RPi ARMv7 Cortex-A53 testing with a BCM2835 Raspberry Pi Zero 2 W Rev 1.0 and vc4drmfb on Raspbian 11 via the Phoronix Test Suite. Raspberry Pi 400: Processor: ARMv7 Cortex-A72 @ 1.80GHz (4 Cores), Motherboard: BCM2711 Raspberry Pi 400 Rev 1.0, Memory: 4096MB, Disk: 16GB SC16G, Graphics: vc4drmfb, Monitor: DELL P2210H OS: Raspbian 10, Kernel: 5.10.63-v7l+ (armv7l), Desktop: LXDE, Display Server: X Server 1.20.4, Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 1920x1080 Raspberry Pi Zero 2 W: Processor: ARMv7 Cortex-A53 @ 1.00GHz (4 Cores), Motherboard: BCM2835 Raspberry Pi Zero 2 Rev 1.0, Memory: 427MB, Disk: 16GB SC16G, Graphics: BCM2708 OS: Raspbian 10, Kernel: 5.10.63-v7+ (armv7l), Desktop: LXDE, Display Server: X Server 1.20.4, Compiler: GCC 8.3.0, File-System: ext4, Screen Resolution: 656x416 SiFive U740: Processor: SiFive U740 (4 Cores), Motherboard: SiFive HiFive Unmatched A00, Chipset: SiFive FU740-C000 RISC-V SoC, Memory: 16GB, Disk: 1000GB Samsung SSD 980 1TB + 32GB SC32G, Graphics: Sapphire AMD Radeon HD 6770, Audio: AMD Juniper HDMI Audio, Monitor: VA2431 OS: Ubuntu 21.10, Kernel: 5.13.0-1004-generic (riscv64), Desktop: GNOME Shell 40.5, Display Server: X Server, Compiler: GCC 11.2.0, File-System: ext4, Screen Resolution: 1920x1080 Pi Zero 2W dkk: Processor: ARMv7 Cortex-A53 @ 1.00GHz (4 Cores), Motherboard: BCM2835 Raspberry Pi Zero 2 W Rev 1.0, Memory: 426MB, Disk: 31GB SD32G OS: Raspbian 11, Kernel: 6.1.21-v7+ (armv7l), Vulkan: 1.0.2, Compiler: GCC 10.2.1 20210110, File-System: ext4 Pi Zero 2W dkk2: Processor: ARMv7 Cortex-A53 @ 1.00GHz (4 Cores), Motherboard: BCM2835 Raspberry Pi Zero 2 W Rev 1.0, Memory: 426MB, Disk: 31GB SD32G OS: Raspbian 11, Kernel: 6.1.21-v7+ (armv7l), Vulkan: 1.0.2, Compiler: GCC 10.2.1 20210110, File-System: ext4 Pi Zero 2W dk: Processor: ARMv7 Cortex-A53 @ 1.00GHz (4 Cores), Motherboard: BCM2835 Raspberry Pi Zero 2 W Rev 1.0, Memory: 426MB, Disk: 31GB SD32G, Graphics: vc4drmfb, Monitor: DELL S2721QS OS: Raspbian 11, Kernel: 6.1.21-v7+ (armv7l), Vulkan: 1.0.2, Compiler: GCC 10.2.1 20210110, File-System: ext4, Screen Resolution: 1920x1080 CloverLeaf Lagrangian-Eulerian Hydrodynamics Seconds < Lower Is Better Raspberry Pi 400 ...... 1599.61 |=================== Raspberry Pi Zero 2 W . 3565.84 |========================================= Pi Zero 2W dkk ........ 3667.69 |=========================================== Pi Zero 2W dkk2 ....... 3664.38 |========================================== Pi Zero 2W dk ......... 3966.72 |============================================== FFTE 7.0 N=256, 3D Complex FFT Routine MFLOPS > Higher Is Better Raspberry Pi 400 ...... 2500.99 |============================================== Raspberry Pi Zero 2 W . 1048.52 |=================== SiFive U740 ........... 941.06 |================= Pi Zero 2W dkk ........ 1045.71 |=================== Pi Zero 2W dkk2 ....... 1040.86 |=================== Pi Zero 2W dk ......... 1001.75 |================== WebP Image Encode 1.1 Encode Settings: Default Encode Time - Seconds < Lower Is Better Raspberry Pi 400 ...... 7.648 |=========== Raspberry Pi Zero 2 W . 21.958 |=============================== SiFive U740 ........... 33.762 |=============================================== Pi Zero 2W dkk ........ 21.458 |============================== Pi Zero 2W dkk2 ....... 21.474 |============================== Pi Zero 2W dk ......... 21.468 |============================== WebP Image Encode 1.1 Encode Settings: Quality 100 Encode Time - Seconds < Lower Is Better Raspberry Pi 400 ...... 10.31 |============ Raspberry Pi Zero 2 W . 29.15 |================================= SiFive U740 ........... 