[hashcash] Re: Speed problem with 1.03 on Mac G4
- From: John Honan <jhonan@xxxxxxxxxxxxxxx>
- To: hashcash@xxxxxxxxxxxxx
- Date: Tue, 31 Aug 2004 14:24:58 +0100
Jonathan Morton wrote:
The dual-G5 Xserve is about 9 gigaflops, for $2,000. That's $222 per
gigaflop . A company called Orion Multisystems have just announced a
workstation offering between 18 and 36 gigaflops for about $9,000....
Works out at between $250 and $500 per gigaflop. But I wonder what
sort of hashing performance it would give?;
I have absolutely no idea. The gigaflop is a (crude) measure of FPU
performance, and hashcash doesn't touch the FPU at all. The Efficeon
is a weird chip, too, and it's very hard to predict how any particular
code will perform on it. It's even difficult to benchmark it, because
it changes the code out from under you by dynamic optimisation.
It's probably safe to say, however, that each Efficeon chip will be
considerably slower than each G5 chip, seeing as the G5 stands head
and shoulders above everything else in sight, and benchmarks show the
Efficeon as being slower than most of it's rivals.
Apple unveiled the new iMac G5 today... All this talk about G5's just
makes me want to go and buy one! :-)
http://news.bbc.co.uk/1/hi/technology/3613790.stm
*"Apple has unveiled its next generation of desktop computers, the iMac
G5, at the Apple Expo 2004 in Paris.* It is the first iMac to be powered
by the high-speed G5 processors, used in its Power Macs, and is touted
as the world's thinnest desktop computer."
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