Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench
Results›Intel(R) Core(TM) Ultra 9 275HX›Individual run

Individual benchmark run

Intel(R) Core(TM) Ultra 9 275HX

83F5 · tested Jul 24, 2026, 5:00 PM

In Review · not yet included in the processor average

C score275,907ASM score: 203,640

System information

Processor
Intel(R) Core(TM) Ultra 9 275HX
Computer model
83F5
Architecture
x86-64
Physical cores reported by run
24
Hardware threads reported by run
24
L1 cache
64 MB
L2 cache
4,096 MB
L3 cache
36,864 MB
Memory
32,189 MB
Operating system
Windows 10.0 (build 26200)
Kernel
NT 10.0 build 26200
Compiler
GCC 13-win32
FOSSbench version
0.4.2
Total test time
1 min 17 sec

Score summary

C multi-core275,907
C single-core20,937
ASM multi-core203,640
ASM single-core14,039

Test environment

Background monitoring
Available
Average background CPU use
8.1%
Peak background CPU use
11.2%
Available memory before test
17,988 MB
Running processes
324
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core173,665.73 Mops/s173,665.73 million work units/sec562,7540.52 seconds2,3632420140123032
Single-core9,848.23 Mops/s9,848.23 million work units/sec31,9130.51 seconds3,1531594823887
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core148,136.37 Mops/s148,136.37 million work units/sec480,0270.5 seconds1,2892418036715198661449888
Single-core8,183.57 Mops/s8,183.57 million work units/sec26,5180.57 seconds1,93411003833297048177299
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core87,463.79 Mops/s87,463.79 million work units/sec519,9990.45 seconds81424260508589757154768
Single-core4,680.36 Mops/s4,680.36 million work units/sec27,8260.52 seconds1,21514622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core14,191.56 Mcand/s14,191.56 million work units/sec174,7730.52 seconds15524554030760
Single-core1,082.71 Mcand/s1,082.71 million work units/sec13,3340.52 seconds281141850173
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core351,932.3 Mops/s351,932.3 million work units/sec535,1770.52 seconds2,3782498401601472
Single-core23,341.68 Mops/s23,341.68 million work units/sec35,4950.52 seconds3,7801548833640
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core14,312.5 MB/s14,312.5 million work units/sec212,3520.46 seconds66242661085152
Single-core674.5 MB/s674.5 million work units/sec10,0070.45 seconds731122638394
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core13,468.88 MB/s13,468.88 million work units/sec331,7460.51 seconds275247865916552
Single-core686.58 MB/s686.58 million work units/sec16,9110.4 seconds26512676429641
Physics512-body direct-sum gravity10% of overall scoreMulti-core6,740.96 Mpair/s6,740.96 million work units/sec106,8300.55 seconds58824445179397648558584
Single-core471.43 Mpair/s471.43 million work units/sec7,4710.52 seconds93714637065239603676315
Sortingheapsort, 1M uint3210% of overall scoreMulti-core4,277.5 Mkey-cmp/s4,277.5 million work units/sec117,8370.47 seconds4240
Single-core259.39 Mkey-cmp/s259.39 million work units/sec7,1460.57 seconds714406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core115.21 ns/access208.32 million work units/sec26,3690.46 seconds424200992264
Single-core19.49 ns/access51.31 million work units/sec6,4950.55 seconds28116327064
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core70,207.1 MB/s70,207.1 million work units/sec219,3970.48 seconds1112425624868160
Single-core51,451.12 MB/s51,451.12 million work units/sec160,7850.51 seconds2,07611067914208