5700G, X570, and PCIe 4.0

[Ninjanometry]

Pretty simple question I hope... I am about to build a PC for someone who wants integrated graphics as a backup to their dedicated 3060 Ti graphics card so they can still use their PC if their card should fail. I have read that the 5700G itself only supports PCIe 3.0, but that the X570 chipset supports PCIe 4.0 natively. Will the X570 board give them PCIe 4.0 functionality for their 3060 Ti and future GPU upgrades in spite of the CPU not supporting PCIe 4.0, or does the CPU in the system need to support PCIe 4.0 in order for the X570 chipset to do so as well? Does he need to just bite the bullet and go to the 5800X and keep his old GTX 970 around as backup? The preferred configuration is 5700G on X570, so unless PCIe 4.0 functionality is not available in that configuration, other suggested configurations are not really under consideration. Thanks in advance!

[Electronics Wizardy]

PCIe is backwards compatible, so a gen 4 gpu will work fine in any gen 3 board.

 

Id look 10700/10400/11400/11700 as an alternative here. There often cheaper and about the same speed or faster.

[Fasauceome]

Unfortunately, the motherboard will only provide PCIe 4.0 if the CPU does as well.

 

There are other drawbacks to the 5700G too, such as less cache and lower clock speeds than the 5800X, so gaming performance would be affected by those much more than the PCIe 3.0 connect.

 

Although, I believe this generation of APUs is improved from last gen, instead of having only 8x lanes to the GPU it would have a full 16. You really wouldn't be starving for bandwidth on that 3060 ti.

[Ninjanometry]

6 minutes ago, Electronics Wizardy said:

PCIe is backwards compatible, so a gen 4 gpu will work fine in any gen 3 board.

 

Id look 10700/10400/11400/11700 as an alternative here. There often cheaper and about the same speed or faster.

This I was aware of, but I am looking to actually get him get the benefits of PCIe 4 for his 3060 Ti and any upgrades he does going forward.

[Electronics Wizardy]

Just now, Ninjanometry said:

This I was aware of, but I am looking to actually get him get the benefits of PCIe 4 for his 3060 Ti and any upgrades ge does going forward.

There really aren't any benefits to gen 4, the gpus really can't use the performance.

 

Id go 11400/11700 if you want gen 4 support + igpu

[Ninjanometry]

7 minutes ago, Fasauceome said:

Unfortunately, the motherboard will only provide PCIe 4.0 if the CPU does as well.

 

There are other drawbacks to the 5700G too, such as less cache and lower clock speeds than the 5800X, so gaming performance would be affected by those much more than the PCIe 3.0 connect.

So, even though X570 is all PCIe Gen 4, if the CPU says, "nope" it's a nope?

[Helpful Tech Witch]

Just now, Ninjanometry said:

So, even though X570 is all PCIe Gen 4, if the CPU says, "nope" it's a nope?

The cpu does not phisically have the chips for gen 4, so it CANT do gen 4

[Fasauceome]

20 minutes ago, Ninjanometry said:

So, even though X570 is all PCIe Gen 4, if the CPU says, "nope" it's a nope?

In simple terms, yes. Though, it's not a matter of the CPU saying yes or no, rather that it's not physically equipped to handle PCIe 4.0.

 

slightly interesting factoid:

In terms of X570, there are other CPUs that don't offer PCIe 4.0, because X570 is compatible with 2000 series Ryzen CPUs and 3000 series APUs. However, when it comes to B550 and A520, the 5700G and 5600G are the only retail products that offer PCIe 3.0 instead of 4.0.

[Somerandomtechyboi]

37 minutes ago, Ninjanometry said:

Pretty simple question I hope... I am about to build a PC for someone who wants integrated graphics as a backup to their dedicated 3060 Ti graphics card so they can still use their PC if their card should fail. I have read that the 5700G itself only supports PCIe 3.0, but that the X570 chipset supports PCIe 4.0 natively. Will the X570 board give them PCIe 4.0 functionality for their 3060 Ti and future GPU upgrades in spite of the CPU not supporting PCIe 4.0, or does the CPU in the system need to support PCIe 4.0 in order for the X570 chipset to do so as well? Does he need to just bite the bullet and go to the 5800X and keep his old GTX 970 around as backup? The preferred configuration is 5700G on X570, so unless PCIe 4.0 functionality is not available in that configuration, other suggested configurations are not really under consideration. Thanks in advance!

Ditch the x570 for a cheap b550 like the b550a pro or ds3h and maybe upgrade the gpu or something else in the system

 

Couod you show us the parts you have picked for this build for your friend? Might be able to optimize it abit and maybe afford some upgrades

 

Btw go 5800x if you can get the gpu immedeatly

 

 

And pcie gen4 is completely useless to most ppl unless they need a gen4 ssd, and the people that need a gen4 ssd are ppl that regularly transfer massive files such as 4/8k vid so not many ppl will need gen4

 

And there isnt much of a performance hit if you go from gen4 to gen3 so should be fine gpu wise