zlib Mini-GZIP 1.2.3	Source: zlib

The Mini-GZIP benchmark contains both 64-bit benchmark that measures the performance of an AMD64 optimized version of ZLIB. It also contains a 32-bit benchmark implemented with the standard (unmodified) ZLIB. Lower is better.

Mini-GZIP
Processor	Seconds	Ranking
Intel Core 2 Duo E6600 (WinXP 32/32 Bit)	6.23
Intel Core 2 Duo E6600 (WinXP 64/32 Bit)	6.22
Intel Core 2 Duo E6600 (WinXP 64/64 Bit)	2.07
Intel Pentium D 940 (WinXP 32/32 Bit)	9.28
Intel Pentium D 940 (WinXP 64/32 Bit)	9.28
Intel Pentium D 940 (WinXP 64/64 Bit)	5.83
Intel Pentium D 840 (WinXP 32/32 Bit)	10.47
Intel Pentium D 840 (WinXP 64/32 Bit)	10.47
Intel Pentium D 840 (WinXP 64/64 Bit)	6.25
AMD Athlon64 FX-60 (WinXP 32/32 Bit)	7.64
AMD Athlon64 FX-60 (WinXP 64/32 Bit)	7.62
AMD Athlon64 FX-60 (WinXP 64/64 Bit)	3.31
AMD Athlon64 4000+ (WinXP 32/32 Bit)	8.14
AMD Athlon64 4000+ (WinXP 64/32 Bit)	8.13
AMD Athlon64 4000+ (WinXP 64/64 Bit)	3.69
AMD Athlon64 FX-62 (WinXP 32/32 Bit)	7.28
AMD Athlon64 FX-62 (WinXP 64/32 Bit)	7.28
AMD Athlon64 FX-62 (WinXP 64/64 Bit)	3.12
AMD Athlon64 X2 5000+ (WinXP 32/32 Bit)	7.83
AMD Athlon64 X2 5000+ (WinXP 64/32 Bit)	7.82
AMD Athlon64 X2 5000+ (WinXP 64/64 Bit)	3.47
AMD Athlon64 X2 4800+ (WinXP 32/32 Bit)	8.31
AMD Athlon64 X2 4800+ (WinXP 64/32 Bit)	8.31
AMD Athlon64 X2 4800+ (WinXP 64/64 Bit)	3.76
AMD Sempron 3600+ (WinXP 32/32 Bit)	9.38
AMD Sempron 3600+ (WinXP 64/32 Bit)	9.38
AMD Sempron 3600+ (WinXP 64/64 Bit)	4.57
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory WinXP 32/32 Bit)	5.54
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory WinXP 64/32 Bit)	5.53
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory WinXP 64/64 Bit)	1.83
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory WinXP 32/32 Bit)	5.63
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory WinXP 64/32 Bit)	5.63
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory WinXP 64/64 Bit)	1.88
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory WinXP 32/32 Bit)	5.87
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory WinXP 64/32 Bit)	5.87
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory WinXP 64/64 Bit)	2.03

It's pretty amazing the difference between the different platforms. The Intel Core 2 Duo E6750 has a ton of power... that should be pretty evident looking at these benchmark results!

DiVX Encoding	Source: PCStats

The DivX encoder benchmark contains both a 32-bit and a 64-bit benchmark that measures the performance of raw video encoding of the AMD optimized DivX video encoder version 503. The encoder has been optimized for AMD Athlon 64 and AMD Athlon 64 FX systems (both 32-bit and 64-bit). Lower is better.

DIVX Encoding
Processor:	Seconds	Ranking
Intel Core 2 Duo E6600 (WinXP 32/32 Bit)	7.845
Intel Core 2 Duo E6600 (WinXP 64/32 Bit)	7.843
Intel Core 2 Duo E6600 (WinXP 64/64 Bit)	4.842
Intel Pentium D 940 (WinXP 32/32 Bit)	10.462
Intel Pentium D 940 (WinXP 64/32 Bit)	10.461
Intel Pentium D 940 (WinXP 64/64 Bit)	8.85
Intel Pentium D 840 (WinXP 32/32 Bit)	12.435
Intel Pentium D 840 (WinXP 64/32 Bit)	12.435
Intel Pentium D 840 (WinXP 64/64 Bit)	10.42
AMD Athlon64 FX-60 (WinXP 32/32 Bit)	9.571
AMD Athlon64 FX-60 (WinXP 64/32 Bit)	9.565
AMD Athlon64 FX-60 (WinXP 64/64 Bit)	6.958
AMD Athlon64 4000+ (WinXP 32/32 Bit)	9.813
AMD Athlon64 4000+ (WinXP 64/32 Bit)	9.827
AMD Athlon64 4000+ (WinXP 64/64 Bit)	7.116
AMD Athlon64 FX-62 (WinXP 32/32 Bit)	9.156
AMD Athlon64 FX-62 (WinXP 64/32 Bit)	9.205
AMD Athlon64 FX-62 (WinXP 64/64 Bit)	6.347
AMD Athlon64 X2 5000+ (WinXP 32/32 Bit)	9.622
AMD Athlon64 X2 5000+ (WinXP 64/32 Bit)	9.635
AMD Athlon64 X2 5000+ (WinXP 64/64 Bit)	7.031
AMD Athlon64 X2 4800+ (WinXP 32/32 Bit)	10.032
AMD Athlon64 X2 4800+ (WinXP 64/32 Bit)	10.025
AMD Athlon64 X2 4800+ (WinXP 64/64 Bit)	7.345
AMD Sempron 3600+ (WinXP 32/32 Bit)	12.387
AMD Sempron 3600+ (WinXP 64/32 Bit)	12.341
AMD Sempron 3600+ (WinXP 64/64 Bit)	9.662
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory WinXP 32/32 Bit)	7.145
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory WinXP 64/32 Bit)	7.122
Intel Core 2 Duo E6750 (nVIDIA nForce 650i DDR2 memory WinXP 64/64 Bit)	3.942
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory WinXP 32/32 Bit)	7.257
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory WinXP 64/32 Bit)	7.263
Intel Core 2 Duo E6750 (Intel P35 Express DDR2 memory WinXP 64/64 Bit)	3.998
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory WinXP 32/32 Bit)	7.237
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory WinXP 64/32 Bit)	7.241
Intel Core 2 Duo E6750 (Intel P35 Express DDR3 memory WinXP 64/64 Bit)	4.024

If you're doing a lot of data compression on the PC, definitely look into the Intel Core 2 Duo E6750 processor. It has plenty of power to go around, no matter what you're doing.