci-e 3.0 card will not saturate the bus completely. There have been tests that have been discussed here on this board. I cant recall them exactly but the general jist is that 3.0 isnt much different than 2.0 right now.

------------------------------ 1090T 3.75 ghz | ASUS M5A99X | G Skill Ripjaws X 8gb 1600 | 2x 120 gb Mushkin Chronos Deluxe SSD (Raid 0) | 3 x WD 640gb BE (Raid 0) | 1xXFX Black Edition R7970 1xMSI R7970 1125/1575 stock voltage | Hanns-G 28 inch 1920x1200
 Reply to vrumor
sunnk   02-14-2012 at 01:04:54 PM
Best answer

the pcie 3.0 will work fine on 2.0board

here is the benchmarking and benefits of the pcie 3.0

http://www.overclock.net/t/1188376 [...] comparison

Reply to sunnk
andy_93   02-14-2012 at 10:28:47 PM

I do believe that you will not get true PCI 3.0 performance until the Ivy Bridge cpu comes out anyway which will then be 32x instead of 16x.

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sunnk   02-18-2012 at 09:13:47 AM

thanks for the best answer.:)and goodluck.:)

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