What is the "A" for in Celerons?

[Dangermouse33]

ie Celeron 1A Ghz, 533A Ghz etc. And would a FC-PGA2 converter allow a MB that didn't support Celeron A processors to support them?

 

[Viper96720]

Revision kind of like the P4's got 2.4A then 2.4B now it's up to 2.4C

 

[DaveSimmons]

A = "different from the old type at the same speed"

for 300a it meant it had cache, while the 300 did not
for 533a it meant FCPGA instead of PPGA
for 1.0a it means Tualatin FCPGA2 instead of coppermine FCPGA

A "Slot-T" will let you use a 1.0A on some BX motherboards, a "Socket T" lets many i815 boards use it.

There have been threads on "Slot T" here and in Hot Deals, oyu might search for them (including archived threads)

Compgeeks.com was carrying a cheap slot T ($13 I think).

 

[GonzoDaGr8]

Celery A as in 66mhz FSB, socket370, and 128k on die cache. What board are you going to put this on? Socket 370 board or slot 1?
EDIT: Dave beat me to the post button and did a better job of answering. 😛

 

[mechBgon]

The A tells you that it's sort of the Mk. II version of whatever model it is. Celeron 1000 MHz is based on the Coppermine core and 0.18-micron process, Celeron 1000A MHz is based on Tualatin and 0.13-micron process.

With the Pentium4's, it appears that the "A" means "there are two types of these, both with 400MHz fsb, but this one has 512kb of L2 cache." (example: P4 1.8 and P4 1.8A, the A-core has 512kb L2)

A P4 "B" tells you "there are two types of these, and this one has 533MHz fsb instead of 400." (example: P4 2.4 and P4 2.4B)

A P4 "C" tells you "there are two types of these, and this one has 800MHz fsb."

So basically, get the one with the letter, if one has a letter and the other doesn't. If they both have letters, then A is good, B is better, C is best (with Pentium4's anyway, and assuming your platform supports what you're buying).

Where's Wingnutz to grade my essay? 😛 😉