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4870 at x8

477 Views 6 Replies 7 Participants Last post by  sLowEnd
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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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.
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.
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.

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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