Quick uestion..

[Tracer]

x86_64 is fully compatable with x86? or not?

[ilja]

not
x86_64 is compiled for AMD64

[Tracer]

full Backwards compatable, like you can run x86 bin on x86_64? or not? becuase my processor will run both os's... and I like compatability

[ilja]

*moved*

afaik you can use x86 packages, libraries and so on, but they won't use the 64kbit possibilities of the processor.

[Bana]

Yes, Ilja is correct. On a x86_64 processor (AMD64) you can run x86 binaries and libs in your x86_64 OS, they just won't run quite as fast and also are harder to setup (with multi arch libraries).