5600XT pcie3 vs pcie4

Question

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

15
Snorkle25:windows: 3700X/RTX 2070S/32GB DDR4 •

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.

5
NebraskaGeekR7 1700, GTX 1070, 32 GB 3000MHZ•

Graphics cards will not see a benefit from pcie Gen 4. Even the most powerful cards on the market barely saturate a pcie Gen 3 interface. When you are talking about budget cards, you could probably chuck them on a pcie Gen 2.0 interface and see at most a 5% performance penalty. At the moment the only mainstream consumer product that really uses Gen 4 is nvme storage.

3
FragrantLunatic•

ur misinformed. see u/baconborn 's post
edit: you are correct but this statement is wrong

Graphics cards will not see a benefit from pcie Gen 4.

and i'm not advocating that someone should get a x570 in order to benefit from a 5500 xt 4gb

u/strokan if what you can afford is only a 5500 xt then buy that. 5500 xt 4gb are few and far between. Out of 16-20 5500 xt models, maybe four are 4gb, with basically no price difference

1
strokanOPr5 3600 | EVGA 1660 SUPER | 16GB 3200 CL16•

I ended up getting 1660 super bdcause the store didnt have a 5600xt.. plan on upgrading on black friday / boxing day. Thanks for the help tho!

1
baconborni9-9900K | EVGA RTX 2080Ti XC•

5500XT did not have improved performance with PCIe 4.0. The 5500XT is a shit card and the PCIe 4.0 pipe was better at compensating for it when the frame buffer was forced to overflow into system memory. In no way is the a good thing and had the 5500XT had a more appropriate amount of memory onboard, it would ultimately run better than overflowing to system memory through PCIe pipe.

1