A small OpenCL benchmark program to measure peak GPU/CPU performance.
Works with any GPU in Windows, Linux, macOS and Android.
- compute performance
- benchmarked data types
FP64(double,fma)FP32(float,fma)FP16(half2,fma)INT64(long,a*b+c)INT32(int,a*b+c)INT16(short2,a*b+c)INT8(char4,dp4a)
- closest possible fraction/multiplicator of
measured compute performancedivided byreported theoretical FP32 performanceis shown in(round brackets)- for example when OpenCL reports
19.492 TFLOPs/stheoreticalFP32, and the benchmark measures9.512 TFLOPs/sforFP64, the ratio of(measured FP64)/(theoretical FP32) = 9.512/19.492 = 1/2.05is rounded to the next possible value of1/2and reported as such - these ratios for any GPU/CPU architecture can only be either
1/64,1/32,1/24,1/16,1/12,1/8,1/4,1/3,1/2,2/3,1x,2x,4x,8x,16x,32x,64x, and nothing in between
- for example when OpenCL reports
- benchmarked data types
- memory bandwidth (
coalesced/misalignedread/write) - PCIe bandwidth (
send/receive/bidirectional)- PCIe Gen is estimated based on measured PCIe bandwidth and assumed x16 link width
- Download and install Visual Studio Community. In Visual Studio Installer, add:
- Desktop development with C++
- MSVC v142
- Windows 10 SDK
- Open
OpenCL-Benchmark.slnin Visual Studio Community. - Compile and run by clicking the ► Local Windows Debugger button.
- To run outside of Visual Studio Community, open Windows CMD in the
OpenCL-Benchmarkfolder (typecmdin File Explorer in the directory field and press Enter), then runOpenCL-Benchmark.exe
- Download, compile and run:
git clone https://github.com/ProjectPhysX/OpenCL-Benchmark.git cd OpenCL-Benchmark chmod +x make.sh ./make.sh - Run
bin/OpenCL-Benchmark
- call
bin\OpenCL-Benchmark.exe 0 2 5(Windows) orbin/OpenCL-Benchmark 0 2 5(Linux/macOS) with the number(s) being the device IDs to be benchmarked
|----------------.------------------------------------------------------------|
| Device ID | 0 |
| Device Name | NVIDIA B300 SXM6 AC |
| Device Vendor | NVIDIA Corporation |
| Device Driver | 580.126.09 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 148 at 2032 MHz (18944 cores, 76.988 TFLOPs/s) |
| Memory, Cache | 274113 MB VRAM, 4736 KB global / 48 KB local |
| Buffer Limits | 68528 MB global, 64 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 1.184 TFLOPs/s (1/64) |
| FP32 Compute (float , fma ) 71.452 TFLOPs/s ( 1x ) |
| FP16 Compute (half2 , fma ) 75.201 TFLOPs/s ( 1x ) |
| INT64 Compute (long , a*b+c) 3.714 TIOPs/s (1/24) |
| INT32 Compute (int , a*b+c) 37.736 TIOPs/s (1/2 ) |
| INT16 Compute (short2, a*b+c) 34.592 TIOPs/s (1/2 ) |
| INT8 Compute (char4 , dp4a ) 118.743 TIOPs/s ( 2x ) |
| Memory Bandwidth ( coalesced read ) 6543.01 GB/s |
| Memory Bandwidth ( coalesced write) 6887.38 GB/s |
| Memory Bandwidth (misaligned read ) 2355.50 GB/s |
| Memory Bandwidth (misaligned write) 969.95 GB/s |
| PCIe Bandwidth (send ) 9.86 GB/s |
| PCIe Bandwidth ( receive ) 9.70 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen3 x16) 8.93 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 0 |
| Device Name | NVIDIA B200 |
| Device Vendor | NVIDIA Corporation |
| Device Driver | 570.133.20 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 148 at 1965 MHz (18944 cores, 74.450 TFLOPs/s) |
