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

Individual benchmark run

Intel(R) Core(TM) i9-10850K CPU @ 3.60GHz

iMac20,2 · tested Jul 21, 2026, 1:57 PM · uploaded by @gavin

In Review · not yet included in the processor average

C score133,548ASM score: 105,643

System information

Processor
Intel(R) Core(TM) i9-10850K CPU @ 3.60GHz
Computer model
iMac20,2
Architecture
x86-64
Physical cores reported by run
10
Hardware threads reported by run
20
L1 cache
64 MB
L2 cache
256 MB
L3 cache
20,480 MB
Memory
32,768 MB
Operating system
macOS 26.5.2
Kernel
Darwin 25.5.0
Compiler
Clang 15.0.0 (clang-1500.3.9.4)
FOSSbench version
0.4.0
Total test time
1 min 21 sec

Score summary

C multi-core133,548
C single-core16,190
ASM multi-core105,643
ASM single-core11,229

Test environment

Background monitoring
Available
Average background CPU use
1%
Peak background CPU use
2.7%
Available memory before test
22,566 MB
Running processes
706
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core122,110.25 Mops/s122,110.25 million work units/sec395,6910.53 seconds2,028208350793180
Single-core8,559.3 Mops/s8,559.3 million work units/sec27,7360.52 seconds2,75811734881969
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core118,237.48 Mops/s118,237.48 million work units/sec383,1420.52 seconds1,2792014494873924691501440
Single-core7,622.33 Mops/s7,622.33 million work units/sec24,7000.41 seconds1,289113817973518821826140
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core28,298.77 Mops/s28,298.77 million work units/sec168,2450.54 seconds38120217090491464295640
Single-core1,538.99 Mops/s1,538.99 million work units/sec9,1500.51 seconds39314622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core1,533.78 Mcand/s1,533.78 million work units/sec18,8890.55 seconds212062551860
Single-core624.1 Mcand/s624.1 million work units/sec7,6860.53 seconds166124722878
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core217,162.32 Mops/s217,162.32 million work units/sec330,2350.54 seconds1,8172039993722040
Single-core23,240.73 Mops/s23,240.73 million work units/sec35,3420.54 seconds3,89011672287155
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core10,700.83 MB/s10,700.83 million work units/sec158,7660.52 seconds66202217570960
Single-core759.28 MB/s759.28 million work units/sec11,2650.4 seconds731122638394
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core10,321.77 MB/s10,321.77 million work units/sec254,2310.51 seconds2532038580415380
Single-core691.21 MB/s691.21 million work units/sec17,0250.6 seconds39813227058148
Physics512-body direct-sum gravity10% of overall scoreMulti-core3,394.57 Mpair/s3,394.57 million work units/sec53,7970.61 seconds39820476174991846765240
Single-core343.5 Mpair/s343.5 million work units/sec5,4440.54 seconds70314628309057359457444
Sortingheapsort, 1M uint3210% of overall scoreMulti-core1,885.16 Mkey-cmp/s1,885.16 million work units/sec51,9330.67 seconds32014344226924360828836
Single-core248.14 Mkey-cmp/s248.14 million work units/sec6,8360.59 seconds714406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core66 ns/access303.02 million work units/sec38,3570.53 seconds820181262464
Single-core16.13 ns/access61.99 million work units/sec7,8470.56 seconds3517151656
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core32,185.98 MB/s32,185.98 million work units/sec100,5810.52 seconds662021307865920
Single-core32,581.84 MB/s32,581.84 million work units/sec101,8180.6 seconds1,55011066637808