Clpeak is designed to test the peak capabilities of OpenCL devices.

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

Project Site

Test Created

2 February 2016

Last Updated

3 February 2016

Test Maintainer

Michael Larabel 

Test Type


Average Install Time

1 Second

Average Run Time

1 Minute, 21 Seconds

Test Dependencies



30k+ Downloads

Supported Platforms

Public Result Uploads *Reported Installs **Reported Test Completions **Test Profile Page Views ***OpenBenchmarking.orgEventsclpeak Popularity Statisticssystem/clpeak2016.022016.062016.112017.062017.082017.102018.012018.082018.102019.012019.032019.052019.072019.092019.112020.012020.032020.052020.092020.122021.022021.042021.062021.082021.102021.122022.022022.042022.062022.082022.102022.122023.022023.042023.062023.082023.102023.128001600240032004000
* Uploading of benchmark result data to 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 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 3 December 2023.
Single-Precision Float19.3%Kernel Latency18.3%Integer Compute INT23.5%Transfer Bandwidth enqueueReadBuffer11.3%Transfer Bandwidth enqueueWriteBuffer14.1%Double-Precision Double13.4%OpenCL Test Option

Revision History

system/clpeak-1.0.1   [View Source]   Wed, 03 Feb 2016 08:11:19 GMT
add global memory bandwidth test, set LIB to kernel latency result, do not check exit status as sometimes it can report odd value.

system/clpeak-1.0.0   [View Source]   Tue, 02 Feb 2016 12:09:30 GMT
Initial commit of clpeak test profile for OpenCL peaks

Performance Metrics

Analyze Test Configuration:


OpenCL Test: Integer Compute INT metrics for this test profile configuration based on 112 public results since 2 February 2016 with the latest data as of 1 April 2023.

Additional benchmark metrics will come after has collected a sufficient data-set.

OpenBenchmarking.orgDistribution Of Public Results - OpenCL Test: Integer Compute INT112 Results Range From 60 To 15515 GIOPS603706809901300161019202230254028503160347037804090440047105020533056405950626065706880719075007810812084308740905093609670998010290106001091011220115301184012150124601277013080133901370014010143201463014940152501556048121620

Based on data, the selected test / test configuration (clpeak - OpenCL Test: Integer Compute INT) 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.

OpenBenchmarking.orgMinutesTime Required To Complete BenchmarkOpenCL Test: Integer Compute INTRun-Time246810Min: 1 / Avg: 1.87 / Max: 6

Based on public results, the selected test / test configuration has an average standard deviation of 1.1%.

OpenBenchmarking.orgPercent, Fewer Is BetterAverage Deviation Between RunsOpenCL Test: Integer Compute INTDeviation3691215Min: 0 / Avg: 1.06 / Max: 8

Tested CPU Architectures

This benchmark has been successfully tested on the below mentioned architectures. The CPU architectures listed is where successful 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
(Many Processors)