Which processor to encode x265 4K ?

[Nico8583]

Hi
I would like to change my old X6 1090T to encode x265 1080p/4K.
I know Ryzen 3 will be out soon but I don't know if it would be a good value for money choice.
Currently, which processors are good value for money ? Ryzen 7 2700x ? i7 9700k ?
Thank you !

[Groucho2004]

Have a look here (scroll down to "H.265 Media Encoding").

[mariush]

For comparison, your x6 1090t is somewhere around i3-7100 .. Ryzen 3 1200 in those charts on Techpowerup.

[Nico8583]

Thank you, i7 9700k and R7 2700X seem to be very close in performances.
i7 is much expensive and need a CPU cooler but 2700x need a graphic card.

[Nico8583]

Thank you for comparison, so I can expect FPS x 4 with 9700k or 2700X

[RanmaCanada]

I would say wait and see what happens with Ryzen 3000 series after they are released. You've waited this long to upgrade, so seriously, what's another 2-3 weeks (for PROPER reviews). It is highly possible that with their increased IPC that they might catch Intel for x265. And if not, well the Ryzen 2000 series will be a LOT cheaper by then, as AMD does whatever they can to get rid of old stock, where as Intel likes to keep prices on old stock stupidly high.

[Asmodian]

Actually Intel is expected to reduce the prices of their CPUs by up to 15%. Zen2 is too good for them to ignore this time.

It really is not the right time to get a CPU, 2-3 weeks should offer better CPUs per dollar from both AMD and Intel.

[Nico8583]

Yes, you're right both, I'll not buy anything before 2 weeks, but I start to search an alternative if Ryzen 3 are not as good as expected (because if there are discount prices after Ryzen 3 release, I wish to buy immediatly and not thinking if it is a good choice). Now I know 9700K and 2700X are good values.
Thank you !

[hajj_3]

zen 2 supports proper 256bit avx 2 like intel, zen 1 used 2 x 128bit. 256bit AVX2 support increases performance of x265 by quite a bit, maybe 10% or something so i wouldn't buy zen+ if you are going to be doing quite a bit of x265 encoding.

[Atak_Snajpera]

Originally Posted by Nico8583

Yes, you're right both, I'll not buy anything before 2 weeks, but I start to search an alternative if Ryzen 3 are not as good as expected (because if there are discount prices after Ryzen 3 release, I wish to buy immediatly and not thinking if it is a good choice). Now I know 9700K and 2700X are good values.
Thank you !

Zen2 will be much faster than Zen1 due to AVX256! x265 really loves AVX256. That's the main reason why 10C 4GHz Intel is only slightly slower than ThreadRipper 1950x@4GHz.
2990WX has very low fps because of broken windows scheduler.

Just compare those results.

65.0 fps - 2 x Intel Xeon E5-4660 v3 @ 2.9GHz^ ( 14C / 28T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
63.6 fps - Intel Core i9-7920X @ 4.6GHz^ ( 12C / 24T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
54.3 fps - Intel Core i9-7900X @ 4.7GHz^ ( 10C / 20T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
52.5 fps - AMD Threadripper 2990WX @ 3.4GHz ( 32C / 64T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
50.3 fps - AMD Threadripper 1950X @ 4.0GHz^ ( 16C / 32T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
44.6 fps - Intel Core i9-7900X @ 4.0GHz ( 10C / 20T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
43.6 fps - AMD Threadripper 1950X @ 3.4GHz ( 16C / 32T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
36.8 fps - Intel Core i7-8700K @ 5.0GHz^ ( 6C / 12T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
35.3 fps - Intel Core i7-8700K @ 4.9GHz^ ( 6C / 12T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
33.9 fps - Intel Core i7-5960X @ 4.4GHz^ ( 8C / 16T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
31.8 fps - Intel Core i7-8700K @ 4.3GHz ( 6C / 12T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
29.8 fps - Intel Xeon E5-2675 v3 @ 1.8GHz ( 16C / 32T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
25.5 fps - AMD Ryzen 7 1700 @ 3.7GHz^ ( 8C / 16T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
24.8 fps - Intel Core i7-6700K @ 4.8GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
24.3 fps - AMD Ryzen 7 1700 @ 3.5GHz^ ( 8C / 16T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
23.8 fps - Intel Core i5-8400 @ 3.8GHz ( 6C / 6T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
23.7 fps - Intel Core i7-7700K @ 4.8GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
23.3 fps - Intel Core i7-6700K @ 4.7GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
22.6 fps - Intel Core i7-6700K @ 4.5GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
21.6 fps - Intel Core i7-7700K @ 4.4GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
20.6 fps - AMD Ryzen 5 1600 @ 3.8GHz^ ( 6C / 12T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
18.6 fps - Intel Core i7-6600K @ 4.5GHz^ ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
16.4 fps - Intel Xeon E5-2690 @ 2.9GHz ( 8C / 16T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX
15.8 fps - Intel i7-6770HQ @ 2.6GHz ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
15.8 fps - Intel Core i5-4690K @ 4.2GHz^ ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
15.6 fps - Intel Xeon E3 1231 v3 @ 3.4GHz ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
14.7 fps - Intel Xeon E5-2670 @ 2.6GHz ( 8C / 16T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX
14.7 fps - Intel Core i7-3930K @ 3.2GHz ( 6C / 12T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX
14.6 fps - AMD Ryzen 5 2400G @ 4.0GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
13.9 fps - Intel Core i5-7400 @ 3.5GHz ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
13.8 fps - Intel Core i5-6500 @ 3.2GHz ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
13.5 fps - AMD Ryzen 5 1500X @ 3.5GHz ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
13.3 fps - Intel Core i5-4570S @ 3.6GHz^ ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
12.7 fps - 2 x Intel Xeon X5550 @ 3.0GHz ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.1 Cache64 
12.4 fps - AMD Ryzen 5 2200G @ 4.0GHz^ ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
12.1 fps - AMD FX-8320 Eight-Core @ 4.32GHz^ ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA4 FMA3 LZCNT BMI1
12.0 fps - Intel Core i5-4460 @ 3.2GHz ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
11.2 fps - Intel Core i7-3770K @ 3.5GHz ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX
9.7 fps - Intel Core i3-7100 @ 3.9GHz ( 2C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
8.8 fps - AMD Ryzen 3 1300X @ 3.5GHz ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
8.3 fps - Intel Core i5-2400 @ 3.7GHz^ ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX
7.8 fps - Intel i7-3612QM @ 2.1GHz ( 4C / 8T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX 
7.6 fps - Intel Core i7-7500U @ 3.5GHz^ ( 2C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
6.1 fps - Intel Celeron G3900 @ 4.0GHz^ ( 2C / 2T ) MMX2 SSE2Fast SSSE3 SSE4.2 LZCNT
5.9 fps - AMD Athlon X4 760K Quad Core @ 4.5GHz^ ( 2C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA4 FMA3 LZCNT BMI1 
5.6 fps - Intel Pentium G3258 @ 4.2GHz^ ( 2C / 2T ) MMX2 SSE2Fast SSSE3 SSE4.2 LZCNT
5.5 fps - Intel Xeon X5470 @ 3.33GHz ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
4.8 fps - Intel Core i3-3220 @ 3.3GHz ( 2C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX  
4.4 fps - Intel Core2 Quad Q8200 @ 2.8GHz^ ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
4.2 fps - Intel Core i3-2100 @ 3.1GHz ( 2C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX
3.7 fps - Intel Core2 Quad Q8200 @ 2.33GHz ( 4C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
3.6 fps - Intel Core i3-4005U @ 1.7GHz ( 2C / 4T ) MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2 
1.9 fps - AMD Athlon II X4 620 @ 2.6GHz ( 4C / 4T ) MMX2 SSE2Fast LZCNT

