5600XT pcie3 vs pcie4
I was wondering after it came out that pcie4 actually improved the 5500xt performances in certain situations, would the 5600xt see significant gain from a pcie4 as well? Iirc the gain was due to larger memory bandwidth on pci4 for the lower memory cards and where the 5600xt is 6gig it may not be the case. Basically deciding between tla b450 and an x570 for an upcoming build
Posted Jan 24, 2020, 12:38 PM UTC
If I remember correctly, the 5500 xt only benefited from pcie gen 4 because of a pretty stupid limitation of the card.
The GPU was limited to only 8 lanes of bandwidth where as most GPU'S can use up to 16. And since pcie gen 4 is twice the bandwith of gen 3 the 5500 xt gets effectively double the bandwith at gen 4 vs gen 3.
This is actually pretty dumb considering which the card is marketed towards as most people buying it are not going to shell out the extra for a x570 board and they real shouldn't anyways as that same extra $ could have just got them a better GPU.