To: Zeuspaul who wrote (4829 ) 1/10/1999 7:45:00 AM From: wily Read Replies (2) | Respond to of 14778
I haven't studied these things that much, so this is my skeletal understanding (Disclaimer: parts of this may mangle reality): Intel designed the Pentium II to exist on a board (or a cartridge) that would also house the level II cache. This would enable a higher bus speed between the two. Kind of a compromise between having the level II cache on the MB and having it right on the CPU. Putting it on the MB makes it easier to have a large one but it is slower; having it on the CPU makes it as fast as the CPU, but it is difficult to make it large. Now, for reasons of competition with AMD, Intel needed a fast processor (the PII was fast) that was cheap (the PII wasn't). So, they stripped away from the PII the thing that was making it expensive -- the level II cache and the cartridge that carried it. Result: PII Celeron. Problem: poor performance or lousy reviews or both. Remedy: Put a little bit of level II cache right on the CPU (128KB). Result: CPU still cheap, people love it. Call it the PII Celeron with 128 cache or PII Celeron A or Celeron A. Note: All celerons are "clock-locked" (at 4.5 for the 300). They are overclocked by adjusting the FSB, say from 66MHz (300) to 100MH (450). I'm completely ignorant about this stuff, this is all simple regurgitation from the AnandTech review of the Celeron A. Hope it helps. Intel Celeron 300A Date:August 31, 1998 Type: CPU Manufacturer: Intel Author: Anand Lal Shimpi At under $200 there is no way you can go wrong with the Celeron 300A. As long as you are willing to accept the risks associated with overclocking, and have the confidence in your motherboard as well as your $180 processor investment, the Celeron 300A can't be turned down. A standard Celeron Cooler Master fan will be all you need to take advantage of the incredible overclocking capabilities of the new Celeron's, just make sure that when ordering you are placing an order for the correct item. There are two different 300MHz Celeron's, the 300A is the newest processor with the integrated 128KB of L2 cache. It looks like once again, Intel has rained on AMD's parade after the lengthy battle between AMD's K6-2 and Intel's Celeron, the microprocessor giant seems to have emerged victorious for yet another round. AMD's roadmap states that the K6-3 will be receiving a full 256KB of L2 cache integrated into the die later this year, if AMD can pull that off then Intel may have another reason to pursue a low cost chip such as the Celeron A, however until then, if you're looking for a new processor to build your computer around nothing can beat the Celeron A...toss in an ABIT BH6 into the combination and you've got one killer computer for a few hundred bucks. For the first time in quite a while, kudos to Intel on a job well done. -------------------------------------------------------------------------------- Intel Pentium II Celeron 300A processors provided courtesy of Azzo Computers and Treasure Chest Computersanandtech.com