| Memory, Cache | 182642 MB VRAM, 4736 KB global / 48 KB local |
| Buffer Limits | 45660 MB global, 64 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 34.292 TFLOPs/s (1/2 ) |
| FP32 Compute (float , fma ) 69.464 TFLOPs/s ( 1x ) |
| FP16 Compute (half2 , fma ) 72.909 TFLOPs/s ( 1x ) |
| INT64 Compute (long , a*b+c) 3.704 TIOPs/s (1/24) |
| INT32 Compute (int , a*b+c) 36.508 TIOPs/s (1/2 ) |
| INT16 Compute (short2, a*b+c) 33.597 TIOPs/s (1/2 ) |
| INT8 Compute (char4 , dp4a ) 117.962 TIOPs/s ( 2x ) |
| Memory Bandwidth ( coalesced read ) 6668.71 GB/s |
| Memory Bandwidth ( coalesced write) 6502.72 GB/s |
| Memory Bandwidth (misaligned read ) 2280.05 GB/s |
| Memory Bandwidth (misaligned write) 937.78 GB/s |
| PCIe Bandwidth (send ) 14.08 GB/s |
| PCIe Bandwidth ( receive ) 13.82 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen3 x16) 11.39 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 0 |
| Device Name | Intel(R) Data Center GPU Max 1100 |
| Device Vendor | Intel(R) Corporation |
| Device Driver | 23.43.27642.67 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 448 at 1550 MHz (7168 cores, 22.221 TFLOPs/s) |
| Memory, Cache | 49135 MB VRAM, 196608 KB global / 128 KB local |
| Buffer Limits | 46679 MB global, 47799500 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 15.929 TFLOPs/s (2/3 ) |
| FP32 Compute (float , fma ) 21.934 TFLOPs/s ( 1x ) |
| FP16 Compute (half2 , fma ) 41.497 TFLOPs/s ( 2x ) |
| INT64 Compute (long , a*b+c) 1.083 TIOPs/s (1/24) |
| INT32 Compute (int , a*b+c) 7.043 TIOPs/s (1/3 ) |
| INT16 Compute (short2, a*b+c) 60.469 TIOPs/s ( 2x ) |
| INT8 Compute (char4 , dp4a ) 41.642 TIOPs/s ( 2x ) |
| Memory Bandwidth ( coalesced read ) 737.51 GB/s |
| Memory Bandwidth ( coalesced write) 907.84 GB/s |
| Memory Bandwidth (misaligned read ) 716.65 GB/s |
| Memory Bandwidth (misaligned write) 329.80 GB/s |
| PCIe Bandwidth (send ) 45.92 GB/s |
| PCIe Bandwidth ( receive ) 35.89 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen5 x16) 40.21 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 0 |
| Device Name | AMD Instinct MI355X |
| Device Vendor | Advanced Micro Devices, Inc. |
| Device Driver | 3662.0 (HSA1.1,LC) (Linux) |
| OpenCL Version | OpenCL C 2.0 |
| Compute Units | 256 at 2400 MHz (16384 cores, 78.643 TFLOPs/s) |
| Memory, Cache | 294896 MB VRAM, 32 KB global / 160 KB local |
| Buffer Limits | 294896 MB global, 301973504 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 62.858 TFLOPs/s (2/3 ) |
| FP32 Compute (float , fma ) 138.172 TFLOPs/s ( 2x ) |
| FP16 Compute (half2 , fma ) 143.453 TFLOPs/s ( 2x ) |
| INT64 Compute (long , a*b+c) 7.078 TIOPs/s (1/12) |
| INT32 Compute (int , a*b+c) 38.309 TIOPs/s (1/2 ) |
| INT16 Compute (short2, a*b+c) 89.761 TIOPs/s ( 1x ) |
| INT8 Compute (char4 , dp4a ) 129.780 TIOPs/s ( 2x ) |
| Memory Bandwidth ( coalesced read ) 4903.01 GB/s |
| Memory Bandwidth ( coalesced write) 5438.98 GB/s |
| Memory Bandwidth (misaligned read ) 5473.35 GB/s |
| Memory Bandwidth (misaligned write) 3449.07 GB/s |
| PCIe Bandwidth (send ) 55.16 GB/s |
| PCIe Bandwidth ( receive ) 54.76 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen5 x16) 55.00 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 2 |
| Device Name | NVIDIA TITAN Xp |
| Device Vendor | NVIDIA Corporation |
