Distributed.net

Tested speeds

x86/ELF Client

Processor Type	Freq	Cores	Sockets	Tot Cores	Key Rate (keys/sec)
Intel P4	3.2	1	1	1	6,043,121
Intel P4	2.4	1	1	1	4,413,332
Intex Xeon E5335	2.0	4	2	8	52.94M
AMD Opteron 244	1.8	1	2	2	15.39M

AMD64 CUDA 3.1 Client

Processor Type	Freq	Cores	Sockets	Tot Cores	Key Rate (keys/sec)	Client Ver	Notes
nVidia Tesla	1.3Ghz	240	2	480	511.14M	517

AMD64 Client

Processor Type	Freq	Cores	Sockets	Tot Cores	Key Rate (keys/sec)	Client Ver	Notes
AMD Opteron 4184	2.8	6	2	12	130.49M	517
AMD Opteron 4184	2.8	6	1	6	65.80M	517
AMD Opteron 6174	2.2	12	4	48	410.26M	517	2
AMD Opteron 6174	2.2	12	2	24	198.32M	509	1
AMD Opteron 8435	2.6	6	4	24	139.55M	509
AMD Opteron 2427	2.2	6	2	12	75.24M	509
AMD Opteron 2456	2.3	4	2	8	72.86M	509
AMD Opteron 2350	2.0	4	2	8	52.98M	509
AMD Opteron 2214	2.2	2	2	4	26.42M	509
AMD Opteron 875	2.2	2	4	8	53.65M	509
AMD Opteron 275	2.2	2	2	4	34.73M	509
AMD Opteron 250	2.4	1	2	2	18.80M	509
AMD Phenom II X4 945	3.0	4	1	4	41.03M	518
Intel Xeon E5462	2.8	4	2	8	67.05M	509
Intel Xeon E5620	2.4	4	2	8	50.10M	517
Intel Xeon X5660	2.8	6	2	12	88.52M	517
Intel Xeon E5-2680	2.7	2	16	32	97.44M	518	3

Notes

1. As a note, dnetc was not able to detect the processor properly because it is a preproduction:

[Feb 19 16:35:07 UTC] Automatic processor type detection did not 
                      recognize the processor (tag: "40010001")

2. Updated client to version 517. 3. Could not detect processor properly:

[Dec 08 10:30:40 UTC] Automatic processor type detection did not
                      recognize the processor (tag: "100062D6")