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!
[x265, 4K] Post your results here!
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Re: [x265, 4K] Post your results here!
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.
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!
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!
The same system now using a different (and more complex) source: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
...
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!
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!
Unfortunately, I cannot use a whole movie for testing because of time constraints (it would take days).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.
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!
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
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