blender benchmarking

This isn't an in-depth scientifically perfect benchmarking. It's a few quick test runs to get some rough comparisons.

Kernel? uname -m

x86_64 when it is an kernel 64 bits
i686 for 32 bits kernel

CPU? (not kernel)

cat /proc/cpuinfo

or:

grep flags /proc/cpuinfo

Under "flags" parameter, you will see various values. Among them, one is named "tm(transparent mode)" or "rm(real mode)" or "lm(long mode)"

rm means: 16 bit processor
tm means: 32 bit processor
lm means: 64 bit processor

Using study-grass-flowers-compositing-tree-v08-perf-test.blend to test Blender render times. Restarted Blender between every test.

Computer	CPU	RAM	GPU	OS	Blender version	Blender threads setting	Test 1	Test 2	Test 3
laptop	Intel dual core 64-bit 2.33GHz T7600	2.0 GB	GPU	Linux mint90 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686 i386 GNU/Linux	2.63 i686	auto detect: 2	2:15.01	2:25.07	2:17.01
laptop	Intel dual core 64-bit 2.33GHz T7600	2.0 GB	GPU	Linux mint90 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 i686 i386 GNU/Linux	2.63a i686	auto detect: 2	2:19.52	2:20.94	2:22.0
laptop	Intel dual core 64-bit 2.33GHz T7600	2.0 GB	GPU	Linux mint90v2 3.2.0-2-amd64 #1 SMP Sun Mar 4 22:48:17 UTC 2012 x86_64 GNU/Linux	2.63a x86_64	auto detect: 2	1:53.74	1:32.48	1:28.19
tower	AMD quad core 64-bit 2.6GHz Athlon II X4 620	3.2 GB	GPU	Linux asusv2 2.6.35-32-generic #67-Ubuntu SMP Mon Mar 5 19:35:26 UTC 2012 i686 GNU/Linux	2.63 i686	auto detect: 4	1:14.78	1:14.10	1:14.89
tower	AMD quad core 64-bit 2.6GHz Athlon II X4 620	3.2 GB	GPU	Linux asusv2 2.6.35-32-generic #67-Ubuntu SMP Mon Mar 5 19:35:26 UTC 2012 i686 GNU/Linux	2.63a i686	auto detect: 4	1:15.05	1:14.34	1:14.53
tower	AMD quad core 64-bit 2.6GHz Athlon II X4 620	3.2 GB	GPU	Linux asusv3 3.2.0-2-amd64 #1 SMP Sun Mar 4 22:48:17 UTC 2012 x86_64 GNU/Linux	2.63a x86_64	auto detect: 4	53.23	52.84	53.45