pcie gen3/4

[tysken_02]

wondering if its kills performance to pair my rx6000 and my r5 4500?? since the cpu support gen 3 pcie??

[Eigenvektor]

Which RX 6000 in particular?

 

E.g. RX 6400/6500 XT, yes, because they only have x4 lanes. All of the faster ones, no, because they have at least x8 lanes.

 

Examples:

https://www.techpowerup.com/review/amd-radeon-rx-6500-xt-pci-express-scaling/

 

https://www.techpowerup.com/review/amd-radeon-rx-6600-xt-pci-express-scaling/

[tysken_02]

14 minutes ago, Eigenvektor said:

Which RX 6000 in particular?

 

E.g. RX 6400/6500 XT, yes, because they only have x4 lanes. All of the faster ones, no, because they have at least x8 lanes.

 

Examples:

https://www.techpowerup.com/review/amd-radeon-rx-6500-xt-pci-express-scaling/

 

https://www.techpowerup.com/review/amd-radeon-rx-6600-xt-pci-express-scaling/

the powercolor 

 

[tysken_02]

13 minutes ago, 8tg said:

Yes but not super severely, it depends a lot on the game too and mainly it’s use of video memory from what testing shows.

In more demanding current titles you will see on average a 10-15% framerate drop going to pcie 3.0, and pretty poor 1% lows indicating stutter.

Older titles or less memory dependent ones, the performance loss is negligible.

 

edit: thought you said specifically the 6600

for the 6600 the above applies, for the 6400/6500 the above is even worse, and even older titles will show a pretty large performance hit 

thank you very much, will keep a open eye for a newer cpu (zen3)

[Eigenvektor]

22 minutes ago, tysken_02 said:

the powercolor

That's a manufacturer, not a model. There are multiple models offered by Powercolor, same as any other manufacturer.

 

They offer from the absolute low end (RX 6400): https://www.powercolor.com/products?id=1492658578&type=1639445513

to the absolute high end (RX 6950 XT): https://www.powercolor.com/product?id=1647998252

and everything in between

 

Higher end cards typically have very little performance loss from PCIe 3.0