[FFmpeg-user] hyperthreading support

Joshua Grauman jnfo at grauman.com
Mon Dec 12 23:14:57 EET 2016

Thanks. Yes, you are right. I was thinking it might have an enhanced 
instruction set. But it's just improved in clock speed, L3 cache, and HT. 
So since I know what the improvement in clock speed looks like, I was 
trying to figure out the other improvements, but you guys answered it all. 


> Am 11.12.2016 um 07:21 schrieb Joshua Grauman:
>>  I am thinking about upgrading my cpu from a Core i5-4690K to a Core
>>  i7-4790K. At the same clock speed, will ffmpeg run faster with the i7?
>>  Does ffmpeg support hyperthreading or other features of the i7?
> there are no other features then HT which are different expect the clock 
> speed - no idea why you are saying "same clock speed" - anyways, HT brings 
> you around 15% and the i7 has larger cches and a higher clock speed combined 
> with HT
> http://lists.ffmpeg.org/pipermail/ffmpeg-user/2011-March/000081.html
> http://ark.intel.com/de/products/80811/Intel-Core-i5-4690K-Processor-6M-Cache-up-to-3_90-GHz
> https://ark.intel.com/de/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz
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