According to a recent update, GeForce RTX 40 graphics cards will not get PCIe 5.0 support, unlike Radeon RX 7000 adapters. But Nvidia cards will have another advantage.
According to the source, Ada Lovelace generation GPUs will be manufactured by TSMC using 4nm (4N) process technology, while Navi 3x GPUs are reportedly expected to be five-nanometer.
Considering that the Hopper GPUs, which Nvidia introduced just recently, are also produced according to 4 nm norms, the information looks credible. However, it should be noted that the TSMC 4N process is only a slightly improved version of the 5N, so we should not expect any dramatic differences. But given all the data about the incredible power consumption of GeForce RTX 40, any improvement in energy efficiency for Nvidia will be very important.