August 9, 2022

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Geeks Disappointed that RTX 4080/4090 doesn’t come with PCIe 5.0

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Geeks Disappointed that RTX 4080/4090 doesn’t come with PCIe 5.0



 

Geeks Disappointed that RTX 4080/4090 doesn’t come with PCIe 5.0

For the RTX 40 series graphics cards, in addition to expecting a substantial increase in performance and best not to increase the price, many people also hope that it will bring some new technology support, such as PCIe 5.0, DP 2.0 interface, etc.

 

However, the latest news given by the whistleblower kopite7kimi poured a pot of cold water. He pointed out that the RTX 40 missed PCIe 5.0 and continued PCIe 4.0.

 

The reason why PCIe 5.0 is rumored is that it will take the lead in adopting the 16-pin external power supply of the Intel ATX 3.0/PCIe 5.0 standard, that is, a single line can carry 600W.

 

From a technical perspective, PCIe 5.0 has a bandwidth of up to 128GB/s, twice that of PCIe 4.0. The released Hopper GPU supports PCIe 5.0, and NVIDIA’s statement can guarantee the release of higher computing performance.

 

Of course, from a practical point of view, even the RTX 30 series graphics card has almost no difference in performance under PCIe 3.0 and 4.0, that is, the graphics card cannot use up such a high theoretical bandwidth. This may explain why RTX 40 finally abandoned PCIe 5.0.

 

In addition, Kopite also pointed out that the Ada Lovelace core of the RTX 40 series has a new FP32 unit structure, which may eventually make the real CUDA number consistent with the previous generation, but the performance is still significantly improved.

 

Geeks Disappointed that RTX 4080/4090 doesn't come with PCIe 5.0

 

 



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