Home of Lost Circuits heeft een review van de nieuwe AMD K6-2 380 met CXT core. Hier wat info over wat CXT is:
Most of you have already heard about the new AMD core called CXT, what's the benefit of this new feature? Well, Anand's tests showed the difference pretty nicely, compared to the old core there is at least a 5% increase in performance. Still, remember that for unleashing the potential benefit of the new core, an updated BIOS is necessary in order to extend the amount of write allocation. For those who don't have a suitable BIOS upgrade, there is still a way around, in form of a special software driver written by Andreas Stiller from the German "CT" magazine.
"Write Allocation" is a feature that works by grabbing not just a single instruction but actually a whole bunch of data at a time. To explain it in very trivial terms, one can use the example of a waiter in a breakfast restaurant. If there are four people coming in during breakfast time, the waiter could go and ask each one individually whether they wold like some coffee, go back to the kitchen, serve the coffee and then ask the next person. Alternatively, after he finds out that the first guest would like coffee, he figures that, because of the time of day everybody will have similar desires and simply carries as much coffee, milk and sugar with him as he suspects will be necessary. This way he does not have to return to the coffee machine but actually can deliver the goodies in one run instead of four. If his guess was wrong, then, of course he has to return.