Alpha software: FOSSbench scores have not yet been tested to be 100% accurate.
FOSSbench
Results›Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz›Individual run

Individual benchmark run

Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz

PowerEdge R720 · tested Aug 16, 2026, 2:16 AM

In Review · not yet included in the processor average

C score41,665ASM score: 36,643

System information

Processor
Intel(R) Xeon(R) CPU E5-2660 0 @ 2.20GHz
Computer model
PowerEdge R720
Architecture
x86-64
Physical cores reported by run
16
Hardware threads reported by run
32
L1 cache
32 MB
L2 cache
256 MB
L3 cache
20,480 MB
Memory
262,076 MB
Operating system
Windows 10.0 (build 20348)
Kernel
NT 10.0 build 20348
Compiler
GCC 13-win32
FOSSbench version
0.4.2
Total test time
1 min 15 sec

Score summary

C multi-core41,665
C single-core4,330
ASM multi-core36,643
ASM single-core3,462

Test environment

Background monitoring
Available
Average background CPU use
0.1%
Peak background CPU use
0.3%
Available memory before test
244,947 MB
Running processes
176
Activity sample duration
10 seconds

Individual workload results

WorkloadRunMeasured performanceRaw throughputScoreElapsedIterationsThreadsChecksum
Native Integer Mathcommon 32-bit multiply/add/rotate mix10% of overall scoreMulti-core30,215.13 Mops/s30,215.13 million work units/sec97,9100.48 seconds2813248339467968
Single-core2,270.15 Mops/s2,270.15 million work units/sec7,3560.32 seconds45312643888844
Wide Integer Math64-bit ALU: imul, mul, div, bitops10% of overall scoreMulti-core30,351.07 Mops/s30,351.07 million work units/sec98,3510.41 seconds161323846009730456251936
Single-core1,992.25 Mops/s1,992.25 million work units/sec6,4560.45 seconds376111181856830124411216
Floating Point Mathdouble: mulsd/addsd, divsd, sqrtsd10% of overall scoreMulti-core4,186.28 Mops/s4,186.28 million work units/sec24,8890.54 seconds3532347344786342873024
Single-core463 Mops/s463 million work units/sec2,7530.38 seconds8914622540543000602686
Prime Numberssieve of Eratosthenes to 2M10% of overall scoreMulti-core1,210.43 Mcand/s1,210.43 million work units/sec14,9070.48 seconds93242892704
Single-core204.29 Mcand/s204.29 million work units/sec2,5160.49 seconds5017446650
Extended InstructionsSSE2: 128-bit integer + float10% of overall scoreMulti-core52,768.7 Mops/s52,768.7 million work units/sec80,2440.5 seconds25732124532603776
Single-core4,065.02 Mops/s4,065.02 million work units/sec6,1820.43 seconds54712420838874
CompressionLZ77 match finder, 4 MiB corpus10% of overall scoreMulti-core3,530.05 MB/s3,530.05 million work units/sec52,3750.53 seconds1432752630144
Single-core253.04 MB/s253.04 million work units/sec3,7540.41 seconds25141999450
EncryptionChaCha20, 20 rounds, 1 MiB10% of overall scoreMulti-core1,896.57 MB/s1,896.57 million work units/sec46,7140.48 seconds273243394989024
Single-core145.92 MB/s145.92 million work units/sec3,5940.42 seconds591746938236
Physics512-body direct-sum gravity10% of overall scoreMulti-core669.35 Mpair/s669.35 million work units/sec10,6080.41 seconds3332740237269983971648
Single-core65.96 Mpair/s65.96 million work units/sec1,0450.57 seconds143113862457557288687300
Sortingheapsort, 1M uint3210% of overall scoreMulti-core1,182.26 Mkey-cmp/s1,182.26 million work units/sec32,5690.57 seconds13211882716634751595168
Single-core83.78 Mkey-cmp/s83.78 million work units/sec2,3080.75 seconds314406560160959951765
Memory Latencydependent-load pointer chase, 16 MiB0% of overall scoreMulti-core231.79 ns/access138.06 million work units/sec17,4760.7 seconds332289271888
Single-core45.85 ns/access21.81 million work units/sec2,7610.28 seconds615246208
Memory BandwidthSTREAM triad, 12 MiB working set per thread10% of overall scoreMulti-core20,819.73 MB/s20,819.73 million work units/sec65,0620.5 seconds263233743480832
Single-core11,202.11 MB/s11,202.11 million work units/sec35,0070.31 seconds27911066258808