Pentium 4 Question..... whats the size of the cache?

[halik]

I thought it was 512K on die cache. Ive fot 2.8 HT at home and now work bought me a brand new spanking project server with 2.8HT thats got 1024Kb cache (1 meg)....whats the deal?

That server is sweet btw....18k scsi, decked out ram, serverworks etc.

 

[KK]

Originally posted by: halik
I thought it was 512K on die cache. Ive fot 2.8 HT at home and now work bought me a brand new spanking project server with 2.8HT thats got 1024Kb cache (1 meg)....whats the deal?

That server is sweet btw....18k scsi, decked out ram, serverworks etc.

They also have ones with 2MB. From what I read the 1MB ones are not much better than the 512KB ones.

KK

 

[dullard]

The Northwoods (512 kB cache) are being phased out by Prescott (1 MB cache). This saves Intel a lot of money (smaller process means more chips per wafer). Unfortunately for usesrs at the 2.8 GHz level, the Northwood is typically faster at current programs (newer programs may show a different trend when they use the additional Prescott instructions).

 

[halik]

Originally posted by: dullard
The Northwoods (512 kB cache) are being phased out by Prescott (1 MB cache). This saves Intel a lot of money (smaller process means more chips per wafer). Unfortunately for usesrs at the 2.8 GHz level, the Northwood is typically faster at current programs (newer programs may show a different trend when they use the additional Prescott instructions).

odd,
all held constant the chip with more cache should be faster.

 

[remagavon]

The prescott has 10 or so more stages in the pipeline than the northwood, so it's slower clock for clock.

 

[Viper GTS]

Originally posted by: halik

Originally posted by: dullard
The Northwoods (512 kB cache) are being phased out by Prescott (1 MB cache). This saves Intel a lot of money (smaller process means more chips per wafer). Unfortunately for usesrs at the 2.8 GHz level, the Northwood is typically faster at current programs (newer programs may show a different trend when they use the additional Prescott instructions).

odd,
all held constant the chip with more cache should be faster.

It's not held constant, Prescott has a MUCH longer pipeline.

http://www.anandtech.com/cpu/showdoc.html?i=1956

Viper GTS

 

[LTC8K6]

Is the one in the server a P4 Xeon?