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PCIe 4.0 may increase the power delivery specification to 300W

PCIe 4.0 may increase the power delivery specification to 300W

PCIe 4.0 may increase the power delivery specification to 300W

PCIe 4.0 may increase the power delivery specification to 300W

 

It seems that PCI-SIG, the Peripheral Component Interconnect Special Interest Group, are planning to increase the power delivery specification from 75W to at least 300W with PCIe 4.0, potentially eliminating the need for future GPUs to require external power. 

PCIe 4.0 will offer 2x the bandwidth of existing PCIe 3.0, offering 16GT/s rather than 8GT/s. This effectively allows PCIe 4.0 devices to offer the same bandwidth as PCIe 3.0 with half of the PCIe lanes and offer double the PCIe bandwidth for PCIe 4.0 x16 devices like future GPUs and other PCIe solutions.  

Right now the PCIe 4.0 specification is set to increase the maximum power delivery ceiling to 300W, though potential limits of 400W and 500W are also being discussed. An increased power limit of 300W could allow even powerful GPUs like the GTX 1080 or GTX Titan X Pascal to be used without external power connections, though these future GPUs would need to be designed with this kind of PCIe power delivery in mind. 

 

PCIe 4.0 devices are being shown off at IDF 2016

  

Right now it looks like the PCIe 4.0 specification will be finalised later this year, meaning that it is unlikely to reach consumer motherboards for quite some time. 

 

You can join the discussion on PCIe 4.0 increasing PCIe power limits to 300W on the OC3D Forums

 

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Most Recent Comments

23-08-2016, 07:16:41

Kushiro
Wow, gotta say I am curious to see how they will manage this if true.Quote

23-08-2016, 08:46:58

Norlig
Wont backwards compatibility with PCI-E 1.0 force them to make GPU's that can only draw 75 watts from the PCI-E ?Quote

23-08-2016, 10:45:48

Greenback
Quote:
Originally Posted by Norlig View Post
Wont backwards compatibility with PCI-E 1.0 force them to make GPU's that can only draw 75 watts from the PCI-E ?

I'd expect the first thing you would see would be GPU's with a switch to pick which method it is to draw power or it will auto detect where the power is coming from, it will be a long time before PCIe 4 becomes the norm once it is releasedQuote

23-08-2016, 11:36:42

ImprovizoR
The less cables I need on the inside the better.Quote

23-08-2016, 12:01:30

NeverBackDown
Yeah I'd rather this not happen. Boards are going to increase in costs like crazy. Going to need more than a 24 pin. Don't forget with all that power running through, if the system doesn't safelyshut down, POP it's gone. I'd also expect boards to die quickly and more oftenQuote
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