x265

This is a simple test of the x265 encoder run on the CPU with 1080p and 4K options for H.265 video encode performance with x265.

To run this test with the Phoronix Test Suite, the basic command is: phoronix-test-suite benchmark x265.

Project Site

x265.org

Source Repository

bitbucket.org

Test Created

28 July 2018

Last Updated

8 December 2024

Test Maintainer

Michael Larabel

Test Type

Processor

Average Install Time

2 Minutes, 32 Seconds

Average Run Time

56 Seconds

Test Dependencies

C/C++ Compiler Toolchain + 7-Zip / p7zip + CMake + Yasm Assembler

Accolades

60k+ Downloads + 5k+ Public Benchmark Results

Supported Platforms

* 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 17 January 2025.

Revision History

pts/x265-1.5.0 [View Source] Sun, 08 Dec 2024 14:54:18 GMT
Update against x265 v4.1 upstream.

pts/x265-1.4.0 [View Source] Fri, 05 Apr 2024 10:33:11 GMT
Update against x265 3.6 upstream.

pts/x265-1.3.0 [View Source] Fri, 16 Oct 2020 17:48:37 GMT
Update against x265 3.4 upstream, add 1080p/4K video option input.

pts/x265-1.2.0 [View Source] Sun, 08 Sep 2019 18:43:32 GMT
Update against upstream per https://github.com/phoronix-test-suite/test-profiles/pull/99

pts/x265-1.1.0 [View Source] Mon, 04 Feb 2019 12:47:16 GMT
Update against x265 v3.0, also fixes building on POWER9.

pts/x265-1.0.0 [View Source] Sat, 28 Jul 2018 12:09:00 GMT
Finally got around to uploading this x265 video encode test profile.

Suites Using This Test

Video Encoding

C/C++ Compiler Tests

Encoding

Multi-Core

Common Workstation Benchmarks

CPU Massive

Creator Workloads

Server CPU Tests

Performance Metrics

Analyze Test Configuration:

x265 4.1

Video Input: Bosphorus 4K

OpenBenchmarking.org metrics for this test profile configuration based on 127 public results since 8 December 2024 with the latest data as of 13 January 2025.

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)

AMD EPYC 9575F 64-Core

99th

45.6 ^{+/- 0.5}

Intel Core Ultra 9 285K

94th

42.1 ^{+/- 2.0}

AMD Ryzen 9 9950X 16-Core

92nd

41.6 ^{+/- 0.7}

AMD Ryzen Threadripper 7980X 64-Cores

80th

40.7 ^{+/- 0.2}

Mid-Tier

75th

< 39.9

2 x AMD EPYC 9535 64-Core

72nd

37.1 ^{+/- 1.0}

2 x AMD EPYC 9654 96-Core

64th

36.0 ^{+/- 0.2}

2 x AMD EPYC 9684X 96-Core

64th

35.9 ^{+/- 0.1}

2 x AMD EPYC 9175F 16-Core

57th

30.8

2 x AMD EPYC 9124 16-Core

53rd

30.2 ^{+/- 0.6}

Median

50th

27.8

AMD EPYC 4464P 12-Core

50th

27.8 ^{+/- 0.1}

AMD Ryzen 7 9800X3D 8-Core

46th

23.6 ^{+/- 0.3}

AMD Ryzen AI 9 HX 370

40th

20.2 ^{+/- 0.2}

AMD Ryzen AI 9 365

33rd

17.5 ^{+/- 0.2}

AMD EPYC 4364P 8-Core

33rd

17.5 ^{+/- 0.2}

Low-Tier

25th

< 15.0

Intel Core Ultra 7 155H

21st

14.6 ^{+/- 1.3}

ARMv8 Neoverse-N1 128-Core

20th

14.6 ^{+/- 0.1}

Intel Core Ultra 7 256V

14th

14.1 ^{+/- 0.2}

AMD Ryzen 7 7840HS

14th

14.1 ^{+/- 0.4}

ARMv8 Neoverse-V2 72-Core

12th

13.8 ^{+/- 0.1}

Intel Core i7-1280P

8th

13.3 ^{+/- 0.9}

Detailed Performance Overview

Based on OpenBenchmarking.org data, the selected test / test configuration (x265 4.1 - Video Input: Bosphorus 4K) has an average run-time of 2 minutes. By default this test profile is set to run at least 3 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.

Based on public OpenBenchmarking.org results, the selected test / test configuration has an average standard deviation of 0.4%.

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)

ARMv8 64-bit

arm64

Apple M1 Pro, Apple M4, Apple M4 Pro