Page 1 of 1
[x265, 4K] Post your results here!
Posted: Sat Jul 04, 2020 8:06 pm
by XiQui
I have found that x265 4K encoding is a very time consuming task (especially for low end CPUs).
I am more interested in encoding fps for the ultrafast, medium and veryslow x265 presets for 4K videos.
I will start by posting my configuration and results:
CPU: Intel(R) Celeron(R) CPU G1610 @ 2.60GHz
Memory: 8GB DDR3 @ 1333MHz
Encoder: x265 (10-bit)
Settings: CRF 18
Video info: 4096x1708, progressive, 24 fps, YUV 4:2:2 (10-bit)
Results (average fps):
--- ultrafast: 3.09 fps
--- medium: 0.72 fps
--- veryslow: 0.07 fps
Thank you!
Re: [x265, 4K] Post your results here!
Posted: Sat Jul 04, 2020 10:39 pm
by Woodstock
Benchmarks are worthless without some common factors.
What video source? Encode speed is intimately tied to source complexity.
What encode settings? Presets can change from version to version.
Re: [x265, 4K] Post your results here!
Posted: Sat Jul 04, 2020 11:25 pm
by XiQui
Woodstock wrote: ↑Sat Jul 04, 2020 10:39 pm
Benchmarks are worthless without some common factors.
What video source? Encode speed is intimately tied to source complexity.
What encode settings? Presets can change from version to version.
OK, but I just want some results to compare encoding time (in fps), then anything else is not so relevant, I believe.
What I want here is to get some idea of 4K encoding time for different processors/systems for some specific x265 presets (ultrafast, medium and veryslow).
Thank you!
Re: [x265, 4K] Post your results here!
Posted: Sat Jul 04, 2020 11:44 pm
by XiQui
Woodstock wrote: ↑Sat Jul 04, 2020 10:39 pm
...
What encode settings? Presets can change from version to version.
OK, I did not know about this. Presets are as defined in
x265 2.9.
Re: [x265, 4K] Post your results here!
Posted: Sat Jul 04, 2020 11:45 pm
by XiQui
XiQui wrote: ↑Sat Jul 04, 2020 8:06 pm
...
CPU: Intel(R) Celeron(R) CPU G1610 @ 2.60GHz
Memory: 8GB DDR3 @ 1333MHz
Encoder: x265 (10-bit)
Settings: CRF 18
Video info: 4096x1708, progressive, 24 fps, YUV 4:2:2 (10-bit)
Results (
average fps):
---
ultrafast:
3.09 fps
---
medium:
0.72 fps
---
veryslow:
0.07 fps
...
The same system now using a different (and more complex) source:
CPU: Intel(R) Celeron(R) CPU G1610 @ 2.60GHz
Memory: 8GB DDR3 @ 1333MHz
Encoder: x265 (10-bit)
Settings: CRF 18
Video info: 4096x2160, progressive, 24 fps, YUV 4:2:2 (10-bit)
Results (
average fps):
---
ultrafast:
1.67 fps
---
medium:
0.423 fps
---
veryslow:
0.045 fps
Re: [x265, 4K] Post your results here!
Posted: Sat Jul 04, 2020 11:47 pm
by Woodstock
Then start by providing a source that is accessible to anyone who would be participating in the process. A popular one is
Big Buck Bunny, from what I've read.
Re: [x265, 4K] Post your results here!
Posted: Sun Jul 05, 2020 12:01 am
by XiQui
Woodstock wrote: ↑Sat Jul 04, 2020 11:47 pm
Then start by providing a source that is accessible to anyone who would be participating in the process. A popular one is
Big Buck Bunny, from what I've read.
Unfortunately, I cannot use a whole movie for testing because of time constraints (it would take days).
As I already said, I am interested in rough encoding times just to get an idea of how fast/slow 4K encoding is on a specific system.
The source used does not matter much, but if people use a challenging video for the encoder it would be better (detailed and/or high motion seem to be hardest).
Re: [x265, 4K] Post your results here!
Posted: Tue Jul 07, 2020 1:37 pm
by batboy
Mac Pro Late 2013
12 Core Xeon E5-2697 v2
64gb ram
D500 graphics
Encoding UHD rip of Guardians of Galaxy Vol 2
H265 10bit, very slow, CRF18
Very Slow - 0.48 fps