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

Individual benchmark run

Intel(R) Core(TM)2 Duo CPU P7550 @ 2.26GHz

MacBook6,1 · tested Jul 21, 2026, 6:32 AM · uploaded by @azerythz

In Review · not yet included in the processor average

C score6,308ASM score: 5,235

System information

Processor
Intel(R) Core(TM)2 Duo CPU P7550 @ 2.26GHz
Computer model
MacBook6,1
Architecture
x86-64
Physical cores reported by run
2
Hardware threads reported by run
2
L1 cache
64 MB
L2 cache
3,072 MB
L3 cache
3,072 MB
Memory
2,048 MB
Operating system
macOS
Kernel
Darwin 10.8.0
Compiler
Clang 15.0.0 (clang-1500.3.9.4)
FOSSbench version
0.4.0
Total test time
1 min 16 sec

Score summary

C multi-core6,308
C single-core4,350
ASM multi-core5,235
ASM single-core3,551

Test environment

Background monitoring
Available
Average background CPU use
5.4%
Peak background CPU use
7.5%
Available memory before test
1,142 MB
Running processes
58
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core4,935.54 Mops/s4,935.54 million work units/sec15,9930.51 seconds79323345307226
Single-core2,576.58 Mops/s2,576.58 million work units/sec8,3490.52 seconds83311546111173
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core3,730.76 Mops/s3,730.76 million work units/sec12,0890.54 seconds419211360827742892975992
Single-core1,989.09 Mops/s1,989.09 million work units/sec6,4460.52 seconds43218255980210715641705
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core920.89 Mops/s920.89 million work units/sec5,4750.53 seconds12329245081086001205372
Single-core503.44 Mops/s503.44 million work units/sec2,9930.52 seconds13114622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core106.04 Mcand/s106.04 million work units/sec1,3060.53 seconds1424170124
Single-core186.74 Mcand/s186.74 million work units/sec2,3000.55 seconds5117595583
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core11,216.72 Mops/s11,216.72 million work units/sec17,0570.56 seconds9742587018000
Single-core6,516.97 Mops/s6,516.97 million work units/sec9,9100.52 seconds1,06012737525362
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core473.94 MB/s473.94 million work units/sec7,0320.67 seconds382127678328
Single-core302.73 MB/s302.73 million work units/sec4,4920.53 seconds38163839164
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core474.41 MB/s474.41 million work units/sec11,6850.55 seconds12524279823814
Single-core267.18 MB/s267.18 million work units/sec6,5810.52 seconds13213790006250
Physics512-body direct-sum gravity10% of overall scoreMulti-core105.62 Mpair/s105.62 million work units/sec1,6740.52 seconds10529282476803842158158
Single-core55.51 Mpair/s55.51 million work units/sec8800.52 seconds111113859155936878476999
Sortingheapsort, 1M uint3210% of overall scoreMulti-core106.47 Mkey-cmp/s106.47 million work units/sec2,9330.39 seconds128813120321919903530
Single-core85.82 Mkey-cmp/s85.82 million work units/sec2,3640.73 seconds314406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core111.64 ns/access17.92 million work units/sec2,2680.56 seconds5223218368
Single-core95.25 ns/access10.5 million work units/sec1,3290.57 seconds615246208
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core3,356.39 MB/s3,356.39 million work units/sec10,4890.52 seconds6922144516304
Single-core3,440.08 MB/s3,440.08 million work units/sec10,7500.47 seconds12911066948936