C-Ray

This is a test of C-Ray, a simple multi-threaded raytracer designed to test the floating-point CPU performance.

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

Project Site

nuclear.mutantstargoat.com

Source Repository

github.com

Test Created

6 December 2010

Last Updated

27 April 2024

Test Maintainer

Michael Larabel

Test Type

Processor

Average Install Time

3 Seconds

Average Run Time

23 Seconds

Test Dependencies

C/C++ Compiler Toolchain

Accolades

300k+ Downloads + 40k+ Public Benchmark Results + Recently Updated Test Profile

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 29 April 2024.

Revision History

pts/c-ray-2.0.0 [View Source] Sat, 27 Apr 2024 17:19:51 GMT
Update against C-Ray 2.0 from new repository.

pts/c-ray-1.2.0 [View Source] Sat, 28 Jul 2018 12:25:02 GMT
Increase the ray and image size to be more demanding on newer CPUs.

pts/c-ray-1.1.1 [View Source] Sat, 03 Mar 2018 20:19:56 GMT
Add Windows support.

pts/c-ray-1.1.0 [View Source] Sun, 29 Jan 2012 11:41:52 GMT
Build c-ray directly rather than using its basic makefile.

pts/c-ray-1.0.0 [View Source] Mon, 06 Dec 2010 14:37:43 GMT
Initial import into OpenBenchmarking.org

Suites Using This Test

C/C++ Compiler Tests

Multi-Core

Raytracing

CPU Massive

Creator Workloads

Server CPU Tests

Renderers

Performance Metrics

Analyze Test Configuration:

C-Ray 2.0

Resolution: 1080p - Rays Per Pixel: 16

OpenBenchmarking.org metrics for this test profile configuration based on 50 public results since 27 April 2024 with the latest data as of 4 May 2024.

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

Seconds (Average)

2 x Intel Xeon Max 9480

97th

AMD Ryzen Threadripper 7980X 64-Cores

89th

2 x AMD EPYC 7303 16-Core

77th

Mid-Tier

75th

> 22

AMD Ryzen 9 7950X 16-Core

65th

AMD EPYC 7551 32-Core

57th

AMD Ryzen 9 7900 12-Core

51st

Median

50th

AMD Ryzen 7 7840HS

45th

AMD Ryzen 5 7600 6-Core

35th

75 ^{+/- 1}

Intel Core Ultra 7 155H

31st

77 ^{+/- 3}

AMD Ryzen 7 PRO 6850U

27th

105

Low-Tier

25th

> 105

Intel Core i7-1280P

17th

120

AMD Ryzen 7 PRO 5850U

9th

124

Intel Core i7-8565U

3rd

272 ^{+/- 1}

Based on OpenBenchmarking.org data, the selected test / test configuration (C-Ray 2.0 - Resolution: 1080p - Rays Per Pixel: 16) has an average run-time of 3 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.

Notable Instruction Set Usage

Notable instruction set extensions supported by this test, based on an automatic analysis by the Phoronix Test Suite / OpenBenchmarking.org analytics engine.

Instruction Set

Support

Instructions Detected

SSE2 (SSE2)

Used by default on supported hardware.

CVTSI2SD DIVSD SUBSD MULSD CVTTSD2SI ADDSD MOVD UCOMISD SQRTSD MOVAPD XORPD COMISD MAXSD UNPCKLPD MOVUPD MULPD ADDPD MOVDQU CMPNLTSD ANDPD ANDNPD ORPD MINSD SUBPD MOVHPD MOVLPD UNPCKHPD DIVPD CVTSD2SS CVTSS2SD MOVDQA

Advanced Vector Extensions (AVX)

Requires passing a supported compiler/build flag (verified with targets: sandybridge, skylake, tigerlake, cascadelake, sapphirerapids, alderlake, znver2, znver3).
Found on Intel processors since Sandy Bridge (2011).
Found on AMD processors since Bulldozer (2011).

VINSERTF128 VZEROUPPER VEXTRACTF128 VPERMILPD VBROADCASTSD

Advanced Vector Extensions 2 (AVX2)

Requires passing a supported compiler/build flag (verified with targets: skylake, tigerlake, cascadelake, sapphirerapids, alderlake, znver2, znver3).
Found on Intel processors since Haswell (2013).
Found on AMD processors since Excavator (2016).

