Primeminer 0.6 RC3
Ubuntu 12.04
i5 3330 x64 @ 3.0 Ghz 4 threads 2502 primes/s, 38821 tests/s, 1080 5-chains/h, 1.341 chains/d
i7 2600 x64@ 3.40 Ghz 4 threads 2659 primes/s, 41271 tests/s, 900 5-chains/h, 1.375 chains/d
Pentium E5500 x86 @ 2.80 Ghz 2 threads 380 primes/s, 5761 tests/s, 60 5-chains/h, 0.227 chains/d
i3 3210 @ x64 3.20 Ghz 4 threads 1304 primes/s, 20192 tests/s, 60 5-chains/h, 0.683 chains/d
Edit: Some more, everything x64 unless specifically labeled x86
i7 920 @ 2.67 Ghz 8 threads 1824 primes/s, 28211 tests/s, 480 5-chains/h, 0.963 chains/d
i7 Q 720 @ 1.6 Ghz 8 threads 1115 primes/s, 17107 tests/s, 480 5-chains/h, 0.604 chains/d
Core 2 Quad Q9550 @ 2.83 Ghz 4 threads 1430 primes/s, 22185 tests/s, 480 5-chains/h, 0.756 chains/d
Edit 2:
Intel® Core™ i7 CPU 870 @ 2.93GHz 4 threads 2031 primes/s, 31175 tests/s, 900 5-chains/h, 1.107 chains/d
Edit 3 (01.11.2013)
Intel® Core™ i5-3210M CPU @ 2.50GHz 4 threads 1014 primes/s, 15730 tests/s, 300 5-chains/h, 0.540 chains/d
AMD A8-3870 APU @ 3Ghz 4 threads 1505 primes/s, 24357 tests/s, 360 5-chains/h, 0.613 chains/d