64-Bit is not really about performance, it's about being able to address a ton of memory. Only memory hungry apps will perform better on a 64-Bit system, and there are not many of those on the market. To close the circle, it also only makes sense to install a 64-Bit Windows operating system if you have more than 3 GB of RAM in your system (32-Bit Windows only addresses a maximum of 3.3 GB RAM).
I think getting suitable drivers for the 64-Bit systems should still be the biggest problem, not the application compatibility.
In any case, I wouldn't invest in the past. Go for 64-Bit Vista.
I think getting suitable drivers for the 64-Bit systems should still be the biggest problem, not the application compatibility.
In any case, I wouldn't invest in the past. Go for 64-Bit Vista.