It has been a crazy year, lots of leaks and info mostly coming through unknown Twitter accounts. Today we can add to that as alleged specifications of the GeForce RTX 3070 and RTX 3080 have surfaced.
Of course, you’ll need to take a ton disclaimers in mind, and huge grains of salt. But history has proven over and over again, that there often is validity (at least to some degree) to be found in these leaks. So here we go.
On both Asia based mydrivers and on a twitter account from ‘KittyCorgi’ info has appeared on two new NVIDIA GPUs, allegedly Ampere based. Two GPU models are named, GA103 GPU (RTX 3080) which would get 60 SMs (Streaming Multiprocessors aka shader core clusters) and then there is a mention of GA104 with 48 of them (RTX 3070). The GPU IDs would be reversed, we know, again rumors. If you multiply the clusters with 64-shader procs each then you’d see 3840 Shader processors and 3072 shaders processors respectively. The leak mentions a 320-bit bus for RTX 3080, which would mean a 10GB memory configuration.
| GPU | SMs | Cores | Memory Size | Memory Bus | SKUs |
|---|---|---|---|---|---|
| Ampere GA103 | 60 | 3840 | 10/20GB GDDR6 | 320-bit | RTX 3080 |
| Ampere GA104 | 48 | 3072 | 8/16GB GDDR6 | 256-bit | RTX 3070 |
| Turing TU102 | 72 | 4608 | 24 GB GDDR6 | 384-bit | TITAN RTX/2080 Ti |
Rumors are that at GDC in march we’ll see the first announcements on Ampere architecture (if it’ll be called Ampere). KittyCorgi also drew up some block diagrams, obviously based on existing models. See attached.
Source: MyDrivers, KittyCorgi, Videocardz.
