老湯 http://www.tomshardware.com/news/pc...ress,32525.html

PCI-SIG reached out to tell us that the power increase for PCI Express 4.0 will come from secondary connectors and not from the slot directly.
They confirmed that we were initially told incorrect information. We have redacted a short passage from our original article that stated what were originally told, which is that the slot would provide at least 300W, and added clarification:

PCIe 3.0 max power capabilities: 75W from CEM + 225W from supplemental power connectors = 300W total

PCIe 4.0 max power capabilities: TBD
New value “P” = 75W from CEM + (P-75)W from supplemental power connectors.

To ensure optimum max power, it is recommended that card and system implementers refer to the associated PCI Express specifications that include high-power thermal and mechanical guidelines. Implementers should review also refer to the latest versions of the PCI Express x16 Graphics 150W-ATX Specification (including the supplemental power cable) and the PCI Express 225W/300W High Power Card Electromechanical Specification for additional information.

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所以從PCIE插槽取電依然維持75W..

從導電面積來推算就一定是不可能的事 降低顯卡功耗才是王道(改善晶製程體漏電流) :like:

所以 以後的高階顯卡,可以額外安裝 3各8 PING 就對了,POWER至少要600W才夠?

Pro Duo (Released:Apr 26th, 2016)已經是3x 8-pin了. :yeah:

...
樓主標題得改， PCI-E 4.0 供電依舊保持在 75W，
倒也不是說 PCI-E供電不能達到 四、五百瓦，
這部分卡到主機板成本，供電不是問題後續大電流
干擾才是問題，畢竟主機板上零組件密集度很高。
那時候可就不會有廉價主機板。

假設4百瓦，插槽pci-e供電5 Pin 腳就得各分擔約 12V 7A，
感覺尚有危險，估計也得改pin腳供電數。


高耗電量介面卡，額外供電成本較低。