Linpack 1kx1k (DP) Peak GFLOPS Actual GFLOPS Efficiency
SPU, 3.2GHz 1.83 1.45 79.23%
8 SPUs, 3.2GHz 14.63 9.46 64.66%
Pentium4, 3.2GHz 6.4 3.1 48.44%
Pentium4 + SSE3, 3.6GHz 14.4 7.2 50.00%
Itanium, 1.6GHz 6.4 5.95 92.97%
*Comparison of Linpack performance between Cell BE and other processors
http://www-128.ibm.com/developerworks/power/library/pa-cellperf/