Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Feature Requests => [Max] Resolved Feature Requests => Topic started by: SaY on 2017-09-19, 02:49:51

Title: Option to turn off AVX?
Post by: SaY on 2017-09-19, 02:49:51

Does the AVX really brings significant render speed improvement to offset 15-20% lower turbo boost frequency on most Intel CPUs?
Would it be possible to turn the AVX off somehow?
Thank you!

Title: Re: Option to turn off AVX?
Post by: Juraj on 2017-09-19, 03:16:41

I asked this year ago :- ) At that time the answer was 'not easy'. Still curious, would be interesting to compare if the result would be positive. After all it's Intel who claims the net result is faster despite the lower clocks, which is kinda unfair for those with solid cooling (unless the chip would melt).

Title: Re: Option to turn off AVX?
Post by: SaY on 2017-09-19, 05:14:14

I hope maybe now its easier. All-core frequency on my processors is 2.9GHz in Vray vs 2.6GHz in Corona. 

Title: Re: Option to turn off AVX?
Post by: Ondra on 2017-09-19, 09:01:35

short version: microsoft injects AVX automatically in their runtimes, which we do not distribute, so it is really not easy or downright impossible...