pcie 4.0 for gpu is worthless

[dfsgsfa]

i am just looking back at gpu perf in pcie 3.0 vs 2.0

you only get 10% or less in most cases.

 

so can we conclude gpu dont need that kind of speed?

[Haro]

Pcie 4.0 is useless as of today as no card on the market can saturate it and 3.0 for the matter of fact

Heck 2.0 only just recently got saturated.

[i_build_nanosuits]

no they don't...correct.

[Oshino Shinobu]

The benefit for PCIe 4.0 isn't likely to come from the bandwidth for singe devices, besides a few exceptions. Where it will help is being able to run higher bandwidth devices on fewer lanes, therefore allowing for more devices and expansion overall. 

[gloop]

When did anyone say it was worth it?

[Bombastinator]

It has a single use currently.  It is only for nvme SSDs, and even then it is only for use cases involving frequent extremely large file transfers. Emphasis on currently.  I’ve got a z97 motherboard for a 4770k that has pcie3 on it.  It was an early board for that, but I think it was 2014 or something.   

[Xplo1t]

It will become more important for gaming if they are designed to stream assets real time from storage to the GPU.  Today, we have this model will things are preloaded mostly and then small chunks are accessed.  

[Dr0y]

23 hours ago, Bombastinator said:

It has a single use currently.  It is only for nvme SSDs, and even then it is only for use cases involving frequent extremely large file transfers. Emphasis on currently.  I’ve got a z97 motherboard for a 4770k that has pcie3 on it.  It was an early board for that, but I think it was 2014 or something.   

I have an asus z97-a board and mine only support nvme m.2 pcie 3.0 x2 so that's a bummer and I decided to just get a sata ssd cause at that time the pcie were kinda more expensive than the sata ones. 

 

For some strange reason my rx590 runs by default at pcie 2.0 x16 ... I had to force it to run pcie 3.0 x16 in the bios. 

 

 

 

[Bombastinator]

9 minutes ago, Dr0y said:

I have an asus z97-a board and mine only support nvme m.2 pcie 3.0 x2 so that's a bummer and I decided to just get a sata ssd cause at that time the pcie were kinda more expensive than the sata ones. 

 

For some strange reason my rx590 runs by default at pcie 2.0 x16 ... I had to force it to run pcie 3.0 x16 in the bios. 

 

 

 

Z97 as an over 10 year old design, can’t do Nvme anyway. It just does sata to begin with.

[dfsgsfa]

10 minutes ago, Dr0y said:

have an asus z97-a board and mine only support nvme m.2 pcie 3.0 x2 so that's a bummer and I decided to just get a sata ssd cause at that time the pcie were kinda more expensive than the sata ones. 

 

For some strange reason my rx590 runs by default at pcie 2.0 x16 ... I had to force it to run pcie 3.0 x16 in the bios. 

ssd isnt a big issue if you dont write huge files often, i got ssd running on sata 3gb port, ie half speed on h61 mobo, speed is still acceptable.

 

but for gpu, how did you notice they were on 2.0? you shouldnt feel anything wierd...

[dfsgsfa]

3 minutes ago, Bombastinator said:

14 minutes ago, Dr0y said:

 

 

Z97 as an over 10 year old design

z97 shall be 6th gen intel mobo, 1st gen to introduce m.2

[Bombastinator]

2 minutes ago, dfsgsfa said:

z97 shall be 6th gen intel mobo, 1st gen to introduce m.2

Yep.  I’ve got one in my machine.  It’s got an m.2 port.  It’s sata. M.2 can be Nvme or sata.  Nvme is m.2 M key and sata is m.2 B key

[Dr0y]

 

10 minutes ago, Bombastinator said:

Z97 as an over 10 year old design, can’t do Nvme anyway. It just does sata to begin with.

My board has m.2 socket with M key only, support pcie ssd only.

 

 

 

[Bombastinator]

5 minutes ago, Dr0y said:

 

My board has m.2 socket with M key only, support pcie ssd only.

 

 

 

Interesting.  Now I’m wondering if mine does too.  I looked inside and it looked like B key.  Possible it’s M key I guess.