Subject: Re: Any experince with this alpha?
To: Chris G Demetriou <Chris_G_Demetriou@ux2.sp.cs.cmu.edu>
From: John C. Hayward <John.C.Hayward@wheaton.edu>
Date: 08/26/1996 15:33:38
First - Thanks to all the work Chris has done on the Alpha port (and
previously when he was part of core)
On Mon, 26 Aug 1996, Chris G Demetriou wrote:
> I ordered a couple of those machines, and also got 2 16MB simms for
Are the sims the same kind (72 pin with/wo parity) which are readily
available for the PC market?
> > I can get this system (without monitor) for $800 which seems like a good
> > bang for the buck.
> probably without monitor or keyboard, actually. 8-)
The keyboard LK411 (108 Key, Digital layout) Keyboard
is included in this price.
> It's an OK deal, i'd say. They're not incredibly speedy machines.
> I'd guess that an intel box would beat them in terms of
> price/performance, but i can't say for sure.
The 166MZ Pentium Pro chip is about $600 on the net.
The 166MZ Pentium chip is about $800. (I think Intel is trying to get
people on to the Pentium Pro).
However I checked out what benchmarks on the Intel processors are
Pentium(R) Pro Processor Benchmarks
150MHz 245.0 229.1
166MHz 293.1 274.7
180MHz 288.6 269.5
200MHz 320.2 298.2
Results measured on Intel Alder systems.
Pentium(R) Processor Systems
100MHz 137.7 126.2
120MHz 157.3 143.6
133MHz 174.2 160.5
150MHz 181.4 165.2
166MHz 197.5 181.6
While Dec-Alphas 21066A micro processor:
233-MHz, 166-MHz, and 100-MHz operation
Superscalar (dual issue)
Peak instruction execution rate of 466 MIPS (233 MHz)
97 SPECint92 (estimated) (233)
112 SPECfp92 (estimated) (233)
189.5 V2.1 Dhrystone MIPS (233)
89.8 V2.1 Dhrystone MIPS (100)
Is it possible that the 166MHZ Alpha perform at 69 SPECint92 (97 * 166/233)
while the 100MHZ regular Pentium performs at 138 SPECint92 (_Twice_ the