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 KB
L2 cache
4 MB
L3 cache
36 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