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 14 May 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 103 public results since 27 April 2024 with the latest data as of 14 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 AMD EPYC 9684X 96-Core

99th

2 x Intel Xeon Max 9480

96th

AMD Ryzen Threadripper 7980X 64-Cores

92nd

2 x Intel Xeon Platinum 8380

88th

2 x Intel Xeon Platinum 8280

82nd

Mid-Tier

75th

> 22

2 x AMD EPYC 7303 16-Core

74th

2 x Intel Xeon Silver 4316

72nd

AMD Ryzen 9 7950X 16-Core

59th

AMD Ryzen 9 5950X 16-Core

58th

31 ^{+/- 3}

AMD EPYC 7551 32-Core

54th

AMD Ryzen 9 7900 12-Core

51st

Median

50th

AMD Ryzen 7 7840HS

48th

AMD Ryzen 5 7600 6-Core

41st

75 ^{+/- 1}

Intel Core Ultra 7 155H

39th

77 ^{+/- 3}

Intel Core Ultra 7 165U

32nd

AMD Ryzen 7 PRO 6850U

29th

105

Low-Tier

25th

> 120

Intel Core i7-1280P

24th

120

AMD Ryzen 7 PRO 5850U

20th

124

Intel Core i7-8565U

11th

272 ^{+/- 1}

rv64imafdcvsu

3rd

1653 ^{+/- 21}

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 4 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 0.1%.

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)

RISC-V 64-bit

riscv64

rv64imafdcvsu

ARMv8 64-bit

arm64

Apple M1

result/test001.json 1 System - 1 Benchmark Result	Intel Core i5-1038NG7 - Apple MacBook Pro - 2 x 8 GB LPDDR4X-3733MHz macOS 11.3.1 - 20.4.0 - GCC 12.0.5 + Clang 12.0.5
core-i3-4150 1 System - 7 Benchmark Results	Intel Core i3-4150 - HP 1998 - Intel 4th Gen Core DRAM Debian 12 - 6.1.0-18-amd64 - GCC 12.2.0
core-i3-4150 1 System - 5 Benchmark Results	Intel Core i3-4150 - HP 1998 - Intel 4th Gen Core DRAM Debian 12 - 6.1.0-18-amd64 - GCC 12.2.0
test-processor 1 System - 1 Benchmark Result	Intel Core i7-7700HQ - Oracle VirtualBox v1.2 - Intel 440FX 82441FX PMC Ubuntu 22.04 - 6.8.2 - GNOME Shell 42.9
c-ray-1 2 Systems - 3 Benchmark Results	AMD Ryzen 9 5950X 16-Core - AMD Starship - 64GB Debian - 6.8.9-sven - Xfce
new core ultra 2 Systems - 55 Benchmark Results	Intel Core Ultra 7 165U - LENOVO ThinkPad T14 Gen 5 21MLCTO1WW - Intel Device 7e7f Ubuntu 22.04 - 6.5.0-28-generic - GNOME Shell 42.9
Intel Core Ultra 7 165U 1 System - 496 Benchmark Results	Intel Core Ultra 7 165U - LENOVO ThinkPad T14 Gen 5 21MLCTO1WW - Intel Device 7e7f Ubuntu 22.04 - 6.5.0-28-generic - GNOME Shell 42.9
Mac Pro 2013 C ray 1 System - 2 Benchmark Results	Intel Xeon E5-2697 v2 - Apple Mac Pro - 4 x 16 GB DDR3-1866MHz macOS 12.7.3 - 21.6.0 - GCC 14.0.0 + Clang 14.0.0
Mac Mini C-Ray 1 System - 2 Benchmark Results	Apple M1 - Apple Mac mini - 8GB macOS 13.6 - 22.6.0 - GCC 14.0.3 + Clang 14.0.3
c-ray-1 1 System - 3 Benchmark Results	AMD Ryzen 9 5950X 16-Core - AMD Starship - 64GB Debian - 6.8.9-sven - Xfce
c-ray-1 3 Systems - 3 Benchmark Results	AMD Ryzen 9 5950X 16-Core - AMD Starship - 64GB Debian - 6.8.9-sven - Xfce
c-ray-1 2 Systems - 3 Benchmark Results	AMD Ryzen 9 5950X 16-Core - AMD Starship - 64GB Debian - 6.8.9-sven - Xfce
c-ray-1 1 System - 3 Benchmark Results	AMD Ryzen 9 5950X 16-Core - AMD Starship - 64GB Debian - 6.8.9-sven - Xfce
8380 2P new tests 3 Systems - 36 Benchmark Results	2 x AMD EPYC 9684X 96-Core - AMD Titanite_4G - AMD Device 14a4 Ubuntu 24.04 - 6.9.0-060900rc3-generic - GCC 13.2.0
c-ray-result 1 System - 1 Benchmark Result	Hygon C86 7265 24-core - RDO KVM - Intel 440FX 82441FX PMC BigCloud Enterprise Linux 21.10 - 4.19.90-2107.6.0.0100.oe1.bclinux.x86_64 - GCC 7.3.0

new tests ryzen 3 Systems - 34 Benchmark Results	AMD Ryzen 9 7900 12-Core - ASRockRack 1U4LW-B650/2L2T B650D4U-2L2T/BCM - AMD Device 14d8 Ubuntu 24.04 - 6.8.0-31-generic - GNOME Shell 46.0
Scaleway RISC-V 2 Systems - 71 Benchmark Results	rv64imafdcvsu - Scaleway EM-RV1-C4M16S128-A - 16GB Ubuntu 24.04 - 5.10.113+ - GCC 13.2.0
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
8380 2P new tests 2 Systems - 18 Benchmark Results	2 x Intel Xeon Platinum 8380 - Intel M50CYP2SB2U - Intel Ice Lake IEH Ubuntu 24.04 - 6.9.0-060900rc3-generic - GCC 13.2.0
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
Scaleway RISC-V 2 Systems - 70 Benchmark Results	rv64imafdcvsu - Scaleway EM-RV1-C4M16S128-A - 16GB Ubuntu 24.04 - 5.10.113+ - GCC 13.2.0
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
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
kdkd 3 Systems - 33 Benchmark Results	Intel Core i7-8565U - Dell XPS 13 9380 0KTW76 - Intel Cannon Point-LP Ubuntu 23.10 - 6.7.0-060700rc5-generic - GNOME Shell 45.1
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
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
1 Featured Graphics Comparison	Intel Core i5-1235U - (5.26 BIOS) - Intel Alder Lake PCH Ubuntu 22.04 - 6.5.0-28-generic - GNOME Shell 42.9
8380 2P new tests 3 Systems - 18 Benchmark Results	2 x Intel Xeon Platinum 8380 - Intel M50CYP2SB2U - Intel Ice Lake IEH Ubuntu 24.04 - 6.9.0-060900rc3-generic - GCC 13.2.0
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 - 6.9.0-060900rc5daily20240426-generic - GNOME Shell 45.2
Clear Linux 41680 2 Systems - 137 Benchmark Results	Intel Core i9-14900K - ASUS PRIME Z790-P WIFI - Intel Raptor Lake-S PCH Clear Linux OS 41680 - 6.8.9-1432.native - GNOME Shell 46.1