Tom's Hardware > Forum > Graphic & Displays > Graphics Cards > will pci-e 2.0 vga card work on pci-e mainboard?

will pci-e 2.0 vga card work on pci-e mainboard?

Forum Graphic & Displays : Graphics Cards - will pci-e 2.0 vga card work on pci-e mainboard?

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ykyagami   08-05-2008 at 12:07:29 PM

can i use a pci-e 2.0 vga card onto a motherboard with only pci-e (without 2.0)?? will they work just as fine?

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evongugg   08-05-2008 at 03:45:52 PM
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PCI-Express 1.1 has not been saturated yet. We have PCI-Express 2.0 which is underutilized.

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outlw6669   08-05-2008 at 03:53:12 PM
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Yes.
PCIe 2.0 is fully backwards compatible with PCIe 1.1.

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ykyagami   08-06-2008 at 12:58:03 PM
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then what's the different between using pcie 2.0 vga card on pcie 2.0 & pcie 1.1 motherboard??

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outlw6669   08-06-2008 at 01:05:51 PM
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With the current generation of GPU's, there will be little to no difference.
Newer cards may show a larger impact when they need to transfer larger amounts of data across the bus.

For some quick benchmarks on the matter, check out Tom's PCIe 2.0 test.
As PCIe 2.0 has double the bandwidth of PCIe 1.1, keep an eye on the 8x PCIe results.
When compared to the 16x results, it will show how much performance you will loose going from PCIe 2.0 to PCIe 1.1.


Message edited by outlw6669 on 08-06-2008 at 01:06:31 PM
------------------------------ If the automobile had followed the same development cycle as the computer, a Rolls-Royce today would cost $100, get a million miles to the gallon, and explode once a year, killing everyone inside.
PSA
 Reply to outlw6669
The_Abyss   08-06-2008 at 03:00:58 PM
- 0 +

Just make sure you don't have an old pcie 1.0 motherboard - there are very few out there. That could be a slight limiter on performance.

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