42.94 |================================================ Pi Zero 2W dkk ........ 30.31 |================================== Pi Zero 2W dkk2 ....... 30.32 |================================== Pi Zero 2W dk ......... 30.38 |================================== WebP Image Encode 1.1 Encode Settings: Quality 100, Lossless Encode Time - Seconds < Lower Is Better Raspberry Pi 400 ...... 86.16 |=================== SiFive U740 ........... 214.11 |=============================================== WebP Image Encode 1.1 Encode Settings: Quality 100, Highest Compression Encode Time - Seconds < Lower Is Better Raspberry Pi 400 ...... 30.51 |================== Raspberry Pi Zero 2 W . 83.50 |================================================ SiFive U740 ........... 78.53 |============================================= Pi Zero 2W dkk ........ 79.77 |============================================== Pi Zero 2W dkk2 ....... 79.76 |============================================== Pi Zero 2W dk ......... 79.86 |============================================== DaCapo Benchmark 9.12-MR1 Java Test: Jython msec < Lower Is Better Raspberry Pi 400 ...... 31282 |= Raspberry Pi Zero 2 W . 94264 |== SiFive U740 ........... 2667746 |============================================== Pi Zero 2W dkk2 ....... 96926 |== Pi Zero 2W dk ......... 100467 |== DaCapo Benchmark 9.12-MR1 Java Test: Eclipse msec < Lower Is Better LZ4 Compression 1.9.3 Compression Level: 1 - Compression Speed MB/s > Higher Is Better Raspberry Pi 400 ...... 2524.42 |============================================== SiFive U740 ........... 123.07 |== LZ4 Compression 1.9.3 Compression Level: 1 - Decompression Speed MB/s > Higher Is Better Raspberry Pi 400 ...... 2631.1 |=============================================== SiFive U740 ........... 131.4 |== LZ4 Compression 1.9.3 Compression Level: 3 - Compression Speed MB/s > Higher Is Better Raspberry Pi 400 ...... 12.18 |================================================ SiFive U740 ........... 3.81 |=============== LZ4 Compression 1.9.3 Compression Level: 3 - Decompression Speed MB/s > Higher Is Better Raspberry Pi 400 ...... 1834.0 |=============================================== SiFive U740 ........... 131.4 |=== LZ4 Compression 1.9.3 Compression Level: 9 - Compression Speed MB/s > Higher Is Better Raspberry Pi 400 ...... 11.75 |================================================ SiFive U740 ........... 3.70 |=============== LZ4 Compression 1.9.3 Compression Level: 9 - Decompression Speed MB/s > Higher Is Better Raspberry Pi 400 ...... 1848.4 |=============================================== SiFive U740 ........... 131.4 |=== LibRaw 0.20 Post-Processing Benchmark Mpix/sec > Higher Is Better Raspberry Pi 400 ...... 5.93 |================================================= Raspberry Pi Zero 2 W . 1.86 |=============== Pi Zero 2W dk ......... 1.14 |========= TSCP 1.81 AI Chess Performance Nodes Per Second > Higher Is Better Raspberry Pi 400 ...... 423350 |=============================================== Raspberry Pi Zero 2 W . 145592 |================ Pi Zero 2W dk ......... 144161 |================ GraphicsMagick 1.3.33 Operation: Rotate Iterations Per Minute > Higher Is Better Raspberry Pi 400 ...... 87 |=================================================== Raspberry Pi Zero 2 W . 26 |=============== SiFive U740 ........... 27 |================ Pi Zero 2W dk ......... 25 |=============== GraphicsMagick 1.3.33 Operation: Sharpen Iterations Per Minute > Higher Is Better Raspberry Pi 400 ...... 17 |=================================================== Raspberry Pi Zero 2 W . 5 |=============== SiFive U740 ........... 