PCIE 4.0

[Rito101]

so i found myself in the dire need of more PCIE 3.0 lanes when i was researching a new build that i'm planning to do because there arent enough PCIE lanes for 1 GPU / 2 NVME drives and a Capture Card 

 

Do you think we will get PCIE 4.0 on the Next Platform of Intel/Amd ? i read many rumors saying that the 7 nm Zen would Bring PCIE 4.0 but since theyre going to still use the same AM4 Socket for their 7nm i took these rumors with a huge Pinch of Salt, as for intel i hope they compensate the disappointingly over-hyped 9th gen with PCIE 4.0 on their 10nm ice lake

 

so what do you guys think about this subject ? are you in need of more Lanes ?

[Lurick]

NVMe and Capture cards should pull from the PCH chipset while the GPU will pull direct from the CPU so there should be plenty of lanes.

[Turretgaming]

you could always use more lanes but yes the rumor is that AMDs next 7nm platform hopefully on am4 will have pcie 4.0 intel hasn't had any rumors like it to my knowledge

[Guest]

PCIe 4 is going to take a while, Intel just released their platform, and AMD will too within 6 months. And I haven't heard AMD say anything about it, so it's going to take some time I think. But it does exist already:

https://www.tomshardware.com/news/pcie-4.0-5.0-pci-sig-adata,37276.html

[Rito101]

Just now, timl132 said:

PCIe 4 is going to take a while, Intel just released their platform, and AMD will too within 6 months. And I haven't heard AMD say anything about it, so it's going to take some time I think. But it does exist already:

https://www.tomshardware.com/news/pcie-4.0-5.0-pci-sig-adata,37276.html

AMD already confirmed that theyre going to be early adopters of PCIE 4.0 as well as all the rumors flying around saying that 7nm zen would have it too

[Guest]

Just now, Rito101 said:

AMD already confirmed that theyre going to be early adopters of PCIE 4.0 as well as all the rumors flying around saying that 7nm zen would have it too

Really? That's very very quick.

[Turretgaming]

PCIE for all is some thing the intel line up has never heard of still running only 16 lanes. amd is a little better using 20 but id like to see 24 lanes as the norm for the mainstream platform as nvme takes off and gpus using all the band width now with the 2080ti see gamernexus testing that on titan v and 2080ti

[Turretgaming]

Just now, timl132 said:

Really? That's very very quick.

gotta beat intel in more than price to performance 

[Guest]

Just now, Turretgaming said:

gotta beat intel in more than price to performance 

Well, performance is probably going to be better with zen 2, so Intel has to get more then a little more performance for double the price. I think AMD is quite comfortable and happy right now.

[Pixel5]

i dont see why PCI-e 4.0 would get fast adoption, there is currently nothing out there beside GPU´s that needs more than the bandwidth of 4 lanes.

People that need more lanes could always go for threadripper and be happy with their 64 lanes.

 

The thing is that there are very little people would need these 64 lanes, i mean you could easily run

two cards with 16x

two more with 8x

a NVME SSD raid both with 4x

and add a 10Gbit NIC for good measure 

 

all while you still have the 4x the chipset uses for all the SATA ports.

[cj09beira]

22 minutes ago, Lurick said:

NVMe and Capture cards should pull from the PCH chipset while the GPU will pull direct from the CPU so there should be plenty of lanes.

depending on dmi 3.0 is a bad idea, it has very little bandwidth and if he wants a steady stream  capture its not the best plan what so ever.

 

having pcie 4.0 on am4 shouldn't be hard as pcie devices can work with slower revisions just fine, and hopefully amd will take the oportunity to improve the chipset, as right now its a bit lacking, as its running on 8x pcie 2.0 i think, moving that to pcie 4.0 would be great or even just to 4x 4.0 and leave the rest to more nvme and onther things.

we could even see pcie 4.0 working on x470 (for cpu lanes only) though that will depend on how well designed the traces are as usually higher frequency traces are more prone to integrity issues 

[Rito101]

1 minute ago, Pixel5 said:

i dont see why PCI-e 4.0 would get fast adoption, there is currently nothing out there beside GPU´s that needs more than the bandwidth of 4 lanes.

People that need more lanes could always go for threadripper and be happy with their 64 lanes.

 

The thing is that there are very little people would need these 64 lanes, i mean you could easily run

two cards with 16x

two more with 8x

a NVME SSD raid both with 4x

and add a 10Gbit NIC for good measure 

 

all while you still have the 4x the chipset uses for all the SATA ports.

yeah threadripper has the lanes but not everyone have the money for that platform, so having PCIE 4.0 would be very welcomed on mainstream platforms

[cj09beira]

1 minute ago, Pixel5 said:

i dont see why PCI-e 4.0 would get fast adoption, there is currently nothing out there beside GPU´s that needs more than the bandwidth of 4 lanes.

People that need more lanes could always go for threadripper and be happy with their 64 lanes.

 

The thing is that there are very little people would need these 64 lanes, i mean you could easily run

two cards with 16x

two more with 8x

a NVME SSD raid both with 4x

and add a 10Gbit NIC for good measure 

 

all while you still have the 4x the chipset uses for all the SATA ports.

on the consumer side it would be very useful, nvme drives already saturate 4x connections, a single nvme can saturate the chipset connection to the cpu, and soon 5g Ethernet connection will start to become more mainstream which means more bandwidth needed, so for those that want to have a bit more devices but cant go to the king of lanes due to prices it would be a great stopgap 

[Pixel5]

49 minutes ago, Rito101 said:

yeah threadripper has the lanes but not everyone have the money for that platform, so having PCIE 4.0 would be very welcomed on mainstream platforms

threadripper is not really expensive for what you get, the 8 core model costs the same as the 8 core Ryzen but has more PCIE lanes.

44 minutes ago, cj09beira said:

on the consumer side it would be very useful, nvme drives already saturate 4x connections, a single nvme can saturate the chipset connection to the cpu, and soon 5g Ethernet connection will start to become more mainstream which means more bandwidth needed, so for those that want to have a bit more devices but cant go to the king of lanes due to prices it would be a great stopgap 

 

there are barely any NVME drives that saturate 4x connections at this time, even Samsung 970 Pros only do 3500 mb/s which gives it another 500mb/s before the connection becomes a bottleneck.

 

the only thing i agree n that would need the bandwidth is Ethernet but then you could also just use an 8x port and have no problems again.