Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench
Results›Pentium III (Coppermine)›Individual run

Individual benchmark run

Pentium III (Coppermine)

Pentium III (Coppermine) · tested Oct 1, 2026, 7:23 AM

In Review · not yet included in the processor average

C score239ASM score: 235

System information

Processor
Pentium III (Coppermine)
Computer model
Pentium III (Coppermine)
Architecture
x86 32-bit
Physical cores reported by run
1
Hardware threads reported by run
1
L1 cache
1 KB
L2 cache
1 KB
L3 cache
1 KB
Memory
491 MB
Operating system
Debian GNU/Linux 13 (trixie)
Kernel
Linux 5.10.240-antix.1-486-smp
Compiler
GCC 13.3.0
FOSSbench version
0.4.2
Total test time
2 min 38 sec

Score summary

C multi-core239
C single-core239
ASM multi-core235
ASM single-core244

Test environment

Background monitoring
Available
Average background CPU use
46.2%
Peak background CPU use
63%
Available memory before test
434 MB
Running processes
110
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core155.84 Mops/s155.84 million work units/sec5050.82 seconds8011811178568
Single-core155.9 Mops/s155.9 million work units/sec5050.51 seconds5012289344427
Wide Integer Mathi386 integer ALU and software 64-bit arithmetic10% of overall scoreMulti-core44.08 Mops/s44.08 million work units/sec1431.09 seconds2013938958640199854493
Single-core49.34 Mops/s49.34 million work units/sec1600.97 seconds2013938958640199854493
Floating Point Mathx87 scalar double-precision floating point10% of overall scoreMulti-core37.79 Mops/s37.79 million work units/sec2251.06 seconds2014622540543000602686
Single-core37.03 Mops/s37.03 million work units/sec2201.08 seconds2014622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core3.56 Mcand/s3.56 million work units/sec440.56 seconds11148933
Single-core2.84 Mcand/s2.84 million work units/sec351.41 seconds21297866
Extended Instructionsscalar extended-instruction fallback10% of overall scoreMulti-core650.55 Mops/s650.55 million work units/sec9890.4 seconds8113875501989
Single-core560.66 Mops/s560.66 million work units/sec8530.46 seconds8113875501989
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core21.63 MB/s21.63 million work units/sec3210.97 seconds518399890
Single-core25.59 MB/s25.59 million work units/sec3800.82 seconds518399890
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core22.58 MB/s22.58 million work units/sec5560.84 seconds1813085220486
Single-core26.75 MB/s26.75 million work units/sec6590.43 seconds1114279447945
Physics512-body direct-sum gravity10% of overall scoreMulti-core4.5 Mpair/s4.5 million work units/sec710.41 seconds714635913815474188649
Single-core4.25 Mpair/s4.25 million work units/sec670.68 seconds1114640096058503580748
Sortingheapsort, 1M uint3210% of overall scoreMulti-core5.95 Mkey-cmp/s5.95 million work units/sec1643.52 seconds114406560160959951765
Single-core5.96 Mkey-cmp/s5.96 million work units/sec1643.52 seconds114406560160959951765
Memory Latencydependent-load pointer chase, 8 MiB0% of overall scoreMulti-core275.75 ns/access3.63 million work units/sec4591.1 seconds412253268
Single-core241.4 ns/access4.14 million work units/sec5240.97 seconds412253268
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core133.37 MB/s133.37 million work units/sec4171.51 seconds1611065620608
Single-core132.9 MB/s132.9 million work units/sec4151.51 seconds1611065620608