Messages in this thread | | | Date | Fri, 15 May 1998 15:32:46 -0500 | From | Noah Beck <> | Subject | Re: How to compile a Pentium II |
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H. Peter Anvin wrote: > Not really, but it's a technologically simpler device. Read: a PII > (Klamath) at the same frequency is slower than a PPro. However, it > seems Intel aren't as savvy at building SRAM as they are building > processors (which they are very savvy at), and the 1:1 in-package > custom cache die of the PPro in the end apparently turned out to be > clock-limiting and cost inefficient. You may want to note the Klamath > is a lot cheaper than the PPro (especially the PPro-512K) and is > available at higher frequencies. > > However, a *major* limitation of the Klamath and the other Slot 1 > processors is the limitation to two processors and 512 MB RAM.
Slot 1 processors still have 36 address lines for 64GB RAM, and some of the last 333MHz P-II's as well as all of the 350 and 400 MHz P-II's have up to 4 GB cacheable (previous P-II's were 512 MB cacheable) RAM. I don't know how much RAM the chipsets support, though. I looked up the 4 GB cacheable figure the other day because I saw somebody order a 400MHz P-II with 1GB RAM and wondered if that was going to be a slow system.
Two processors is still a limit, though. Xeon or whatever it's called will be the intended upgrade path for large PPro systems.
Noah
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