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Question Handbrake 1.3.3 - Benchmark your System - New benchmark criteria

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Arni90

Junior Member
Apr 7, 2021
6
9
36
Just want to confirm the score you posted was using AVX512 at 4.8 effective clock?
I have set an AVX512 offset of 4, and the all core boost was 52x, that should give 4.8 GHz during AVX512.
Two cores have a maximum multiplier of 54x, so they might run at 50x in AVX512?
I haven't really tested AVX512 offset extensively, I just set the offset to prevent an instant shutdown if I end up running programs with AVX512 (and it actually works, I can run Linpack just fine)

I don't think Handbrake's H.265 encoder makes use of AVX512, HWiNFO reported all cores to run at 5.2 GHz pretty much all the time during the run as you can see.

and using 346W at the socket!
Those 346W are just for the CPU die, there's a decent amount of power lost in the power plane, LGA1200 socket, and VRM at 200A current draw. Even in a high-end board like the Maximus XIII Hero
 
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CakeMonster

Golden Member
Nov 22, 2012
1,013
93
91
5900X on Asus X570-E. No CPU OC whatsoever.
RAM: 2x16Gb 3600MHz @ CR1 16-16-16-36 (44-320)

Average Effective Clock during encoding: 3502MHz

encoded 1806 frames in 186.14s (9.70 fps), 11820.04 kb/s, Avg QP:29.09
 

Hulk

Platinum Member
Oct 9, 1999
2,982
421
126
I have set an AVX512 offset of 4, and the all core boost was 52x, that should give 4.8 GHz during AVX512.
Two cores have a maximum multiplier of 54x, so they might run at 50x in AVX512?
I haven't really tested AVX512 offset extensively, I just set the offset to prevent an instant shutdown if I end up running programs with AVX512 (and it actually works, I can run Linpack just fine)

I don't think Handbrake's H.265 encoder makes use of AVX512, HWiNFO reported all cores to run at 5.2 GHz pretty much all the time during the run as you can see.


Those 346W are just for the CPU die, there's a decent amount of power lost in the power plane, LGA1200 socket, and VRM at 200A current draw. Even in a high-end board like the Maximus XIII Hero
In order to enable AVX512 support in Handbrake you have to put "asm=avx512" in the advanced section of the video tab. It is disabled by default. Did you do that?

Your effective clock was reported at 4815. That is obtained by HWinfo as it constantly polls the clock of each core to find the actual average clock across all cores.
 

Arni90

Junior Member
Apr 7, 2021
6
9
36
In order to enable AVX512 support in Handbrake you have to put "asm=avx512" in the advanced section of the video tab. It is disabled by default. Did you do that?

Your effective clock was reported at 4815. That is obtained by HWinfo as it constantly polls the clock of each core to find the actual average clock across all cores.
I didn't in the previous run

I tried it now, and stability failed. However, all core 51x with AVX512 offset to -4 worked perfectly fine, that translated to
2 cores at 50x
4 cores at 49x
2 cores at 48x
So the AVX512 offset works on each core's maximum multiplier.

Anyway, log output now:
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
...
encoded 1806 frames in 215.48s (8.38 fps), 11820.04 kb/s, Avg QP:29.09


In other words: AVX512 improved performance very slightly
 

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Hulk

Platinum Member
Oct 9, 1999
2,982
421
126
And just for comparison, a run at 5.1 GHz with plain AVX2:

encoded 1806 frames in 224.04s (8.06 fps), 11820.04 kb/s, Avg QP:29.09

As you can see from power usage and temperatures, this is quite a bit more efficient.
For non-AVX512 I left your original scores since it was faster and made a separate chart for AVX512 scores. Compute efficiency increased about 7.9% with AVX512 enabled on your rig.
 
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brinstar117

Senior member
Mar 28, 2001
952
3
81
I have another result, this time with a stock 8700k with default DDR4-2133 speed and timings and again with XMP DDR4-3600 speed and timings. Got a performance boost of about 9%. I only changed it by applying XMP settings on my Asus ROG Strix Z370-I.

I'm not sure if it changed any CPU settings as the 2nd run with the XMP settings seems to have about a 125MHz higher average CPU clockspeed. Though that alone would not have accounted for the performance boost.

I kind of want to try a Core 2 era system but I don't want to babysit it to grab a screenshot right at the end. I think it might take an hour or so to complete.

First result:

Intel Core i7-8700K Coffee Lake
16GB DDR4-2133 CL15-15-15-36
encoded 1806 frames in 429.08s (4.21 fps), 11820.04 kb/s, Avg QP:29.09
Average Effective Clock 4049 MHz
Average CPU Usage 96.9%

8700k handbrake DDR4-2133-15.png

8700k handbrake DDR4-2133-15 log.PNG

Second Result:

Intel Core i7-8700K Coffee Lake
16GB DDR4-3600 CL18-22-22-42
encoded 1806 frames in 393.74s (4.59 fps), 11820.04 kb/s, Avg QP:29.09
Average Effective Clock 4174.8 MHz
Average CPU Usage 96.8%

8700k handbrake DDR4-3600-18.png

8700k handbrake DDR4-3600-18 log.PNG
 

brinstar117

Senior member
Mar 28, 2001
952
3
81
I tried my LGA 771 to 775 modded Intel Xeon X5460 (equivalent to a Core 2 Quad QX9750 Yorkfield). The results were a little better than I was expecting but not by much. I threw in a few CPU-Z benchmarks at the end. Modern CPUs are about twice as fast in single threaded performance.

Intel Xeon X5460 3.17 GHz quad-core Harpertown
16GB DDR2-800 CL5-5-5-15 (4x4GB G.Skill F2-6400CL5-4GBPQ)
encoded 1806 frames in 2358.71s (0.77 fps), 11820.04 kb/s, Avg QP:29.09
Average Effective Clock 3133.2 MHz
Average CPU Usage 99.4%

Xeon X5460.png

Handbrake Log.PNG

Xeon X5460 single threaded bench.PNG
 

ch33zw1z

Lifer
Nov 4, 2004
32,498
11,237
146
Gave this a shot on my 3700X (no OC)


From the Logged output:

encoded 1806 frames in 313.10s (5.77 fps), 11820.04 kb/s, Avg QP:29.09

1618582027861.png
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
101,374
5,375
126
5900HS
encoded 1806 frames in 318.68s (5.67 fps), 11820.04 kb/s, Avg QP:29.09
3482.4 mhz avg with 90.4% usage
16 GB DDR4 3200 22/22/22 (ugh lets see if we can get that a bit faster) (edit: no laptops lol)
 
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