Caporegime
- Joined
- 18 Oct 2002
- Posts
- 30,858
They kinda did to a degree, for a while. Tahiti (7970) and Hawaii(290X) for example had pitcairn (7870) and tonga (285), respectively. Smaller dies (with no double precision) to the larger sibling. Nvidia went bigger sooner with its fp64 and fp32 dies (security from HPC contracts and larger market in any event) while AMD were somewhat conservative in the first fp64/fp32 round (Tahiti and pitcairn) which helped them get to market sooner, only producing what you could call the equivalent to the GK 110 (780) and GK 104 (680) later with Hawaii and tonga which also approximated the performance of the Nvidia like-for-like counterparts.
Since then its Nvidia committing further to the co-development of two lines (Volta GV100 with DP and specialist hardware like its tensor cores, and a scaled-back single precision line for consumer graphics and industry/professional use that doesn't require fp64). AMD haven't brought out a fresh fp64 chip since Hawaii and Vega is actually out fp64'd by Tahiti let alone Hawaii.
Wow, good info to know. Thanks.