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- From: temple@ucbeh.san.uc.edu
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: Daystar Powercache (need info...)
- Message-ID: <1992Sep14.125550.1748@ucbeh.san.uc.edu>
- Date: 14 Sep 92 12:55:50 EST
- References: <1992Sep13.030822.21282@nwnexus.WA.COM> <1901vqINNkah@burr.cs.utexas.edu> <1992Sep13.214046.7300@nwnexus.WA.COM> <1913mpINNfvb@mohawk.cs.utexas.edu>
- Distribution: world
- Organization: Univ. of Cincinnati
- Lines: 24
-
- In article <1913mpINNfvb@mohawk.cs.utexas.edu>, newton@cs.utexas.edu (Peter Newton) writes:
- >> I expect that the 33mhz '040 PowerCache due out soon will beat the
- >> Quadra 700 and 900 on the Math and CPU related stuff, and be very
- >> close to (possibly even ahead of) the Quadra 950 in these areas. The
- >> 16-bit data path of the LC II has very little effect once you go to an
- >> external cache.
- >
- > I wonder. Just how much cache memory comes with with Daystar
- > PowerCaches? One problem with with small benchmarks like those built
- > into speedometer is that they tend to fit entirely within even fairly
- > modest caches. Things might be a bit different with production sized
- > apps, depending on their locality. It would be interesting to do some
- > timings with larger programs.
- > --
-
-
- The PowerCaches have only 32K of fast RAM for the cache. Most
- benchmarks I have seen have not found significant difference using
- this amount versus a larger amount (up to 128K).
- Whether the benchmarks themselves can fit entirely into 32K,
- I have no idea. Certainly, today this doesn't seem like very much
- room at all, even if it is sufficient as a cache.
-
- Jon
-