| Device Driver | 570.133.07 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 30 at 1582 MHz (3840 cores, 12.150 TFLOPs/s) |
| Memory, Cache | 12183 MB VRAM, 1440 KB global / 48 KB local |
| Buffer Limits | 3045 MB global, 64 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 0.440 TFLOPs/s (1/32) |
| FP32 Compute (float , fma ) 13.041 TFLOPs/s ( 1x ) |
| FP16 Compute (half2 , fma ) 0.218 TFLOPs/s (1/64) |
| INT64 Compute (long , a*b+c) 1.437 TIOPs/s (1/8 ) |
| INT32 Compute (int , a*b+c) 4.103 TIOPs/s (1/3 ) |
| INT16 Compute (short2, a*b+c) 10.115 TIOPs/s (2/3 ) |
| INT8 Compute (char4 , dp4a ) 35.237 TIOPs/s ( 2x ) |
| Memory Bandwidth ( coalesced read ) 459.19 GB/s |
| Memory Bandwidth ( coalesced write) 510.59 GB/s |
| Memory Bandwidth (misaligned read ) 144.76 GB/s |
| Memory Bandwidth (misaligned write) 94.71 GB/s |
| PCIe Bandwidth (send ) 6.20 GB/s |
| PCIe Bandwidth ( receive ) 6.71 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen2 x16) 6.37 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 0 |
| Device Name | Intel(R) Arc(TM) B580 Graphics |
| Device Vendor | Intel(R) Corporation |
| Device Driver | 25.18.33578.6 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 160 at 2850 MHz (2560 cores, 14.592 TFLOPs/s) |
| Memory, Cache | 12215 MB VRAM, 18432 KB global / 128 KB local |
| Buffer Limits | 11605 MB global, 11883724 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 0.898 TFLOPs/s (1/16) |
| FP32 Compute (float , fma ) 14.426 TFLOPs/s ( 1x ) |
| FP16 Compute (half2 , fma ) 26.872 TFLOPs/s ( 2x ) |
| INT64 Compute (long , a*b+c) 0.694 TIOPs/s (1/24) |
| INT32 Compute (int , a*b+c) 4.618 TIOPs/s (1/3 ) |
| INT16 Compute (short2, a*b+c) 39.104 TIOPs/s ( 2x ) |
| INT8 Compute (char4 , dp4a ) 48.792 TIOPs/s ( 4x ) |
| Memory Bandwidth ( coalesced read ) 586.30 GB/s |
| Memory Bandwidth ( coalesced write) 473.85 GB/s |
| Memory Bandwidth (misaligned read ) 894.58 GB/s |
| Memory Bandwidth (misaligned write) 398.67 GB/s |
| PCIe Bandwidth (send ) 6.86 GB/s |
| PCIe Bandwidth ( receive ) 7.00 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen2 x16) 6.92 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 4 |
| Device Name | AMD Radeon RX 7700 XT |
| Device Vendor | Advanced Micro Devices, Inc. |
| Device Driver | 3649.0 (HSA1.1,LC) (Linux) |
| OpenCL Version | OpenCL C 2.0 |
| Compute Units | 54 at 2226 MHz (3456 cores, 30.772 TFLOPs/s) |
| Memory, Cache | 12272 MB VRAM, 32 KB global / 64 KB local |
| Buffer Limits | 12272 MB global, 12566528 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 0.570 TFLOPs/s (1/64) |
| FP32 Compute (float , fma ) 17.685 TFLOPs/s (1/2 ) |
| FP16 Compute (half2 , fma ) 33.203 TFLOPs/s ( 1x ) |
| INT64 Compute (long , a*b+c) 2.738 TIOPs/s (1/12) |
| INT32 Compute (int , a*b+c) 3.661 TIOPs/s (1/8 ) |
| INT16 Compute (short2, a*b+c) 16.656 TIOPs/s (1/2 ) |
| INT8 Compute (char4 , dp4a ) 33.060 TIOPs/s ( 1x ) |
| Memory Bandwidth ( coalesced read ) 380.32 GB/s |
| Memory Bandwidth ( coalesced write) 270.47 GB/s |
| Memory Bandwidth (misaligned read ) 414.11 GB/s |
| Memory Bandwidth (misaligned write) 424.22 GB/s |
| PCIe Bandwidth (send ) 13.24 GB/s |
| PCIe Bandwidth ( receive ) 14.22 GB/s |
| PCIe Bandwidth ( bidirectional) (Gen3 x16) 13.69 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 1 |
