What's the "A" stand for after 2.0A Ghz...

[yjeep93]

Is a P4 2.0Ghz Northwood better/faster than P4 2.0A Ghz processor? I just don't know the difference, thanks!

jonathan

Will either of them work with an Asus P4S533 SIS645DX

[Baddog]

The Northwood core differs from the regular Pentium 4 PGA- 478’s due to its 0.13-micron copper process core and 512KB of on-die L2 cache. The 2GHz is distinguished from the older 0.18-micron Pentium 4 PGA-478 2GHz by way of its BIOS identification that ID’s it as a Pentium 4 2.00A GHz instead of 2.00GHz.

[Malaflam]

Im not totally positive and I'm sure someone will post who is but I think the A just stands for a newer version of the P4 2.0ghz chip they came out with that uses less voltage and has a larger on cache size. And yeah I think it should work with that Asus mobo. I wish I could be completely positive about that answer but I'm nowhere near as computer savy as most of the people here. I'm still in training!:p

[yjeep93]

What i just understood: the 2.0A does have the .13-micron copper process core

[Baddog]

Latest 533 MHz FSB P4 CPU Support
The latest P4S533 motherboard supports Socket 478 Intel® P4 processors, which utilize the most advanced 0.13um process technology to provide frequencies up to 2.2GHz, delivering robust features and performance for your digital world. The Intel® P4 offers optimized performance for audio, video, and Internet applications. The 533MHz FSB increases bandwidth and improves overall system performance.


As found HERE (http://usa.asus.com/mb/socket478/p4s533/overview.htm)

[Swordfish]

Pentium IV 2Ghz (http://processorfinder.intel.com/scripts/details.asp?sSpec=SL5UH&ProcFam=483&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL)

Pentium IV 2A Ghz (1) (http://processorfinder.intel.com/scripts/details.asp?sSpec=SL68R&ProcFam=483&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL)

Pentium IV 2A Ghz (2) (http://processorfinder.intel.com/scripts/details.asp?sSpec=SL66R&ProcFam=483&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL)

Pentium IV 2A Ghz (3) (http://processorfinder.intel.com/scripts/details.asp?sSpec=SL62Q&ProcFam=483&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL)

Pentium IV 2A Ghz (4) (http://processorfinder.intel.com/scripts/details.asp?sSpec=SL5YR&ProcFam=483&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL)

Pentium IV 2A Ghz (5) (http://processorfinder.intel.com/scripts/details.asp?sSpec=SL5ZT&ProcFam=483&PkgType=ALL&SysBusSpd=ALL&CorSpd=ALL)

[NDD]

"A" is for Northwood core.
"B" is for 533MHz FSB.

"B" goes with "A", since 533MHz FSB available for Northwood CPUs ONLY.

From here (http://www.sysopt.com/forum/showthread.php?s=&threadid=116306).