Well, to get the discussion away from uploading problems...

I've been looking at some review sites, and found this:

http://www.tomshardware.com/cpu/20041221/cpu_charts-22.html

This great comparison shows all the Intel 800mhz bus CPUs as blowing away the fastest current AMD CPUs, in the one area of whetstones.

On the other hand, the amd 64's use 30% less power than equiv P4s.

I'm about ready to upgrade an old box, with new mobo & processor. Can't decide which way to go. Like to spend not much more than $350-$400 for mobo & cpu...

Don

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Don, I just got this AMD64 Athlon 3700+ 1M ram laptop and I'm doing a Seti WU between 53 and 1:20 minutes. PPAH in 24-26 minutes, LHC in 2:26. The seti application files are the Optimized ones. OH yeah, Seti/Beta WUs in 5 hour flat.

I like it

I'm just using a plain old Dell Dimension 2400, 2.6ghz 512 mb Ram, just their base system. I'm usually able to churn out 1-2 wu's a day, as I just changed my settings around to crunch more seti wu's than einstein. I'd like a faster machine, but this one will work for now. I'm no good at building a computer from the ground up, but maybe one day I'll learn. :-)

Jeremy

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I'm about ready to upgrade an old box, with new mobo & processor. Can't decide which way to go. Like to spend not much more than $350-$400 for mobo & cpu...

Can't beat a Fry's special, if you live close enough to get one:

- P4 3.2GHz 800FSB w/HT ($179)
- Throw away the ECS mobo that comes with it
- Asus P4S800DX or Abit VT7 motherboard ($69)
- 2 sticks of Corsair 512MB DDR400 in dual-channel mode ($24 each)

... and you're there. Processing time is 1.5 hours per TWO work units in HT mode in Win XP (S@H optimized version).

Tony

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Or if you want to clock it up and really knock em out.
http://www.newegg.com/Product/Product.asp?Item=N82E16813127203

http://www.newegg.com/Product/Product.asp?Item=N82E16819116197

with decent ram, power supply and cooling overclocking is a breeze. If you just want to run stock this set up will crunch very well. My rig @ 3.6 does 2 wus in about 4700 seconds. This is with Optimized seti application files, mmciastro mentioned above.

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I'm about ready to upgrade an old box, with new mobo & processor. Can't decide which way to go. Like to spend not much more than $350-$400 for mobo & cpu...

Can't beat a Fry's special, if you live close enough to get one:

- P4 3.2GHz 800FSB w/HT ($179)
- Throw away the ECS mobo that comes with it
- Asus P4S800DX or Abit VT7 motherboard ($69)
- 2 sticks of Corsair 512MB DDR400 in dual-channel mode ($24 each)

... and you're there. Processing time is 1.5 hours per TWO work units in HT mode in Win XP (S@H optimized version).

Tony

Agreed. A P4 3.2GHz with hyperthreading should do 2 WUs in 1.5 hours (averaging 45 mins per WU). You just can't beat that for price/performance with an AMD at the moment. Only problem with these chips is they run far too hot so highend air cooling is a must if you're going to run seti 24/7 on it.

Ned

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*** My Guide to Compiling Optimised BOINC and SETI Clients ***
*** Download Optimised BOINC and SETI Clients for Linux Here ***

I do like the price/performance of that abit AS8-V mobo!

But it is so hard to tell, which processors do what, with Prescott's having worse heat problems, and lower floating point scores than the northwood's. Do you guys know which 3.2 is on sale at fry's?

Does the stock intel HSF do the job, as long as it is in a good case? Or what do you guys use?

I'm also toying with the idea of plugging an AMD Mobile Athlon 3000, (266fsb), in place of my existing Athlon XP 2100. Thought it would be interesting to get the most flops/watt... Anyone ever run one?

Is there a way to search for what CPUs are doing what rates of work? Besides trying to just browse around, and hope that some single cpu system shows up in the top 100 one day...

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Does the stock intel HSF do the job, as long as it is in a good case? Or what do you guys use?

The stock heatsink and fan are fine provided that you have a case with good ventilation and do not overclock.

Putting the new P4 processors in a low ventalation system is not something I would do even with a great HSF setup. For aftermarket HSF you'll have to ask the overclocking crowd.

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7,049 S@H Classic Credits

"I'm also toying with the idea of plugging an AMD Mobile Athlon 3000, (266fsb), in place of my existing Athlon XP 2100. Thought it would be interesting to get the most flops/watt... Anyone ever run one?"

