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

Individual benchmark run

Mobile Pentium MMX

Mobile Pentium MMX · tested Aug 19, 2026, 9:44 PM · uploaded by @superbeelavaman

In Review · not yet included in the processor average

C score115ASM score: 117

System information

Processor
Mobile Pentium MMX
Computer model
Mobile Pentium MMX
Architecture
x86 32-bit
Physical cores reported by run
1
Hardware threads reported by run
1
L1 cache
1 MB
L2 cache
1 MB
L3 cache
1 MB
Memory
111 MB
Operating system
'Gentoo Linux'
Kernel
Linux 6.6.58-mc2-easy
Compiler
GCC 15.3.0
FOSSbench version
0.4.2
Total test time
3 min 59 sec

Score summary

C multi-core115
C single-core116
ASM multi-core117
ASM single-core116

Test environment

Background monitoring
Available
Average background CPU use
0.2%
Peak background CPU use
2%
Available memory before test
85 MB
Running processes
101
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core54.84 Mops/s54.84 million work units/sec1780.58 seconds2014010397273
Single-core54.74 Mops/s54.74 million work units/sec1770.58 seconds2014010397273
Wide Integer Mathi386 integer ALU and software 64-bit arithmetic10% of overall scoreMulti-core17.92 Mops/s17.92 million work units/sec582.68 seconds2013938958640199854493
Single-core17.95 Mops/s17.95 million work units/sec582.67 seconds2013938958640199854493
Floating Point Mathx87 scalar double-precision floating point10% of overall scoreMulti-core10.27 Mops/s10.27 million work units/sec613.9 seconds2014622540543000602686
Single-core10.27 Mops/s10.27 million work units/sec613.89 seconds2014622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core6.88 Mcand/s6.88 million work units/sec850.58 seconds21297866
Single-core6.9 Mcand/s6.9 million work units/sec850.58 seconds21297866
Extended Instructionsscalar extended-instruction fallback10% of overall scoreMulti-core190.67 Mops/s190.67 million work units/sec2900.54 seconds3213880557033
Single-core187.82 Mops/s187.82 million work units/sec2860.51 seconds3011977458426
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core10.71 MB/s10.71 million work units/sec1590.39 seconds111679978
Single-core10.71 MB/s10.71 million work units/sec1590.78 seconds213359956
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core9.95 MB/s9.95 million work units/sec2450.42 seconds411153311051
Single-core10.02 MB/s10.02 million work units/sec2470.42 seconds411153311051
Physics512-body direct-sum gravity10% of overall scoreMulti-core1.31 Mpair/s1.31 million work units/sec210.8 seconds414631870538803682900
Single-core1.31 Mpair/s1.31 million work units/sec210.8 seconds414631870538803682900
Sortingheapsort, 1M uint3210% of overall scoreMulti-core3.49 Mkey-cmp/s3.49 million work units/sec966.01 seconds114406560160959951765
Single-core3.77 Mkey-cmp/s3.77 million work units/sec1045.56 seconds114406560160959951765
Memory Latencydependent-load pointer chase, 8 MiB0% of overall scoreMulti-core367.8 ns/access2.72 million work units/sec3440.74 seconds212833224
Single-core367.87 ns/access2.72 million work units/sec3440.74 seconds212833224
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core104.44 MB/s104.44 million work units/sec3261.93 seconds1611065620608
Single-core104.37 MB/s104.37 million work units/sec3261.93 seconds1611065620608