VPERMPD

FMA (FMA)

VFMADD231SD VFMADD132SD VFNMSUB132SD VFNMADD132SD VFMSUB231SD VFMADD132PD VFMADD231PD VFNMSUB231SD VFNMADD231SD VFMSUB132SD VFNMADD132PD

The test / benchmark does honor compiler flag changes.

Last automated analysis: 17 January 2022

This test profile binary relies on the shared libraries libm.so.6, libc.so.6.

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)

Ubuntu EPYC Zen 3 2 Systems - 432 Benchmark Results	2 x AMD EPYC 7303 16-Core - AMD DAYTONA_X - AMD Starship Ubuntu 22.04 - 6.5.0-28-generic - GNOME Shell 42.9
new dc 2 Systems - 43 Benchmark Results	Intel Core i7-1280P - MSI Prestige 14Evo A12M MS-14C6 - Intel Alder Lake PCH Ubuntu 23.10 - 6.7.0-060700-generic - GNOME Shell 45.2
new dc 2 Systems - 43 Benchmark Results	Intel Core i7-1280P - MSI Prestige 14Evo A12M MS-14C6 - Intel Alder Lake PCH Ubuntu 23.10 - 6.7.0-060700-generic - GNOME Shell 45.2
frame 3 Systems - 34 Benchmark Results	AMD Ryzen 7 7840HS - Framework Laptop 16 - AMD Device 14e8 Ubuntu 24.04 - 6.8.0-22-generic - GNOME Shell 46.0
Ubuntu EPYC Zen 3 1 System - 432 Benchmark Results	2 x AMD EPYC 7303 16-Core - AMD DAYTONA_X - AMD Starship Ubuntu 22.04 - 5.15.0-47-generic - GNOME Shell 42.9
Mantic vs Mantic -fno-omit-framepointer 8 Systems - 185 Benchmark Results	2 x AMD Ryzen 9 7950X 16-Core - QEMU Standard PC - Intel 82G33 Ubuntu 23.10 - 6.5.0-9-generic - X Server 1.21.1.7
LAPTOP TESTS 8 Systems - 185 Benchmark Results	2 x Intel Xeon Gold 6430 - Dell PowerEdge R760 030NDG - Intel Device 1bce Ubuntu 23.10 - 6.5.0-9-generic - GCC 13.2.0
Linux 6.9 Intel Meteor Lake 1 System - 316 Benchmark Results	Intel Core Ultra 7 155H - MTL Swift SFG14-72T Coral_MTH - Intel Device 7e7f Ubuntu 23.10 - 6.8.0-060800-generic - GNOME Shell 45.2
epyc 7551 ne 3 Systems - 34 Benchmark Results	AMD EPYC 7551 32-Core - GIGABYTE MZ31-AR0-00 v01010101 - AMD 17h Debian 12 - 6.1.0-10-amd64 - GCC 12.2.0
pentium-iii-600 1 System - 5 Benchmark Results	Intel Pentium III - Award Software - Intel 82815 815 and MCH + LPC Debian 12 - 6.1.0-15-686-pae - GCC 12.2.0
pentium-ii-400 1 System - 7 Benchmark Results	Intel Pentium II - Award Software 4.51 PG - Intel 440BX Debian 12 - 6.1.0-15-686-pae - GCC 12.2.0
dkdkd 3 Systems - 34 Benchmark Results	AMD Ryzen 7 PRO 6850U - LENOVO ThinkPad X13 Gen 3 21CM0001US - AMD 17h-19h PCIe Root Complex Fedora Linux 39 - 6.5.7-300.fc39.x86_64 - GNOME Shell 45.0
kdkd 3 Systems - 34 Benchmark Results	AMD Ryzen 7 PRO 5850U - LENOVO ThinkPad T14s Gen 2a 20XF004WUS - AMD Renoir Fedora Linux 39 - 6.5.8-300.fc39.x86_64 - GNOME Shell 45.0
kddd 4 Systems - 18 Benchmark Results	AMD Ryzen 9 7950X 16-Core - ASUS ROG STRIX X670E-E GAMING WIFI - AMD Device 14d8 Ubuntu 24.04 - 6.8.0-31-generic - GNOME Shell 46.0
c-ray 2.0 new 4 Systems - 3 Benchmark Results	AMD Ryzen Threadripper 7980X 64-Cores - System76 Thelio Major - AMD Device 14a4 Fedora Linux 40 - 6.8.5-301.fc40.x86_64 - GNOME Shell 46.1

