



Like a submarine with a screen door, there does not appear to be a way of containing all of the leaks associated with NVIDIA's upcoming Ampere GPU as we march increasingly closer to a formal launch. The latest round of unsubstantiated claims suggest NVIDIA will launch two Ampere GPUs at the outset, including one that will power its GeForce RTX 3080 graphics card, and another for the GeForce RTX 3070.





We have been hearing about Ampere for a long time now. It is widely assumed Ampere will represent a shift in manufacturing to a 7-nanometer node, as AMD has done with its Navi GPU architecture . Generally speaking, denser nodes lend themselves to better power efficiency, with faster clockspeeds and improved performance often associated with die shrinks.







According to MyDrivers , the beefier of the two Ampere GPUs is GA103, which will consist of 60 streaming multiprocessors (SMs) and 3,840 CUDA cores. It will underpin the GeForce RTX 3080 with 10GB or 20GB of GDDR6 memory and a 320-bit memory bus. There is no mention of the memory speed, though 16Gbps is certainly possible, if not likely. Assuming that's the case, we would be looking at 640GB of memory bandwidth.





The GeForce RTX 3070, meanwhile, is said to be powered by a GA104 GPU with 48 SMs, 3,072 CUDA cores, and 8GB or 16GB of GDDR6 memory pushing data through a 256-bit memory bus. If it ends up being 16Gbps memory as well, we would be looking at 512GB/s of memory bandwidth for that card.







A new presence on Twitter (KittyCorgi) echoed the specifications in a recent tweet, for whatever that might be worth. The user also posted some block diagrams. Here's a look...

NVIDIA GA103:

60 SM , 320-bit

10GB/20GB Graphics Memory

NVIDIA GA104:

48 SM , 256-bit

8GB/16GB Graphics Memory pic.twitter.com/IaQt6mtQ4b — KittyCorgi (@CorgiKitty) January 17, 2020

According to KittyCorgi, Ampere will deliver the following...