Short string : 123(SSE2) vs 105(PB)
Longer string : 103(SSE2) vs 101(PB)
Very long string : 447(SSE2) vs 2504(PB)
PB 5.30 x32 Unicode mid string, SSE2 vs PB
Short string : 97(SSE2) vs 80(PB)
Longer string : 91(SSE2) vs 94(PB)
Very long string : 449(SSE2) vs 2498(PB)
Looking at benchmarks posted on this forum comparing 32-bit vs 64-bit, the 32-bit is nearly always the faster one. I guess not very many people here use 64-bit values.