| Device Name | pthread-0xd4f (Nvidia GH200 Neoverse-V2 CPU) |
| Device Vendor | ARM |
| Device Driver | 1.8 (Linux) |
| OpenCL Version | OpenCL C 1.2 pocl |
| Compute Units | 72 at 3420 MHz (72 cores, 7.880 TFLOPs/s) |
| Memory, Cache | 488252 MB, 116736 KB global / 1024 KB local |
| Buffer Limits | 131072 MB global, 1024 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 0.145 TFLOPs/s (1/64) |
| FP32 Compute (float , fma ) 0.125 TFLOPs/s (1/64) |
| FP16 Compute (half2 , fma ) not supported |
| INT64 Compute (long , a*b+c) 0.370 TIOPs/s (1/24) |
| INT32 Compute (int , a*b+c) 0.241 TIOPs/s (1/32) |
| INT16 Compute (short2, a*b+c) 0.261 TIOPs/s (1/32) |
| INT8 Compute (char4 , dp4a ) 0.567 TIOPs/s (1/16) |
| Memory Bandwidth ( coalesced read ) 183.49 GB/s |
| Memory Bandwidth ( coalesced write) 139.94 GB/s |
| Memory Bandwidth (misaligned read ) 401.96 GB/s |
| Memory Bandwidth (misaligned write) 359.65 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 0 |
| Device Name | Intel(R) Xeon(R) 6960P |
| Device Vendor | Intel(R) Corporation |
| Device Driver | 2025.19.3.0.17_230222 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 288 at 0 MHz (144 cores, 0.000 TFLOPs/s) |
| Memory, Cache | 2321914 MB RAM, 2048 KB global / 256 KB local |
| Buffer Limits | 2321914 MB global, 128 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 7.507 TFLOPs/s (1/64) |
| FP32 Compute (float , fma ) 8.266 TFLOPs/s (1/64) |
| FP16 Compute (half2 , fma ) 12.076 TFLOPs/s (1/64) |
| INT64 Compute (long , a*b+c) 1.549 TIOPs/s (1/64) |
| INT32 Compute (int , a*b+c) 2.770 TIOPs/s (1/64) |
| INT16 Compute (short2, a*b+c) 9.812 TIOPs/s (1/64) |
| INT8 Compute (char4 , dp4a ) 0.407 TIOPs/s (1/64) |
| Memory Bandwidth ( coalesced read ) 167.72 GB/s |
| Memory Bandwidth ( coalesced write) 80.52 GB/s |
| Memory Bandwidth (misaligned read ) 193.66 GB/s |
| Memory Bandwidth (misaligned write) 105.85 GB/s |
|-----------------------------------------------------------------------------|
|----------------.------------------------------------------------------------|
| Device ID | 8 |
| Device Name | AMD EPYC 9654 96-Core Processor |
| Device Vendor | Intel(R) Corporation |
| Device Driver | 2025.19.3.0.17_230222 (Linux) |
| OpenCL Version | OpenCL C 3.0 |
| Compute Units | 176 at 0 MHz (88 cores, 0.000 TFLOPs/s) |
| Memory, Cache | 1461020 MB RAM, 512 KB global / 256 KB local |
| Buffer Limits | 1461020 MB global, 128 KB constant |
|----------------'------------------------------------------------------------|
| Info: OpenCL C code successfully compiled. |
| FP64 Compute (double, fma ) 4.888 TFLOPs/s (1/64) |
| FP32 Compute (float , fma ) 5.153 TFLOPs/s (1/64) |
| FP16 Compute (half2 , fma ) 1.139 TFLOPs/s (1/64) |
| INT64 Compute (long , a*b+c) 1.494 TIOPs/s (1/64) |
| INT32 Compute (int , a*b+c) 5.611 TIOPs/s (1/64) |
| INT16 Compute (short2, a*b+c) 11.153 TIOPs/s (1/64) |
| INT8 Compute (char4 , dp4a ) 0.330 TIOPs/s (1/64) |
| Memory Bandwidth ( coalesced read ) 275.74 GB/s |
| Memory Bandwidth ( coalesced write) 246.76 GB/s |
| Memory Bandwidth (misaligned read ) 240.12 GB/s |
| Memory Bandwidth (misaligned write) 81.64 GB/s |
|-----------------------------------------------------------------------------|