4 ms·
> on the Xbox Series X we found the same test marginally faster when we scheduled work for SMT too. This makes sense, the Series X has GDDR RAM, and so has sub
by kijiki 2y ago
> on the Xbox Series X we found the same test marginally faster when we scheduled work for SMT too.
This makes sense, the Series X has GDDR RAM, and so has substantially worse latency than DDR/LPDDR. SMT can help cover that latency, and the higher GDDR bandwidth mitigates the higher memory bandwidth needed to feed both threads.