By: Jan Wassenberg (jan.wassenberg.delete@this.gmail.com), May 22, 2022 5:53 am
Room: Moderated Discussions
Michael S (already5chosen.delete@this.yahoo.com) on May 22, 2022 5:12 am wrote:
> Let's do back-of-envelop math.
> 4K*60p ~= 500 Mpixel/s. Ignoring color for sake of brevity it means ~500,000 32x32 blocks per second.
Ignoring color means we're off by a factor of 3.
And IDCT (I assume your FLOP count is accurate, not sure) is perhaps ~1/4 the total, so we're concluding it would be fine without SIMD if your CPU were 12x as fast. OK :)
> Let's do back-of-envelop math.
> 4K*60p ~= 500 Mpixel/s. Ignoring color for sake of brevity it means ~500,000 32x32 blocks per second.
Ignoring color means we're off by a factor of 3.
And IDCT (I assume your FLOP count is accurate, not sure) is perhaps ~1/4 the total, so we're concluding it would be fine without SIMD if your CPU were 12x as fast. OK :)