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Using dedicated physx card on pci-e 2.0 x1?
Jul 8, 2013, 4:34 AM
Hi what are the potential bottlenecks of using a gt640 as dedicated physx card in pci-e 2.0 with x1 bandwidth? Would you recommend it?
My motherboard is a asus p8h61-m pro and i would be using a gtx 770 as my main gpu in the pci-e 2.0 x16 slot.
Jul 8, 2013
Jul 8, 2013
dedicated physx card pci
Jul 8, 2013, 4:47 AM
you need a 4x port to run i never see anyone using a graphic card on 1x pci-e
Jul 8, 2013, 5:03 AM
So will it work? If so what would be the bottleneck if used only as a dedicated physx card?
GTX 650 PhysX on PCI-E 2.0 x1
Question about using a PCI-E x1 NIC in a PIC-E 2.0 x16 slot.
graphics card on pcie 2.0 x1 slot
Will the PCIe x1 slots still be usable if a card is in a PCIe 2.0 x4 slot?
Will a PCI-E x1 card work in a PCI-E 2.0 x1 slot
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Jul 8, 2013, 5:17 AM
Erhmm it's a good question. I found this old benchmark showing that dedicated physX on a PCIe isn't that bad in performance drop
Have no idea how that would look like in a up to date benchmark.
Jul 8, 2013, 11:21 AM
You might be able to draw some conclusions from this chart. There isn't a lot of information on the topic. You will lose out on some performance with the x1 PCIe slot, but it's hard to say how much.
Jul 8, 2013, 11:25 AM
A link to the page with the chart shown above by Mahisse. It looks like there isn't any real major drawback to using the x1 slot. Be sure you actually play some GPU-accelerated PhysX games before you even attempt to set it up.
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