8 |======================== Pi Zero 2W dk ......... 4 |============ GraphicsMagick 1.3.33 Operation: Resizing Iterations Per Minute > Higher Is Better Raspberry Pi 400 ...... 52 |=================================================== Raspberry Pi Zero 2 W . 20 |==================== SiFive U740 ........... 25 |========================= Pi Zero 2W dk ......... 19 |=================== Coremark 1.0 CoreMark Size 666 - Iterations Per Second Iterations/Sec > Higher Is Better Raspberry Pi 400 ...... 39714.79 |============================================= Raspberry Pi Zero 2 W . 12755.10 |============== SiFive U740 ........... 15996.55 |================== Pi Zero 2W dk ......... 12820.51 |=============== Timed Apache Compilation 2.4.41 Time To Compile Seconds < Lower Is Better Raspberry Pi 400 ...... 142.08 |================ Raspberry Pi Zero 2 W . 334.84 |====================================== Pi Zero 2W dk ......... 414.37 |=============================================== Timed FFmpeg Compilation 4.4 Seconds < Lower Is Better Timed GDB GNU Debugger Compilation 10.2 Seconds < Lower Is Better Timed PHP Compilation 7.4.2 Time To Compile Seconds < Lower Is Better Raspberry Pi 400 ...... 560.38 |=============================================== Gzip Compression Linux Source Tree Archiving To .tar.gz Seconds < Lower Is Better Raspberry Pi 400 ...... 137.23 |=============== Raspberry Pi Zero 2 W . 347.44 |====================================== SiFive U740 ........... 375.16 |========================================= Pi Zero 2W dk ......... 429.76 |=============================================== FLAC Audio Encoding 1.3.3 WAV To FLAC Seconds < Lower Is Better Raspberry Pi 400 ...... 184.01 |======== Raspberry Pi Zero 2 W . 942.50 |=========================================== SiFive U740 ........... 731.43 |================================= Pi Zero 2W dk ......... 1012.45 |============================================== LAME MP3 Encoding 3.100 WAV To MP3 Seconds < Lower Is Better Raspberry Pi 400 ...... 34.59 |================= Raspberry Pi Zero 2 W . 96.52 |=============================================== Pi Zero 2W dk ......... 97.58 |================================================ eSpeak-NG Speech Engine 20200907 Text-To-Speech Synthesis Seconds < Lower Is Better Raspberry Pi 400 ...... 145.54 |============== Raspberry Pi Zero 2 W . 493.31 |============================================== SiFive U740 ........... 321.41 |============================== Pi Zero 2W dk ......... 505.66 |=============================================== RNNoise 2020-06-28 Seconds < Lower Is Better Raspberry Pi 400 ...... 57.37 |=========== Raspberry Pi Zero 2 W . 246.89 |============================================== SiFive U740 ........... 180.36 |================================== Pi Zero 2W dk ......... 249.99 |=============================================== SecureMark 1.0.4 Benchmark: SecureMark-TLS marks > Higher Is Better Raspberry Pi 400 ...... 45467 |================================================ Raspberry Pi Zero 2 W . 13917 |=============== SiFive U740 ........... 20457 |====================== Pi Zero 2W dk ......... 13588 |============== Stress-NG 0.13.02 Test: Crypto Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 181.69 |=============================================== Raspberry Pi Zero 2 W . 61.71 |================ SiFive U740 ........... 90.78 |======================= Pi Zero 2W dk ......... 62.62 |================ Stress-NG 0.13.02 Test: Forking Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 2391.15 |====================================== Raspberry Pi Zero 2 W . 