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

Individual benchmark run

Intel(R) Celeron(R) CPU 3855U @ 1.60GHz

Intel(R) Celeron(R) CPU 3855U @ 1.60GHz · tested Jul 23, 2026, 9:51 AM · uploaded by @vex

In Review · not yet included in the processor average

C score8,563ASM score: 6,403

System information

Processor
Intel(R) Celeron(R) CPU 3855U @ 1.60GHz
Computer model
Intel(R) Celeron(R) CPU 3855U @ 1.60GHz
Architecture
x86-64
Physical cores reported by run
2
Hardware threads reported by run
2
L1 cache
64 MB
L2 cache
256 MB
L3 cache
2,048 MB
Memory
3,809 MB
Operating system
openSUSE Tumbleweed
Kernel
Linux 7.1.3-1-default
Compiler
GCC 13.3.0
FOSSbench version
0.4.2
Total test time
1 min 20 sec

Score summary

C multi-core8,563
C single-core4,639
ASM multi-core6,403
ASM single-core3,444

Test environment

Background monitoring
Available
Average background CPU use
0%
Peak background CPU use
0.5%
Available memory before test
3,156 MB
Running processes
125
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core5,817.46 Mops/s5,817.46 million work units/sec18,8510.52 seconds94525900259368
Single-core2,909.07 Mops/s2,909.07 million work units/sec9,4270.52 seconds94613615927563
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core4,756.56 Mops/s4,756.56 million work units/sec15,4130.52 seconds51621069830282758638500
Single-core2,380.9 Mops/s2,380.9 million work units/sec7,7150.52 seconds51619758287178234095058
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core881.19 Mops/s881.19 million work units/sec5,2390.52 seconds11529245081086001205372
Single-core441.39 Mops/s441.39 million work units/sec2,6240.52 seconds11514622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core289.37 Mcand/s289.37 million work units/sec3,5640.5 seconds36210723176
Single-core190.97 Mcand/s190.97 million work units/sec2,3520.53 seconds5117595583
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core16,303.59 Mops/s16,303.59 million work units/sec24,7930.52 seconds1,32624526378068
Single-core8,174.07 Mops/s8,174.07 million work units/sec12,4300.52 seconds1,32612263189034
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core363.17 MB/s363.17 million work units/sec5,3880.53 seconds23277278988
Single-core181.8 MB/s181.8 million work units/sec2,6970.53 seconds23138639494
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core402.39 MB/s402.39 million work units/sec9,9110.52 seconds10026090280650
Single-core201.8 MB/s201.8 million work units/sec4,9700.52 seconds101135643402
Physics512-body direct-sum gravity10% of overall scoreMulti-core151.11 Mpair/s151.11 million work units/sec2,3950.52 seconds15029278635254413379586
Single-core75.52 Mpair/s75.52 million work units/sec1,1970.52 seconds15014639317627206689793
Sortingheapsort, 1M uint3210% of overall scoreMulti-core121.95 Mkey-cmp/s121.95 million work units/sec3,3590.69 seconds220
Single-core67.45 Mkey-cmp/s67.45 million work units/sec1,8580.62 seconds210
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core121.49 ns/access16.46 million work units/sec2,0840.61 seconds5223218368
Single-core116.04 ns/access8.62 million work units/sec1,0910.58 seconds5115862320
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core11,739.29 MB/s11,739.29 million work units/sec36,6850.52 seconds24322135533232
Single-core8,873.93 MB/s8,873.93 million work units/sec27,7310.52 seconds36911059625360