drkohler on 16 July 2013
| ethomaz said: The talk started because the "14 CUs for graphics + 4 CUs for GPGPU"... he said that's false but the CUs are not 100% round... so the CUs are not equal... that's what I understood. |
That is not what he means. He probably had something similar (or slightly higher) in mind, like 12 or 14 CUs. It would have been enough for 1080p as Forza/MS has shown (every CU more on your die increases tdp and size=costs so both Sony/MS went for minimal die size to get the job done). However, after (probably endless) simulations, he realised that with <=14 CUs, things could get too tight when adding gpgpu tasks. With 18 CUs, simulations showed there is enough raw power to get 1080p done, and have good breathing room for gpgpu stuff running concurrently.
