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- From: REE700A@MAINE.MAINE.EDU
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: Cache speed for 50 MHz 486DX?
- Message-ID: <92312.160559REE700A@MAINE.MAINE.EDU>
- Date: 7 Nov 92 21:05:59 GMT
- References: <1992Nov4.162247.10869@lth.se>
- Organization: University of Maine System
- Lines: 11
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- You got screwed! Yes, the cache must be less than 20 nS...
- Considerably less, given a couple nD for address set up and data latch and
- another 5-6 nS for the lookup (ie is the data in the cache? operation).
-
- I am told 5 nS tags (commonly built into controllers for direct mapped) and 10-
- 12 nS cache SRAMS. You just bought a DX50 that will be outperformed by (or at
- least matched by) DX33's, as well as DX2/50's! Thank god (or whatever) that
- the internal 8K cache is fairly effective!
-
- Jeff Andle In search of a new sig! DOD #3005 1976 KZ 900
-