View source for Generic 64

{{Subarch
|CPU Family=64-bit Processors (PC-Compatible, Generic)
|release date=January 1, 2003
|releases=next
|subarch=generic_64
|arch=x86-64bit
|Description=The generic_64 subarch is designed to support all 64-bit PC-compatible CPUs (x86_64), from their initial release in 2003 to current.
|CHOST=x86_64-pc-linux-gnu
|CFLAGS=-mtune=generic -O2 -pipe
|USE=mmx sse sse2
}}
{{DockerBlurb}}

{{Warning|This subarch will run on all 64-bit PCs, but unless you need universal compatibility you may not get the absolute best performance
from this build of Funtoo. Consider using a more optimized build that meets all of your compatibility requirements. For example, [[intel64-nehalem]]
is more optimized but will still be compatible with all 64-bit Intel processors released since 2008 and all AMD processors released since 2011 ([[amd64-bulldozer]] and above.)}}


The '''generic_64''' subarch is designed to support 64-bit PC-compatible CPUs, such as the [[Wikipedia:AMD_K8|AMD K8-series processors]], which were introduced in late 2003. They were notable as the first processors that supported the [[Wikipedia:X86-64|AMD64 (also called X86-64) 64-bit instruction set]] for PC-compatible systems, which was introduced as a backwards-compatible 64-bit alternative to Intel's IA-64 architecture. Intel followed suit and also began supporting this 64-bit instruction set, which they called "[[Wikipedia:X86-64#Intel_64|Intel 64]]", by releasing X86-64 64-bit compatible CPUs from mid-2004 onwards (See [[Wikipedia:X86-64#Intel_64_implementations|Intel 64 implementations]].)

AMD desktop 64-bit CPUs include the Athlon 64, Athlon 64 FX, Athlon 64 X2, Athlon X2, Turion 64, Turion 64 X2 and Sempron series processors. AMD server processors were released under the Opteron brand and have codenames SledgeHammer, Venus, Troy, Athens, Denmark, Italy, Egypt, Santa Ana and Santa Rosa. All Opterons released through late 2006 were based on the K8 microarchitecture with original X86-64 instructions.