epyc 7551 ne 3 Systems - 34 Benchmark Results	AMD EPYC 7551 32-Core - GIGABYTE MZ31-AR0-00 v01010101 - AMD 17h Debian 12 - 6.1.0-10-amd64 - GCC 12.2.0
Linux 6.9 Intel Meteor Lake 1 System - 316 Benchmark Results	Intel Core Ultra 7 155H - MTL Swift SFG14-72T Coral_MTH - Intel Device 7e7f Ubuntu 23.10 - 6.8.0-060800-generic - GNOME Shell 45.2
Ubuntu EPYC Zen 3 1 System - 432 Benchmark Results	2 x AMD EPYC 7303 16-Core - AMD DAYTONA_X - AMD Starship Ubuntu 22.04 - 5.15.0-47-generic - GNOME Shell 42.9
frame 3 Systems - 34 Benchmark Results	AMD Ryzen 7 7840HS - Framework Laptop 16 - AMD Device 14e8 Ubuntu 24.04 - 6.8.0-22-generic - GNOME Shell 46.0
dkdkd 3 Systems - 34 Benchmark Results	AMD Ryzen 7 PRO 6850U - LENOVO ThinkPad X13 Gen 3 21CM0001US - AMD 17h-19h PCIe Root Complex Fedora Linux 39 - 6.5.7-300.fc39.x86_64 - GNOME Shell 45.0
new dc 2 Systems - 43 Benchmark Results	Intel Core i7-1280P - MSI Prestige 14Evo A12M MS-14C6 - Intel Alder Lake PCH Ubuntu 23.10 - 6.7.0-060700-generic - GNOME Shell 45.2
c-ray 2.0 new 4 Systems - 3 Benchmark Results	AMD Ryzen Threadripper 7980X 64-Cores - System76 Thelio Major - AMD Device 14a4 Fedora Linux 40 - 6.8.5-301.fc40.x86_64 - GNOME Shell 46.1
kddd 4 Systems - 18 Benchmark Results	AMD Ryzen 9 7950X 16-Core - ASUS ROG STRIX X670E-E GAMING WIFI - AMD Device 14d8 Ubuntu 24.04 - 6.8.0-31-generic - GNOME Shell 46.0
kdkd 3 Systems - 34 Benchmark Results	AMD Ryzen 7 PRO 5850U - LENOVO ThinkPad T14s Gen 2a 20XF004WUS - AMD Renoir Fedora Linux 39 - 6.5.8-300.fc39.x86_64 - GNOME Shell 45.0
new dc 2 Systems - 43 Benchmark Results	Intel Core i7-1280P - MSI Prestige 14Evo A12M MS-14C6 - Intel Alder Lake PCH Ubuntu 23.10 - 6.7.0-060700-generic - GNOME Shell 45.2
Linux 6.9 Intel Meteor Lake Featured Kernel Comparison	Intel Core Ultra 7 155H - MTL Swift SFG14-72T Coral_MTH - Intel Device 7e7f Ubuntu 23.10 - 6.8.0-060800-generic - GNOME Shell 45.2
Ubuntu EPYC Zen 3 2 Systems - 432 Benchmark Results	2 x AMD EPYC 7303 16-Core - AMD DAYTONA_X - AMD Starship Ubuntu 22.04 - 6.5.0-28-generic - GNOME Shell 42.9
Pop OS Kernels Linux 6.8 2 Systems - 206 Benchmark Results	AMD Ryzen Threadripper 3990X 64-Core - Gigabyte TRX40 AORUS PRO WIFI - AMD Starship Pop 22.04 - 6.6.6-76060606-generic - GNOME Shell 42.5