RTX 3000 Series PCIe 4.0 Required?

[Alazam]

The specs for the RTX 3000 series cards say PCIe 4.0 so does this mean you can't use them on a motherboard without PCIe 4.0? I have an 8700K and don't want to have to upgrade to a new motherboard and processor already...

[WereCatf]

3 minutes ago, Alazam said:

so does this mean you can't use them on a motherboard without PCIe 4.0?

No, PCIe is backwards-compatible.

[NoobBoi]

It'll work, but you'll lose performance. 

[mail929]

1 minute ago, NoobBoi said:

It'll work, but you'll lose performance. 

We haven't had any benchmarking so nothing can be said for sure. However, I wouldn't expect most applications - particularly games - to require the PCIe bandwidth of gen 4.

[Dedayog]

19 minutes ago, NoobBoi said:

It'll work, but you'll lose performance. 

Seriously doubt this, as only the 2080Ti saturates the PCIe 3.0 8x pipe when going SLI.  Nowhere near the limits of PCIe 3.0 16x are being touched.

[BTGbullseye]

25 minutes ago, mail929 said:

However, I wouldn't expect most applications - particularly games - to require the PCIe bandwidth of gen 4.

 

7 minutes ago, Dedayog said:

Seriously doubt this, as only the 2080Ti saturates the PCIe 3.0 8x pipe when going SLI.  Nowhere near the limits of PCIe 3.0 16x are being touched.

Actually, according to the presentation, it will likely greatly affect load times in games since it sends the textures/etc. directly to the GPU for decoding, rather than into the CPU and system RAM.

[Dedayog]

2 minutes ago, BTGbullseye said:

 

Actually, according to the presentation, it will likely greatly affect load times in games since it sends the textures/etc. directly to the GPU for decoding, rather than into the CPU and system RAM.

Interesting.  Didn't see the presentation.  Load times or actual FPS being affected?

[BTGbullseye]

2 minutes ago, Dedayog said:

Interesting.  Didn't see the presentation.  Load times or actual FPS being affected?

Load times, possibly FPS if you're doing one of the "no loading screens" games. The presentation is short, and I would recommend watching it.

[Dedayog]

9 minutes ago, BTGbullseye said:

Load times, possibly FPS if you're doing one of the "no loading screens" games. The presentation is short, and I would recommend watching it.

I will.  Only thing I can see would be them saturating the PCIe 3.0 16x pipe, as the access speed of PCIe 4.0 isn't faster if I read correctly.

 

That's a LOT of data being thrown around then.

[xg32]

56 minutes ago, Alazam said:

.

there's no confirmations yet but there's a high chance there will be performance loss using pcie 3.0, zen 3 looks to be optimal for ampere since intel...shat the bed.

 

That said it'll work with the 8700k, we'll find out how much performance is lost before the cards even come out so we can make informed decisions.

[SPCFHT]

wait for benchmarks

 

[GBNokiaaa]

looks like not at all check their video again there is small writing on bootom of screen that they test it on i9 cpu so thats pci 3.0

[Ruboka]

thats interesting, thx for the info, can confirm it
lets wait for the reviews coming in and check the performance difference between 3.0 and 4.0 and hope for the best( i dont want to have to change my mb if i would buy a rtx 3070 )

On 9/2/2020 at 8:15 AM, GBNokiaaa said:

looks like not at all check their video again there is small writing on bootom of screen that they test it on i9 cpu so thats pci 3.0

 

Edited September 3, 2020 by Ruboka
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