Theoretical peak
Theoretical combined computational rate of all the processors used by the benchmark expressed in Tflop/s (trillion floating-point operations per second or 10e12 flop/s). Typically, it is a product of the number of floating-point operations per cycle, clock frequency, and the number of processors. For the multi-core chips, a common practice is to refer to a single core as processor. So the theoretical peak should be multiplied by the number of cores. The table below gives the number of floating-point operations per cycle for common processors:
ProcessorFloating-point
operations per cycle
AMD Athlon2
AMD Athlon XP2
AMD Athlon MP2
AMD Opetron2
Alpha 211642
Alpha 212642
Alpha 21264 A2
Alpha 21264 B2
Alpha 21264 C2
Alpha 213642
Alpha 214642
Cray X1 MSP16
Cray X1E16
Cray X216
Fujitsu SPARC64 V2
Fujitsu SPARC64 V+2
Fujitsu SPARC64 VI2
G5 (IBM PowerPC 970)4
G5 (IBM PowerPC 970FX)4
HP PA-85004
HP PA-86004
HP PA-87004
HP PA-88004
HP PA-89004
IBM POWER34
IBM POWER44
IBM POWER4+4
IBM POWER54
IBM POWER5+4
IBM POWER64
IBM PowerPC 4404
Intel Itanium4
Intel Itanium 24
Intel Pentium III1
Intel Pentium 42
Intel Pentium 4 Celeron2
Intel Core 24
Intel Core 2 Duo4
Intel Core 2 Quad4
Intel Xeon2
Intel Xeon EM64T2
Intel Xeon MP2
NEC SX-416
NEC SX-516
NEC SX-616
NEC SX-716
NEC SX-88
PowerPC 6012
PowerPC 6032
PowerPC 6042
PowerPC 604e2
SGI MIPS 40002
SGI MIPS 50002
SGI MIPS 80002
SGI MIPS 100002
SGI MIPS 120002
SGI MIPS 140002
SGI MIPS 160002
SGI MIPS 180002
Sun UltraSPARC I2
Sun UltraSPARC II2
Sun UltraSPARC III2
Sun UltraSPARC IV2
Sun UltraSPARC IV+2
Sun UltraSPARC V2
Sun UltraSPARC T1 (Niagra)2
Sun Rock2