PCIE 4.0

[cmptech]

I got my news from the awesome hardware video above.

 

I'm planning to upgrade around november this year; platform change to ryzen. However, I came across news of "PCIE 4.0" coming later this year. Do you think I should wait until it gets implemented in motherboards? Will PCIE 3.0 still be good enough in the following years? I'm thinking that even if new graphics cards come out that are PCIE 4.0 enabled, they will still be backwards compatible with PCIE 3.0.  My use case for the computer is primarily gaming and day to day office works, (spreadsheets, presentations).

 

Here are the things that are telling me to hold back with the platform chage

a. PCIE 4.0 will become the new standard, and I want my PC to last for quite a while. My current PC was built in 2011 (and finished upgrading in 2013), around this time, both PCIE 3.0 and DDR3 were still early in their life cycle.

b. PCIE 4.0 will have supply 300watts out of the bus as opposed to the 75watts of PCIE 3.0. Graphics cards might be designed around this and eliminate the power connectors.

 

Now, here are the things that tell me it's ok to upgrade

a. PCIE 3.0 x8 x8  (for two graphics cards in SLI or Crossfire) is not yet saturated by the latest graphics cards (correct me if I am wrong, I think saw a Gamers Nexus article about this but I just cannot find it right now).

b. If for some reason PCIE 3.0 x8 x8 is bottlenecking the next few generations of graphics cards, then I will just use a single high end GPU for PCIE 3.0 x16.

c. I do not see myself using NVME ssd's in heavily in the near future. Perhaps only 1 drive max.

 

What are your thoughts on this?

[Jurrunio]

Graphics cards dont get performance increase when PCIe moved from 2.0 to 3.0, so 4.0 wont bring performance increase anyway.

 

Also, do use SATA SSDs as boot drive. NVMe drives are more gimmick than useful unless you have a large capacity one, but SATA ones are nearly mandatory.

[NrKj105]

you dont need to wait unless you want to wait a year more for a gpu that will take benefits of pcie 4

[minibois]

At this moment it doesn't seem like a higher bandwidth PCIE will affect GPU performance directly, because of the high bandwidth already present in PCIE 3.0. Those extra functions you mentioned (like more power over the PCIE port) will really be the only things you will get extra.

 

Also, keep in mind it usually takes some time before the CPU's support the newest PCI version. Intel supported it on their 3rd gen CPU's (2012), but AMD released their first platform that supported it, little under a year ago.

[BubblyCharizard]

Many cards won't even bottleneck at pcie 2.0 speeds, so no need to wait until 4.0 comes out

[cmptech]

Ah, yes. AMD's AM3 platform used PCIE 2.0 until I think motherboard manufacturers found a work around in order to implement PCIE 3.0