NVIDIA AD102 may not support PCIe 5.0 interface

It was reported a few days ago that Nvidia has started testing the AD102 with the Ada Lovelace architecture. It is said that the GPU will have up to 144 groups of SMs, that is, 18,432 CUDA cores, with 24GB of GDDR6X memory, a bit width of 384 bits, a speed of 24 Gbps, and is manufactured using TSMC’s 5nm process node. The net-gen graphics card uses the 12+4Pin new 12VHPWR power supply interface, and the power consumption will reach 600W or more. The AD102 is rumored to have a core clock of 2.2 GHz and can deliver 81 TFLOPs of computing performance (FP32).
Nvidia Lovelace GPU architecture

At present, the Intel Alder Lake platform already supports PCIe 5.0. AMD is about to launch the Ryzen 7000 series based on the Zen 4 architecture. The new generation of processors codenamed Raphael will use the new AM5 socket (LGA 1718) and should also support PCIe 5.0. It is also a matter of course for the graphics card with huge data demand to adopt the new interface.

However, Twitter user @kopite7kimi revealed that the Nvidia AD102 used in the high-end GeForce RTX 40 series still only supports PCIe 4.0 and will not support PCIe 5.0. This news is a bit surprising, after all, Nvidia launched its Hopper architecture GPU for data centers last month that already supports PCIe 5.0. In addition, it is rumored that the FP32 core structure of the Ada Lovelace architecture may not be as simple as the Ampere architecture, and the number of CUDA cores has yet to be confirmed.
I believe that Nvidia will leave the details of the Ada Lovelace architecture GPU to the last minute, due to structural changes, many of Nvidia’s partners were unsure of the exact number of FP32 cores, resulting in erroneous information in product descriptions that took some time to correct.