PowerPC G4:

(chronos:18:33)% wget http://dax.prolixium.com/32MiB.bin
--2009-03-09 18:33:13--  http://dax.prolixium.com/32MiB.bin
Resolving dax.prolixium.com... 10.3.4.6, 2001:470:8ad6:4::a
Connecting to dax.prolixium.com|10.3.4.6|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 33554432 (32M) [application/octet-stream]
Saving to: `32MiB.bin'

100%[=======================================>] 33,554,432   608K/s   in 41s    

2009-03-09 18:33:54 (792 KB/s) - `32MiB.bin' saved [33554432/33554432]

(chronos:18:35)% time bzip2 -9 32MiB.bin 
bzip2 -9 32MiB.bin  38.28s user 0.68s system 97% cpu 39.772 total

Intel Core 2:

(odyssey:23:24)% wget http://dax.prolixium.com/32MiB.bin
--2009-03-09 23:25:05--  http://dax.prolixium.com/32MiB.bin
Resolving dax.prolixium.com... 10.3.4.6, 2001:470:8ad6:4::a
Connecting to dax.prolixium.com|10.3.4.6|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 33554432 (32M) [application/octet-stream]
Saving to: `32MiB.bin'

100%[======================================>] 33,554,432   915K/s   in 36s     

2009-03-09 23:25:41 (904 KB/s) - `32MiB.bin' saved [33554432/33554432]

(odyssey:23:25)% time bzip2 -9 32MiB.bin
bzip2 -9 32MiB.bin  10.13s user 0.23s system 95% cpu 10.879 total