System: Gentoo GNU/Linux x86_64 (base system 2.0.0)
Compiler: gcc-Version 4.3.2 (Gentoo 4.3.2-r3 p1.6, pie-10.1.5)
CFLAGS/Intel: -O3 -march=core2 -pipe
CFLAGS/AMD: -O3 -march=athlon64-sse3 -pipe
+CFLAGS: -mfpmath=sse,387 -funroll-loops -fomit-frame-pointer

Benchmark: Core 2 Q6600 (2.40GHz)	VS	Phenom X4 9650 (2.30GHz)
========================================================================
Package			Time A				Time B
------------------------------------------------------------------------
kdelibs-3.5.9		25m 29s				-
kdelibs-3.5.10		-				28m 5s
kdelibs-4.2.0		40m 17s				47m 20s
arts-3.5.9		2m 5s				-
arts-3.5.10		-				2m 41s
xorg-server-1.5.3	6m 49s				5m 36s

Further System Details
------------------------------------------------------------------------
Level 1 cache		32KB				64KB
Level 2 cache		2x 8MB shared			256KB
Level 3 cache		-				2MB shared

mainboard		Asus P5B E Plus			Asrock Alive-NF6G
memory controller	northbridge			built-in
bus system		FSB (over chipset)		hypertransport (direct)
system memory		2x Corsair XMS2 2GB 800MHz	1x Corsair XMS2 2GB 800MHz