Replies to post #33788 on Advanced Micro Devices Inc (AMD)

[neye_eve]

DDB, sounds like a plan re: Dothan

Intel mentions following Dothan enhancements:
...
- and the 2MB L2

that's probably what I'd do if I were Intel as well:

1) they're good at cache - capitalize on a strength
2) cache isn't a high power-consuming feature, as I understand it
3) it can often mean a very significant performance gain
4) it's not like Intel's going to be capacity constrained on these.

Seems like more cache really is a good way for Intel to go, overall. AMD would probably love to know what INTC does about cache densities.

neye

[chipguy]

Do you have an URL handy for a Dothan photo?

[Petz]

Adding 64-bit capability to Pentium M would seem to be more difficult than adding 64-bit capability to Northwood. Why?

Because neither Pentium M nor its chipset (855) support > 32 address bits. P4 has long supported PAE 36-bit addressing in both the CPU and its server chipsets.

Another thing to keep in mind is that without PAE mode support, AMD's hardware anti-virus protection cannot be implemented in 32-bit mode.

In fact, 855PM datasheet says it only supports 2G of memory.

Petz