Are the Xeon 2.66's 64bit ?

[zooburner]

Hiya there

I'm just wondering, are the Xeon 2.66 in the MacPro 32 or 64 bit processors ?
I'm asking because i understand 64 bit CPU's can handle more memory than 32bit cpu's

zoo

 

[robbieduncan]

All Xeons used in Mac Pros are 64-bit. All Mac Pros have supported more than 4Gb of RAM which is the 32-bit limit.

 

[DoFoT9]

theoretical max of like 512TB i think.....summin crazy