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Subject: Re: For Bob Hyatt

Author: Matt Taylor

Date: 21:39:57 02/18/03

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On February 18, 2003 at 17:35:00, Charles Worthington wrote:

>On February 18, 2003 at 17:03:12, Matt Taylor wrote:
>
>>On February 18, 2003 at 12:53:14, Charles Worthington wrote:
>>
>>>On February 18, 2003 at 12:02:36, Robert Hyatt wrote:
>>>
>>>>On February 17, 2003 at 23:51:46, Charles Worthington wrote:
>>>>
>>>>>Bob please tell me that I didn't just spend 18,900$ on this Dual 3.06 xeon
>>>>>ststem for no reason...I certainly hope there will be a significant performance
>>>>>increase over the amd 2400mp and xp. The fastest AMD on playchess pulls around
>>>>>2300 kns with deep fritz 7. I had hoped with dual 3.06 xeons and the new intel
>>>>>E7505 chipset i would exceed 3000 kNs. Was this unreasonable of me to expect
>>>>>this much speed?
>>>>
>>>>
>>>>I hope you didn't really mean "18,900 dollars".
>>>>
>>>>Current prices are:
>>>>
>>>>dual 2.8xeon + chassis + 2gb RAM, plus 2 x 36 gig U320 15K scsi drives, plus the
>>>>usual HD power supply, etc, for under $4,000.  You mentioned 146 gig scsi
>>>>drives.
>>>>I bought three of those for my new ftp machine (there are no 15K 146 gig SCSI
>>>>drives that I am aware of so you take a rotational latency performance hit by
>>>>backing
>>>>off to 10K) and paid just under $1,000 each at MicroWarehouse.
>>>>
>>>>If you meant 8,900, that is closer to reality, although it seems high to me
>>>>looking at
>>>>dell prices.
>>>>
>>>>I can't answer the speed issue with respect to fritz.  Crafty on my dual 2.8
>>>>runs at about
>>>>2.5M nodes per second.  This is with the quad-pumped 100mhz (400mhz claimed)
>>>>FSB.
>>>>Newer xeons are quad-pumped 133mhz (533mhz claimed) and should be even faster.
>>>>I'd
>>>>suspect Crafty might get close to 3M on that machine, in a position where it
>>>>gets 2.5M on
>>>>mine.  I have no idea whether fritz is faster or slower in raw NPS however...
>>>My mistake...the drives are 10,000 RPM BOB but the price quote is correct. I
>>>bought the machine with all available options including the 4GB RAM and filled
>>>all hard drive bays with the largest drives. The biggest expense though was the
>>>memory. around 4 thousand if i remember right
>>
>>WHAT?!?
>>
>>Last April, I paid $330 for 1 GB Reg/ECC pc2100 CL 3 ram. Prices have not risen
>>-that- much.
>>
>>With 4 slots, that means I get up to 4 GB. I actually only get 3.5-3.8 GB with 4
>>1 GB DIMMs because of memory-mapped I/O. (Whether this is a limitation of the
>>AMD chipset, the Athlon, or the hardware I do not know. I think it is likely
>>that the Pentium 4 Xeon systems have similar limitations.)
>>
>>-Matt
>
>
>The Memory in question Matt is the new DDR266 SDRAM. Prices at Dell.com are
>cuurently in the $4,000.00 neighborhood for 4GB (1GB DIMMS). I thought it was
>way expensive as well but far preferable in performance to the RDRAM I have in
>my current Dell Machine. It is PC800 and is not the best of performers.

Please explain. New? "DDR266" is the same thing as pc2100, the same thing as the
ram I bought 10 months ago for $330. Four would cost $1,320, not $4,000.

I am sure the pc800 ram would blow pc2100 DDR SDRAM away in some things. Maybe
not chess, but in other things...

-Matt



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