Application Benchmarks, Stream benchmark
32/64-bit Dirac Kernel, LQCD (Martin Lüscher, CERN, DESY):
P4, 1.4 GHz, 256 MB Rambus
0.926 micro sec (1503 Mflops [32 bit arithmetic])
1.709 micro sec (814 Mflops [64 bit arithmetic])
P4 (1.4 GHz) vs. PIII(800 MHz) 80 ... 100 % improvement
P4(1.4 GHz, PC800 Rambus) : 1.6 GB/s
PIII (800MHz, PC133 SDRAM) : 400 MB/s
PIII(400 MHz, PC133 SDRAM) : 340 MB/s