Need some info

[Remyv1]

So I am half way through my PC build I have bought gigabyte z390 aorus elite board,corsair 750 watt psu and cooler master liquid cooler and I'm soon going to buy either 9600k or 9700k and lately it got me worried that new nvidia 3000 series is coming out and my board doesnt have pci 4.0? So if I want to run a rtx 3080 do I need to upgrade my board to 10th gen board that supports pci 4.0 or will the card be able to run on my z390. Please someone help me out I am really confused about this as I do want 3080 but I cannot upgrade my board. Thanks 

[fuzz0r]

Don't worry about PCI-e 4.0.

You'll be absolutely fine running the card in a PCI-e 3 slot.

[Shlouski]

Yes it should work fine, planning on upgrading to a 3000 series myself using a gen 3 board.

 

I have seen information suggesting that the 5700xt may sometimes perform a little better on pci 4.0, we will have to wait and see the benchmarks comparing gen 3 and 4, but I don't expect to see much difference.

 

[Remyv1]

But the card being pci 4.0 running on 3.0 board wouldn't it affect the performance of the gpu?

[VeganJoy]

worst case scenario you lose 1-3% performance on a high end card like the 3080. keep in mind that the 2080ti is only capable of saturating x8 lanes of pcie 3.0, it loses very little performance going down to pcie 2.0. unlikely that next gen cards will be able to utilize several times more bandwidth

[Remyv1]

3 hours ago, VeganJoy said:

worst case scenario you lose 1-3% performance on a high end card like the 3080. keep in mind that the 2080ti is only capable of saturating x8 lanes of pcie 3.0, it loses very little performance going down to pcie 2.0. unlikely that next gen cards will be able to utilize several times more bandwidth

So you are saying I will be able to use 3080 on my gigabyte z390 aorus elite with slight performance lose to gpu besides that I will be good? Sorry if I'm asking too much it just got me worried that some people said 3000 series wont support Intel 9th gen and 9th gen boards that is why

[VeganJoy]

Just now, Remyv1 said:

So you are saying I will be able to use 3080 on my gigabyte z390 aorus elite with slight performance lose to gpu besides that I will be good? Sorry if I'm asking too much it just got me worried that some people said 3000 series wont support Intel 9th gen and 9th gen boards that is why

sounds like some people dont understand how gpus work lol, there would be a negligible performance deficit by using a modern card that support pcie 4.0 on pcie 3.0. theyre always backwards compatible and theyre not saturating half of the available bandwidth as it is. you could run a 3080 on some old ass board with pcie 2.0 and bandwidth wouldnt be the biggest issue

[Remyv1]

48 minutes ago, VeganJoy said:

sounds like some people dont understand how gpus work lol, there would be a negligible performance deficit by using a modern card that support pcie 4.0 on pcie 3.0. theyre always backwards compatible and theyre not saturating half of the available bandwidth as it is. you could run a 3080 on some old ass board with pcie 2.0 and bandwidth wouldnt be the biggest issue

And that downside to performance will be on the card itself or on cpu or motherboard 

[VeganJoy]

35 minutes ago, Remyv1 said:

And that downside to performance will be on the card itself or on cpu or motherboard 

uhh, motherboard/gpu technically? its really not that bad lol https://www.techpowerup.com/review/nvidia-geforce-rtx-2080-ti-pci-express-scaling/3.html thats pcie 2.0 vs 3.0, and pcie 2.0 is really old

[Remyv1]

12 minutes ago, VeganJoy said:

uhh, motherboard/gpu technically? its really not that bad lol https://www.techpowerup.com/review/nvidia-geforce-rtx-2080-ti-pci-express-scaling/3.html thats pcie 2.0 vs 3.0, and pcie 2.0 is really old

Okay so this means I can run 3080 on my z390 with slightly downside performance on motherboard/gpu one last thing this downside performance downside will it be harmful in long run?

[VeganJoy]

18 hours ago, Remyv1 said:

Okay so this means I can run 3080 on my z390 with slightly downside performance on motherboard/gpu one last thing this downside performance downside will it be harmful in long run?

yes the difference would be negligible and you could easily offset it by ocing your cpu or something. harmful in the long run? maybe in 5 years when pcie 3.0 is as old as pcie 2.0 is now.