Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench
Results›Pentium(R) Dual-Core CPU E5800 @ 3.20GHz›Individual run

Individual benchmark run

Pentium(R) Dual-Core CPU E5800 @ 3.20GHz

System Product Name · tested Sep 21, 2026, 3:48 AM

In Review · not yet included in the processor average

C score8,115ASM score: 7,081

System information

Processor
Pentium(R) Dual-Core CPU E5800 @ 3.20GHz
Computer model
System Product Name
Architecture
x86-64
Physical cores reported by run
2
Hardware threads reported by run
2
L1 cache
32 KB
L2 cache
2 MB
L3 cache
2 MB
Memory
2,047 MB
Operating system
Windows 10.0 (build 22631)
Kernel
NT 10.0 build 22631
Compiler
GCC 13-win32
FOSSbench version
0.4.2
Total test time
1 min 20 sec

Score summary

C multi-core8,115
C single-core5,455
ASM multi-core7,081
ASM single-core4,607

Test environment

Background monitoring
Available
Average background CPU use
8.7%
Peak background CPU use
26.2%
Available memory before test
778 MB
Running processes
88
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core7,622.25 Mops/s7,622.25 million work units/sec24,6990.5 seconds1,19421505468804
Single-core3,847.12 Mops/s3,847.12 million work units/sec12,4660.52 seconds1,25811566341754
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core6,370.03 Mops/s6,370.03 million work units/sec20,6420.53 seconds705216369265585169876156
Single-core3,270.03 Mops/s3,270.03 million work units/sec10,5960.47 seconds64312747997051804956272
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core1,690.75 Mops/s1,690.75 million work units/sec10,0520.57 seconds24229245081086001205372
Single-core855.68 Mops/s855.68 million work units/sec5,0870.57 seconds24214622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core49.91 Mcand/s49.91 million work units/sec6150.56 seconds722085062
Single-core141.97 Mcand/s141.97 million work units/sec1,7480.62 seconds4416553052
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core21,056.14 Mops/s21,056.14 million work units/sec32,0200.52 seconds1,7242566606498
Single-core10,693 Mops/s10,693 million work units/sec16,2610.52 seconds1,74113342475518
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core770.7 MB/s770.7 million work units/sec11,4350.52 seconds482161277888
Single-core387.21 MB/s387.21 million work units/sec5,7450.52 seconds48180638944
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core691.44 MB/s691.44 million work units/sec17,0310.52 seconds17024823154616
Single-core348.74 MB/s348.74 million work units/sec8,5900.52 seconds17312133198220
Physics512-body direct-sum gravity10% of overall scoreMulti-core96.23 Mpair/s96.23 million work units/sec1,5250.5 seconds9229288532882943743496
Single-core48.44 Mpair/s48.44 million work units/sec7680.52 seconds9714641033652370347546
Sortingheapsort, 1M uint3210% of overall scoreMulti-core137.12 Mkey-cmp/s137.12 million work units/sec3,7770.61 seconds220
Single-core109.16 Mkey-cmp/s109.16 million work units/sec3,0070.58 seconds314406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core93.54 ns/access21.38 million work units/sec2,7070.56 seconds6216844920
Single-core85.43 ns/access11.71 million work units/sec1,4820.51 seconds615246208
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core3,500.58 MB/s3,500.58 million work units/sec10,9390.49 seconds6822126781568
Single-core3,430.21 MB/s3,430.21 million work units/sec10,7190.47 seconds12911066948936