1708.43 |=========================== SiFive U740 ........... 2872.93 |============================================== Pi Zero 2W dk ......... 1588.35 |========================= Stress-NG 0.13.02 Test: IO_uring Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 4759.39 |============================================== Raspberry Pi Zero 2 W . 3738.13 |==================================== SiFive U740 ........... 2747.93 |=========================== Pi Zero 2W dk ......... 1776.61 |================= Stress-NG 0.13.02 Test: SENDFILE Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 11804.23 |============================================= Raspberry Pi Zero 2 W . 4688.30 |================== SiFive U740 ........... 7215.72 |============================ Pi Zero 2W dk ......... 6776.43 |========================== Stress-NG 0.13.02 Test: CPU Cache Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 77.46 |================================================ Raspberry Pi Zero 2 W . 22.16 |============== SiFive U740 ........... 12.67 |======== Pi Zero 2W dk ......... 23.27 |============== Stress-NG 0.13.02 Test: Vector Math Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 1222.58 |============================================== Raspberry Pi Zero 2 W . 271.15 |========== SiFive U740 ........... 447.29 |================= Pi Zero 2W dk ......... 382.15 |============== Stress-NG 0.13.02 Test: Memory Copying Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 98.36 |================================================ Raspberry Pi Zero 2 W . 62.70 |=============================== SiFive U740 ........... 38.45 |=================== Pi Zero 2W dk ......... 59.12 |============================= Stress-NG 0.13.02 Test: Socket Activity Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 398.88 |=============================================== Raspberry Pi Zero 2 W . 281.74 |================================= SiFive U740 ........... 189.56 |====================== Pi Zero 2W dk ......... 291.40 |================================== Stress-NG 0.13.02 Test: System V Message Passing Bogo Ops/s > Higher Is Better Raspberry Pi 400 ...... 747461.02 |============================= Raspberry Pi Zero 2 W . 443022.41 |================= SiFive U740 ........... 417717.88 |================ Pi Zero 2W dk ......... 1124693.95 |=========================================== PyBench 2018-02-16 Total For Average Test Times Milliseconds < Lower Is Better Raspberry Pi 400 ...... 4380 |========== Raspberry Pi Zero 2 W . 20058 |============================================== SiFive U740 ........... 20778 |================================================ Pi Zero 2W dk ......... 19782 |============================================== PHPBench 0.8.1 PHP Benchmark Suite Score > Higher Is Better Raspberry Pi 400 ...... 122517 |=============================================== Raspberry Pi Zero 2 W . 34142 |============= SiFive U740 ........... 39529 |=============== Pi Zero 2W dk ......... 35263 |============== WavPack Audio Encoding 5.3 WAV To WavPack Seconds < Lower Is Better Raspberry Pi 400 ...... 192.86 |============= Raspberry Pi Zero 2 W . 723.85 |=============================================== SiFive U740 ........... 708.16 |============================================== Pi Zero 2W dk ......... 724.06 |=============================================== Timed FFmpeg Compilation 4.4 Time To Compile Seconds < Lower Is Better SiFive U740 ... 2338.98 |====================================================== Timed GDB GNU Debugger Compilation 10.2 Time To Compile Seconds < Lower Is Better SiFive U740 ... 1954.46 |======================================================