AMD PCIe 4.0 VS Intel PCIe 3.0 on RTX 3090 or 3080

[Thinkerion]

How will this difference impact the system?

I am going to build a completely new system with either 3080 or 3090, kinda depends what the final retail price will be.

 

However Comet lake only "i9 10850k" supports PCIe 3.0 while the Ryzen 9 3900XT supports PCIe 4.0

Will there be any difference in performance? will the RTX card be nerfed by the PCIe3.0 on the Intel?

 

 

[DailyProcrastinator]

Wait for reviews to come out when these cards are actually commercially available. But there might be some performance advantage with PCIe 4.0 because of the bandwidth. 

[Blademaster91]

I doubt there would be much of a difference with PCI-e 3.0, but wait for reviews.

[soxsure]

I'd say if you want to build a new system anyway, go for the pcie 4.0. For gaming the difference between intel & amd is not worth mentioning, especially at higher resolutions - talking 1440p and upwards

[Thinkerion]

On 9/1/2020 at 10:30 PM, soxsure said:

I'd say if you want to build a new system anyway, go for the pcie 4.0. For gaming the difference between intel & amd is not worth mentioning, especially at higher resolutions - talking 1440p and upwards

I am thinking the same thing, only i'm thinking the choice is between i9-10850k and Ryzen9 3900XT maybee 3900X since the XT is a bit more expensive and perhaps not much of a performance reduction.

[BTGbullseye]

14 minutes ago, Thinkerion said:

I am thinking the same thing, only i'm thinking the choice is between i9-10850k and Ryzen9 3900XT maybee 3900X since the XT is a bit more expensive and perhaps not much of a performance reduction.

The 3800XT is better for gaming, and is significantly less expensive than the 3900.

[Mateyyy]

Quote

Will customers find a performance degradation on PCIE 3.0?

System performance is impacted by many factors and the impact varies between applications. The impact is typically less than a few percent going from a x16 PCIE 4.0 to x16 PCIE 3.0. CPU selection often has a larger impact on performance.We look forward to new platforms that can fully take advantage of Gen4 capabilities for potential performance increases.

https://www.reddit.com/r/nvidia/comments/ilhao8/nvidia_rtx_30series_you_asked_we_answered/

[Thinkerion]

3 hours ago, Mateyyy said:

https://www.reddit.com/r/nvidia/comments/ilhao8/nvidia_rtx_30series_you_asked_we_answered/

So as of now not much of a difference?

I'm kinda reading it like small performance bump so choosing one CPU over the other in the roughly same price range might not be much of a difference..

Thinking that it might level the performance to roughly the same numbers, so that choosing one or the other doesnt matter at all.

 

[Thinkerion]

I am making vlogs and other vids with my son and i will probably be processing some of them after the pc change. would the 3900XT be the best option for that?

[Mateyyy]

2 hours ago, Thinkerion said:

So as of now not much of a difference?

I'm kinda reading it like small performance bump so choosing one CPU over the other in the roughly same price range might not be much of a difference..

Thinking that it might level the performance to roughly the same numbers, so that choosing one or the other doesnt matter at all.

Basically PCIe 4.0 still doesn't really make a difference, so the CPU choice is still more important, as in if you're gaming and you're stuck between the 10600K and 3700X, you should go with the 10600K.

2 hours ago, Thinkerion said:

I am making vlogs and other vids with my son and i will probably be processing some of them after the pc change. would the 3900XT be the best option for that?

If you feel like you need and you can leverage all 24 threads, sure. Though I'd suggest going with the 3900X instead of the XT, as it offers pretty much the same performance while being cheaper.

[Dr0y]

Do you think that the new feature (don't remember what it's called right now) about loading textures straight from the ssd to the gpu would benefit from pcie 4.0 compared to pcie 3.0 ?  If it was like it always used to be like traditional gpu, I don't think that something like the 3080 would have needed that bandwidth advantage of pcie 4.0 but since it will be possible to bypass cpu and system ram maybe that would make a difference. 

 

I didn't have time to read about that feature in detail so forgive me if it's just a bunch of nonsense. 

[Thinkerion]

4 minutes ago, Dr0y said:

Do you think that the new feature (don't remember what it's called right now) about loading textures straight from the ssd to the gpu would benefit from pcie 4.0 compared to pcie 3.0 ?  If it was like it always used to be like traditional gpu, I don't think that something like the 3080 would have needed that bandwidth advantage of pcie 4.0 but since it will be possible to bypass cpu and system ram maybe that would make a difference. 

 

I didn't have time to read about that feature in detail so forgive me if it's just a bunch of nonsense. 

It is mainly because of the bypass function i am thinking it could very well benefit from 4.0 yes. But it is just a presumption.