Tech Support Forums - TechIMO.com - View Single Post - Celeron 256 cache-on-die Vs. Pentium3 256 cache-on-die: What's the Difference

AuraEdge · May 7th, 2002, 01:57 AM

The celeron up to 1.3Ghz is identical to the Pentium 3 Tualatin EXCEPT for the FSB, which is 100Mhz instead of 133Mhz.
This includes the associativity of the L2 Cache, which I think was 4-way associative on the old Coppermine-128 Celerons, and was 8-way on the Coppermine Pentium3's and the Tualatin Pentium3's. The L2 on the Tualatin Celerons run the full 8-way associative.

Here a link comparing the two - Celeron 1.3 vs. Duron 1.3

http://www.tomshardware.com/cpu/02q1/020121/index.html

Duron wins out in majority of tests, but its worth noting that the Celeron system is utilizing SDR SDRAM, while the Duron system is using DDR SDRAM, which may count for some of the difference.

There would be little point in using DDR even with a full pentium 3 with it's 133Mhz bus. with 100Mhz its even more pointless. The bus isnt wide enough in either case to well utilize 200Mhz/266Mhz (PC1600/PC2100) DDR SDRAM.

EDIT - Sorry I didnt realize you already bought the board and DDR SDRAM...I hope I didnt sound too brash.

EDIT2 - And as for the other issue - Intel never released a chipset for the Pentium3/Celeron that used DDR SDRAM. Thier all from Via/Sis/Ali. Seems they know it was kinda pointless, but the other manufacturers went and brought them out anyways, probably because they already had the memory DDR archtecture all done for Athlon boards, so they figured why the heck not. If you hadnt bought that board already, I would have either advised you to save a few bucks to buy a SDR SDRAM board instead, or to just go with the fast speed Duron if you were dead set on using DDR SDRAM, since you will see the difference more readily on the Duron (Esp. on a Via KT266a chipset).

May 7th, 2002, 01:57 AM	#7 (permalink)
AuraEdge Ultimate Member Join Date: Oct 2001 Location: Clifton, NJ Posts: 5,068	The celeron up to 1.3Ghz is identical to the Pentium 3 Tualatin EXCEPT for the FSB, which is 100Mhz instead of 133Mhz. This includes the associativity of the L2 Cache, which I think was 4-way associative on the old Coppermine-128 Celerons, and was 8-way on the Coppermine Pentium3's and the Tualatin Pentium3's. The L2 on the Tualatin Celerons run the full 8-way associative. Here a link comparing the two - Celeron 1.3 vs. Duron 1.3 http://www.tomshardware.com/cpu/02q1/020121/index.html Duron wins out in majority of tests, but its worth noting that the Celeron system is utilizing SDR SDRAM, while the Duron system is using DDR SDRAM, which may count for some of the difference. There would be little point in using DDR even with a full pentium 3 with it's 133Mhz bus. with 100Mhz its even more pointless. The bus isnt wide enough in either case to well utilize 200Mhz/266Mhz (PC1600/PC2100) DDR SDRAM. EDIT - Sorry I didnt realize you already bought the board and DDR SDRAM...I hope I didnt sound too brash. EDIT2 - And as for the other issue - Intel never released a chipset for the Pentium3/Celeron that used DDR SDRAM. Thier all from Via/Sis/Ali. Seems they know it was kinda pointless, but the other manufacturers went and brought them out anyways, probably because they already had the memory DDR archtecture all done for Athlon boards, so they figured why the heck not. If you hadnt bought that board already, I would have either advised you to save a few bucks to buy a SDR SDRAM board instead, or to just go with the fast speed Duron if you were dead set on using DDR SDRAM, since you will see the difference more readily on the Duron (Esp. on a Via KT266a chipset). Last edited by AuraEdge : May 7th, 2002 at 02:26 AM.