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 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
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

Time differences between all platforms are small, so it is difficult to tell the main difference between the slowest and fastest systems. The AMD Athlon64 X2 4800+ performs well and offers probably the best value of any AMD processor tested so far.

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:	FPS	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 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
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

The AMD Athlon64 X2 4800+ is very good at data crunching, it's able to complete DiVX encoding in 10 seconds when running the 32 bit version of the software. It's important to note, if you plan on jumping into WindowsXP 64 bit Edition, do yourself a favor and do your homework on 64 bit software compatibility first.