[Nico8583]

Thank you !
So the best way to encode x265 is Ryzen 3000 or i7 8700K/9700K(/i9 9900K but too much expensive) ?

[Atak_Snajpera]

Originally Posted by Nico8583

Thank you !
So the best way to encode x265 is Ryzen 3000 or i7 8700K/9700K(/i9 9900K but too much expensive) ?

It is just a matter of your budget. Ryzen 3600 looks good if you OC to 4.5GHz.

[benwaggoner]

Originally Posted by Atak_Snajpera

It is just a matter of your budget. Ryzen 3600 looks good if you OC to 4.5GHz.

Also, doesn't AVX512 help performance with slower presets at 4K resolutions? Optimum processor might differ some based on preset.

Operating costs also factor in, ala pixels per picojoule.

[Atak_Snajpera]

Originally Posted by benwaggoner

Also, doesn't AVX512 help performance with slower presets at 4K resolutions? Optimum processor might differ some based on preset.

Operating costs also factor in, ala pixels per picojoule.

Have you seen 9900k with AVX-512 support recently?

[Asmodian]

The i9-9900X supports AVX-512, not the k.

It is odd that list of benchmarks isn't using AVX-512 on the i9-7900X or anything else, it would be nice to know how much impact it has.

[benwaggoner]

Originally Posted by Asmodian

The i9-9900X supports AVX-512, not the k.

It is odd that list of benchmarks isn't using AVX-512 on the i9-7900X or anything else, it would be nice to know how much impact it has.

I'm not sure. Perhaps because avx512 needs to be explicitly turned on?

I've got my dual Xeon 6140 workstation coming next week (basically a physical EC2 c5.16xlarge), and I can do some benchmarks when it arrives.

And I've got some 8K test sources too, so I can benchmark those with/without. I would expect that the value may go up with resolution, as avx512 is only supposed to become useful at 2160p.

[Blue_MiSfit]

I've got my dual Xeon 6140 workstation coming next week (basically a physical EC2 c5.16xlarge), and I can do some benchmarks when it arrives.

drool...

[Asilurr]

Originally Posted by Atak_Snajpera

Just compare those results.

[...]

I would advise a healthy dose of skepticism whenever you see results without extensive coverage of the testing methodology. Did they use the same hardware reference frame (same memory modules, same SSD)? Did they use the same software version (and contemporary versions of x265 too, not [e.g.] two years old ones)? Did they use the same parameter configuration? Did they use the same content source? Did they test multiple scenarios (i.e. various bit depths, various chroma subsampling types, various resolutions)? Did they use an OS which allows meaningful comparison of highly-threaded CPUs (not repeating the unfortunate case of Threadrippers on Windows)?

[Atak_Snajpera]

Originally Posted by Asilurr

I would advise a healthy dose of skepticism whenever you see results without extensive coverage of the testing methodology. Did they use the same hardware reference frame (same memory modules, same SSD)? Did they use the same software version (and contemporary versions of x265 too, not [e.g.] two years old ones)? Did they use the same parameter configuration? Did they use the same content source? Did they test multiple scenarios (i.e. various bit depths, various chroma subsampling types, various resolutions)? Did they use an OS which allows meaningful comparison of highly-threaded CPUs (not repeating the unfortunate case of Threadrippers on Windows)?

Oh boy! You and your questions...
Dude! Those results come from my benchmark
http://forum.pclab.pl/topic/1184884-x265-FHD-Benchmark/

[NikosD]

Ryzen 3000 will have no clock penalty (aka no performance penalty) leveraging AVX2 instructions according to AMD.

So, it's possible Ryzen 3000 to be a lot faster with heavy use of AVX2 compared to all Intel processors so far, due to no clock restrictions.