Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench

Individual benchmark run

Apple M1

MacBookAir10,1 · tested Jul 21, 2026, 1:21 AM · uploaded by @nova

Admin reviewed · excluded from the processor average

C score27,550ASM score: 28,945

System information

Processor
Apple M1
Computer model
MacBookAir10,1
Architecture
ARM64
Physical cores reported by run
8
Hardware threads reported by run
8
L1 cache
192 MB
L2 cache
4,096 MB
L3 cache
4,096 MB
Memory
8,192 MB
Operating system
macOS 26.6
Kernel
Darwin 25.6.0
Compiler
Clang 15.0.0 (clang-1500.3.9.4)
FOSSbench version
0.4.0
Total test time
1 min 37 sec

Score summary

C multi-core27,550
C single-core8,397
ASM multi-core28,945
ASM single-core7,933

Test environment

Background monitoring
Available
Average background CPU use
54.2%
Peak background CPU use
60.8%
Available memory before test
3,155 MB
Running processes
583
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core6,412.03 Mops/s6,412.03 million work units/sec20,7780.48 seconds242819955402064
Single-core2,043.97 Mops/s2,043.97 million work units/sec6,6230.35 seconds4511860320215
Wide Integer Math64-bit ALU: madd, umulh, udiv, bitops10% of overall scoreMulti-core12,067.03 Mops/s12,067.03 million work units/sec39,1020.79 seconds49887027238614440454008
Single-core2,475.75 Mops/s2,475.75 million work units/sec8,0230.37 seconds381112902982851002437783
Floating Point Mathdouble: fmadd, fdiv, fsqrt10% of overall scoreMulti-core7,732.72 Mops/s7,732.72 million work units/sec45,9730.55 seconds265886836196585718256
Single-core1,507.21 Mops/s1,507.21 million work units/sec8,9610.44 seconds33414622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core1,098.15 Mcand/s1,098.15 million work units/sec13,5241.6 seconds1108131061040
Single-core707.64 Mcand/s707.64 million work units/sec8,7150.47 seconds166124722878
Extended InstructionsNEON ASIMD: 128-bit integer + float10% of overall scoreMulti-core30,253.75 Mops/s30,253.75 million work units/sec46,0060.51 seconds602832579016256
Single-core5,207.93 Mops/s5,207.93 million work units/sec7,9200.33 seconds54512941282994
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core1,724.79 MB/s1,724.79 million work units/sec25,5901.07 seconds558739190320
Single-core425.04 MB/s425.04 million work units/sec6,3060.38 seconds39165519142
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core826.75 MB/s826.75 million work units/sec20,3630.7 seconds6988680656528
Single-core225.24 MB/s225.24 million work units/sec5,5480.38 seconds8213945065924
Physics512-body direct-sum gravity10% of overall scoreMulti-core954.84 Mpair/s954.84 million work units/sec15,1321.19 seconds5428238938125720198408
Single-core479.72 Mpair/s479.72 million work units/sec7,6030.36 seconds65314635361720473421127
Sortingheapsort, 1M uint3210% of overall scoreMulti-core629.99 Mkey-cmp/s629.99 million work units/sec17,3551.07 seconds480
Single-core241.99 Mkey-cmp/s241.99 million work units/sec6,6670.43 seconds514406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core99.3 ns/access80.57 million work units/sec10,1980.6 seconds6854326376
Single-core21.79 ns/access45.88 million work units/sec5,8080.5 seconds2318937224
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core25,348.93 MB/s25,348.93 million work units/sec79,2150.95 seconds24088554322944
Single-core9,571.8 MB/s9,571.8 million work units/sec29,9120.43 seconds33011065520848