View Single Post
  #8 (permalink)  
Old 18th December, 2004, 11:39 AM
Aedan Aedan is offline
Chief Systems Administrator
Join Date: September 2001
Location: Europe
Posts: 13,075

Originally Posted by XeroHouR
64 bit means 64 bit alu's which means double the execution units getting done.
It doesn't mean double the execution units. A 64bit ALU (arithmetic logic unit) simply means it can handle 64bit numbers. You don't need a 64bit processor in order to have a 64bit ALU. For example, the MMX operations work on 64bit numbers, which means that MMX instructions are already using 64bit ALU. In fact, both SSE and SSE2 are already operating on 128bit numbers, so there is a 128bit ALU in there!
Any views, thoughts and opinions are entirely my own. They don't necessarily represent those of my employer (BlackBerry).
Reply With Quote