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Article #23400

Re: Playstation 2 has as much FPU power as Merced?

#23400
From: Factory
Date: Fri, 05 Mar 1999 00:00
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In article <7bjr4a$cq2$1@nnrp1.dejanews.com>, aa158@valleynet.on.ca 
says...
> "The Playstation 2's CPU, jointly developed by Toshiba and SCE, is an enhanced
> version of the device described at ISSCC. The device has floating-point
> performance of 6.2 Gflops..."
> "Intel said Merced would achieve 3-Gflops extended-precision floating-point
> performance and 6-Gflops single-precision performance."

  Hmm I don't know about the merced, but from the specs I saw for the 
psx2 system, it has less registers (erm from what I remember 32 general 
regs, I assume the fp regs are similar), vs. the merced's 128 regs set 
(if I remember rightly).
  The caching on the psx2 was fairly unimpressive too, it had a 8k/16k 
instruction/data cache and 16k scratchpad mem, no mention was made of any 
other forms of caching. Considering that the current low end pentium 
class chips have much more caching, I do not doubt that the merced 
processors will have better caching.
  If those specs are roughly right (I'm doing this from memory..) I would 
expect the merced to out perform the psx2's cpu in real world work.
  
  Actually from looking at the specs of the psx2 I would guess that the 
complete system will perform as well as a tnt equipped celeron 400, but 
that is just a guess.
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From: faqtori@hotmail.com (Factory)
Subject: Re: Playstation 2 has as much FPU power as Merced?
Date: 1999/03/05
Message-ID: <MPG.1148ef176b46cee6989681@news.melbpc.org.au>
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References: <7bjr4a$cq2$1@nnrp1.dejanews.com>
Organization: Retro
Newsgroups: comp.arch,intel.etc,comp.games.development.industry,comp.sys.intel