4870 at x8

477 Views 6 Replies 7 Participants Last post by sLowEnd, Nov 27, 2009

Rewindlabs

Discussion Starter · Nov 27, 2009

Can anyone comment on running PCIE 2.0 x8 on my GPU?

I have my single GPU in the third slot ATM since the fourth blocks my boards power/reset buttons and the 2nd is a bit close to the CPU intake....my GPU puts out ALOT of heat on the rear of the PCB so the farther from my cpu/cpu hsf the better

Anyways does anyone think i will have a big bottleneck at PCIE 2.0 x8?

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wiggy2k7

· #2 · Nov 27, 2009

no, should be fine

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D3TH.GRUNT

· #3 · Nov 27, 2009

i know that 4870's dont run full x16 (2.0) bandwidth, and seeing how x8 (2.0) is about the same as x16 (1.0) then all should be fine. If any though, i might say 1%, and that is nothing.

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pioneerisloud

· #4 · Nov 27, 2009

It'll work just fine. Won't "bottleneck" your card in the slightest as your card can't fully utilize PCIe 2.0 x16 anyway.

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rico2001

· #5 · Nov 27, 2009

Only the 4800 X2 cards see less than 1% up to 11% decrease in performance, depending on the game title. The 4800 single gpu cards see no decrease in performance at 8X.

http://www.overclock.net/ati/553511-...ks-hooray.html

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fencefeet

· #6 · Nov 27, 2009

you should be just fine. a 4870 won't completely saturate an x8 lane anyways. the only cards that really need something like that would be more modern dual gpu cards.

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sLowEnd

· #7 · Nov 27, 2009

PCI-e 2.0 x8 = PCI-e 1.x x16

You are fine

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