Heh yes i saw that but i was referring to the P4 XE with dual core and HT.. I do not think that that computers exhaust air is 39 degrees while running 4 SETI for 24H.. :)

//Vyper

Actually, I think 39 is pretty impressive if the ambient is mid 20's in Sweden. I've just been upstairs to my son's P4 3GHz, he's playing Everquest, his exhaust is 16 degrees above ambient, 39 - 40 degrees.

Andy

Are the BOINC CPU Benchmarks meaningful?

Like any other benchmark, they are only comparable to the same benchmark run by the same programme.
BOINC Whetstone & Dhrystones are not comparable to SANDRA Whetstone & Dhrystones are not comaparable to any other benchmarks Whetstone & Dhrystones.

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Grant
Darwin NT

Please tell me if this is bad, the air coming out of the back of my twin 3ghz P4 machine OCd to 3.4 ghz each is usually between 49C and 54C, this both PSU fan and rear mushroom fan close to the heatsinks for the processors, the system also has a mushroom fan in the front taking air in.

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Life on earth is the global equivalent of not storing things in the fridge.

Maybe someone can enlighten me here, I am planning on building a new cruncher in the future, and being an AMD fan, looking at an athlon 64 X2. I have looked at newegg.com and there seems to be a big dif in prices between the AMD duel cores and the intels. Why is this? Is it supply and demand? The supply chain? What am i missing?

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Maybe someone can enlighten me here, I am planning on building a new cruncher in the future, and being an AMD fan, looking at an athlon 64 X2. I have looked at newegg.com and there seems to be a big dif in prices between the AMD duel cores and the intels. Why is this? Is it supply and demand? The supply chain? What am i missing?

There is a difference, but in more then price. Intel has a low cost 820. There really isn't a direct counterpart on the AMD side. The AMD 64 X2 3800 really compares more against the Pentium D 830 for overall general performance. So the price difference isn't that great at that point. My AMD 4200 compares very favorably against my Pentium D 840, and actually has a slight performance edge. At this point, the D840, the cost is now comparable. The AMD 4800 will outperform the D840 EE in most areas. Again, not a big price difference.

Intel basically kludged together the Pentium 4 to make their first dual cores quickly, the goal to beat AMD to market. For a "kludge" the Pentium D is a pretty good chip. AMD designed their dual cores from the ground up. (Higher development costs) The end result however was some very efficient chips.

A factor to keep in mind with the current chips is also the energy usage. Despite higher initial costs, the ROI (return on investment) will be much better with the AMD's due to significantly lower energy consumption. The AMD's run cooler and use less electricity to provide comparable performance.

Of course, these are essentially first generation efforts for both companies. Next year is when the dual core market will become really competitive, as both companies continue to refine their products and bring out new innovations.

If you're looking for a dedicated cruncher, it depends on the project as to which chip will do the best job for the dollars. See my prior posts. Different projects do different types of calculations. SETI favors Intel with big L2 caches. Einstein and Predictor favor AMD. (Windows boxes only, I am not considering Macs or other platforms here).

The Pentium D is a good chip, but a bit of an energy hog. The AMD is pricier, but more effecient. I own one of each. Were I to add another box, I would go with the AMD at this time. Intel has some interesting stuff in their product pipeline come next year though.

If you are looking for general usage, or also a gamer, then the AMD wins hands down on value and performance(with a decent graphics card). AS a dedicated cruncher with the best cross project performance, I would recommend the AMD 4400 or 4800 if you can afford them. The extra cache will help on some projects. The 4200 is a great chip though, with a definite peformance booost over the 3800 and not that much of a higher price.

Hope that helped.

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Team MacNN - The best Macintosh team ever.

Yes, it did help. I am not up too much with intel designations, so I am not really framiliar with what is what from them. I am a big AMD fan right now, if intel steps back, well then, but right now seems like AMD offers me more bang for the buck. Very well aware of lower energy consumption, and heat generation in the AMD's I work in sheet-metal. I just got done working for about six months at intel, at the bower's campus, and a little at D2, had to keep lots of thoughts to myself!!

I am considering an 4400+, I believe that is reasonably priced, with a 1mg L2 cache, and from what i read on the boards here, that seems to help. I am crunching einstein, LHC, and seti, so i will be looking for a machine that is pretty well balanced as far as the dif projects are concerned.

Right now I am running a 3700+ with a 6800gt, built it for gaming, not much gaming lately, now that i finally got turned on to crunching!!!! I can't run it 24\7, wish i could though (long story, don't ask). It's turning out a wu @ an hour now with optimized client!!! They all seem to validating too.

.........sorry for rambling, and being disjointed, tired, need to sleep

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I do not think so,I do 4 WUs in about 1 1/2 hrs using opimized App and HT, so this means I do about 64 Wus a day plus .........P4 840ee HT 3.2 1gig ram.......X 2 = 128 a day.....

I will let you know, I just ordered a P4 D840EE with a FSB or 800mhz(3.2ghz).
They DO make one with a FSB of 1066mhz but it is not available by my local computer store. It runs at 3.7ghz.
My current AMD64 3200+ does one unit in about 90 minutes, this new machine should be a bit faster! MORE expensive too!

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Have anybody else checked out the zalman water cooling system? My roommate and I build a pentium 4 3.2 gig gaming pc with it and it keeps the processor at 30 degrees under a full load when it is OC'd by 5%. He has plans to get extra hose and another pump and put it in a freezer in another room and then oc'd it big time. This thing is pretty amazing. I wonder how far you OC before you start getting bum results from seti. I was thinking about bying one for my new build and just making a fan cage around it to cool it better but decided to go with out it.