x264 OpenCL

This is a simple test of the x264 H.264/AVC encoder using OpenCL. If you wish to run the x264 test on the CPU, just use the x264 test profile rather than x264-opencl.

To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark x264-opencl.

Use with caution this test profile is currently marked Deprecated.

Project Site

videolan.org

Test Created

31 August 2014

Last Updated

15 February 2021

Test Maintainer

Michael Larabel 

Test Type

Processor

Average Install Time

18 Seconds

Average Run Time

28 Seconds

Test Dependencies

C/C++ Compiler Toolchain + Yasm Assembler + OpenCL + PERL

Accolades

60k+ Downloads

Supported Platforms


Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsx264 OpenCL Popularity Statisticspts/x264-opencl2014.082014.122015.042015.082015.122016.042016.082016.122017.042017.082017.122018.042018.082018.122019.042019.082019.122020.042020.082020.122021.042021.082021.122022.042022.082022.122023.042023.082023.122024.048001600240032004000
* Uploading of benchmark result data to OpenBenchmarking.org is always optional (opt-in) via the Phoronix Test Suite for users wishing to share their results publicly.
** Data based on those opting to upload their test results to OpenBenchmarking.org and users enabling the opt-in anonymous statistics reporting while running benchmarks from an Internet-connected platform.
*** Test profile page view reporting began March 2021.
Data updated weekly as of 23 April 2024.

Revision History

pts/x264-opencl-1.9.1   [View Source]   Mon, 15 Feb 2021 12:47:31 GMT
Mark as deprecated.

pts/x264-opencl-1.9.0   [View Source]   Sun, 31 Aug 2014 11:15:49 GMT
Initial commit of OpenCL-specific version of x264 encoder. Complementary to x264 test profile and thus start it at x264-opencl-1.9.0 versioning to avoid confusion.


Performance Metrics

Analyze Test Configuration:

x264 OpenCL 2014-08-30

H.264 Video Encoding

OpenBenchmarking.org metrics for this test profile configuration based on 781 public results since 31 August 2014 with the latest data as of 7 December 2022.

Below is an overview of the generalized performance for components where there is sufficient statistically significant data based upon user-uploaded results. It is important to keep in mind particularly in the Linux/open-source space there can be vastly different OS configurations, with this overview intended to offer just general guidance as to the performance expectations.

Component
Percentile Rank
# Compatible Public Results
Frames Per Second (Average)
92nd
3
260 +/- 30
89th
4
201 +/- 28
83rd
43
181 +/- 14
83rd
3
180 +/- 25
81st
3
163 +/- 1
79th
20
152 +/- 13
Mid-Tier
75th
< 133
70th
60
102 +/- 2
Median
50th
61
39th
3
49 +/- 1
Low-Tier
25th
< 33
13th
3
29 +/- 3
OpenBenchmarking.orgDistribution Of Public Results - H.264 Video Encoding781 Results Range From 2 To 705 Frames Per Second229568311013716419121824527229932635338040743446148851554256959662365067770473150100150200250

Based on OpenBenchmarking.org data, the selected test / test configuration (x264 OpenCL 2014-08-30 - H.264 Video Encoding) has an average run-time of 2 minutes. By default this test profile is set to run at least 5 times but may increase if the standard deviation exceeds pre-defined defaults or other calculations deem additional runs necessary for greater statistical accuracy of the result.

OpenBenchmarking.orgMinutesTime Required To Complete BenchmarkH.264 Video EncodingRun-Time246810Min: 1 / Avg: 1.05 / Max: 2

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 1.2%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsH.264 Video EncodingDeviation3691215Min: 0 / Avg: 1.19 / Max: 9

Tested CPU Architectures

This benchmark has been successfully tested on the below mentioned architectures. The CPU architectures listed is where successful OpenBenchmarking.org result uploads occurred, namely for helping to determine if a given test is compatible with various alternative CPU architectures.

CPU Architecture
Kernel Identifier
Verified On
Intel / AMD x86 64-bit
x86_64
(Many Processors)
MIPS 64-bit
mips64
ICT Loongson-3A R3
Intel / AMD x86 32-bit
i686
(Many Processors)
ARMv7 32-bit
armv7l
ARMv7 rev 1 4-Core, ARMv7 rev 10, ARMv7 rev 10 4-Core, ARMv7 rev 3 4-Core, ARMv7 rev 3 8-Core, ARMv7 rev 4 2-Core, ARMv7 rev 4 4-Core, ARMv7 rev 5 4-Core, ARMv7 rev 5 8-Core, Exynos ARMv7 rev 3 8-Core