In the unlikely scenario that you’re running at PCIe 3.0 x8 on an X570 or B550 motherboard, there is a performance hit, particularly to the 1% low performance, where we see up to an 11% drop in frame rate at 1440p, though typically we’re looking at more like a 7% dip in performance.ĭespite being a very visually impressive game, Shadow of the Tomb Raider doesn’t eat up a lot of PCIe bandwidth and as a result we see virtually no change in performance, even when going from PCIe 3.0 x8 bandwidth right up to PCIe 4.0 x16 bandwidth.
#PCIE WATTS 2.0 VS 3.0 GPU FULL#
Starting with Death Stranding we see no real difference in performance between PCIe 4.0 and 3.0 when running at full bandwidth in the x16 mode. Ryzen 9 3950X PCI 3.0 vs PCIe 4.0 Benchmarks In both instances we’re using 32GB of DDR4-3200 CL14 memory and the graphics card of choice is the RTX 3080 Founders Edition.įor all practical purposes, we’ll skip the talk about the PCI Express bus, the bandwidth available at each mode or anything of the sort since we’ve gone over that previously, we’ll assume you already know the details and we’re mostly concerned about the numbers, so let’s get to it. We’ll be looking at many different PCI Express configurations using the Ryzen 9 3950X on the X570 platform using MSI’s X570 Unify motherboard, as well as the Intel Core i9-10900K on the Z490 platform using MSI’s Z490 Unify. Still we had planned to take a more in-depth look at PCIe performance with the RTX 3080, so that’s what we’re going to do today. We took a very brief look at this in our day one review and found at most we were looking at just a 3% uplift, which honestly adds up to very little. We suspected there may be a small performance advantage with high-end parts such as the RTX 30 when using PCIe 4.0 over 3.0, something like a ~5% uplift. Recently we’ve been discussing PCI Express 4.0 and the role it plays with the new GeForce 30 series.
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