Never tried a Mobile 3000 yet but I do run a Mobile XP 2500 on an Abit NF7 S Rev 2 in my box and am quite pleased with the WU output of it. The 2500 Mobile comes multiplier unlocked and I have it overclocked from the stock 1.83 Ghz to 2.55 Ghz. It has been crunching Seti Classic/Boinc this way 24/7 for over 3 years now without any problems. The XP 2500 Mobile running at 2.55 Ghz has an effective performance rating of a XP 3800. My usual RAC with this setup is around 350-370 and I usually crunch around 13-15 WU's/day.

Never tried a Mobile 3000 yet but I do run a Mobile XP 2500 on an Abit NF7 S Rev 2 in my box and am quite pleased with the WU output of it. The 2500 Mobile comes multiplier unlocked and I have it overclocked from the stock 1.83 Ghz to 2.55 Ghz. It has been crunching Seti Classic/Boinc this way 24/7 for over 3 years now without any problems. The XP 2500 Mobile running at 2.55 Ghz has an effective performance rating of a XP 3800. My usual RAC with this setup is around 350-370 and I usually crunch around 13-15 WU's/day.

Great to know! Thanks for the info. I've just ordered the 3000 from newegg. I like having both platforms, and think it is a good time to wait on mobo upgrades, since I don't want to invest in any more DDR, and DDR2 is still high on the price curve.

So, rather than possibly replacing my "old" athlon xp2100 system, with a new P4 board, I'm just going to upgrade the CPU.

Then, it is really tempting now, to replace the P4-2.4 533 non-ht, with a P4-3.06 northwood 533, which rates higher whetstones than a P4-3.4, Prescott, and just short of the P4-650!

This is the host "hal", which is currently running whole system overclocked by 10%, and solid as a rock. Very good DDR 400 ram, in a DDR333 system.

http://setiathome.berkeley.edu/show_host_detail.php?hostid=1161224

If the 3.06 overclocks less, then it may not be worth it. Any ideas? I'm already getting 1748 mflops, with the optimized CC. But the 306 would give me HT, so nearly double throughput..??

What sorts of bionc benchmark mflops are you all getting?

Thanks for the help, everybody!

Don

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AMD64 mobile Athlon 3700+

MFPOPS 2226
MIOPS 4225

from Boinc:

7/21/2005 11:06:53 AM|| Number of CPUs: 1
7/21/2005 11:06:53 AM|| 2227 double precision MIPS (Whetstone) per CPU
7/21/2005 11:06:53 AM|| 4225 integer MIPS (Dhrystone) per CPU

AMD64 mobile Athlon 3700+

MFPOPS 2226
MIOPS 4225

from Boinc:

7/21/2005 11:06:53 AM|| Number of CPUs: 1
7/21/2005 11:06:53 AM|| 2227 double precision MIPS (Whetstone) per CPU
7/21/2005 11:06:53 AM|| 4225 integer MIPS (Dhrystone) per CPU

Sweet! But those sure are pricey yet...

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Sweet! But those sure are pricey yet...

Sssssssh! Don't tell the wife, I got this laptop last week, and she doesn't know yet. "They're cheap I tell you" "Cheap" LOL

AMD XP 2500 Mobile 512KB L2 OverClocked to 2.55Ghz

005-07-20 17:43:49 [---] Benchmark results:
2005-07-20 17:43:49 [---] Number of CPUs: 1
2005-07-20 17:43:49 [---] 2231 double precision MIPS (Whetstone) per CPU
2005-07-20 17:43:49 [---] 5244 integer MIPS (Dhrystone) per CPU
2005-07-20 17:43:49 [---] Finished CPU benchmarks

7/21/2005 11:06:53 AM|| 2227 double precision MIPS (Whetstone) per CPU
7/21/2005 11:06:53 AM|| 4225 integer MIPS (Dhrystone) per CPU

Which is more important the Whetstone or the Dhrystone? My computer right now(AMD 64 3000+ OCed to 2 ghz, 512mb RAM) has 2394.39 MIPS Whetstone and 3680.43 MIPS Dhrystone. Or at least thats what my computer's page says.

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Join the team, SETI.USA We are growing and could use your help to overcome SETI.Germany...www.setiusa.net

AMD64 mobile Athlon 3700+

MFPOPS 2226
MIOPS 4225

from Boinc:

7/21/2005 11:06:53 AM|| Number of CPUs: 1
7/21/2005 11:06:53 AM|| 2227 double precision MIPS (Whetstone) per CPU
7/21/2005 11:06:53 AM|| 4225 integer MIPS (Dhrystone) per CPU

Very nice. You're in between my two 3400+ for FP, but beat them both on Integer.......must be the 1Mb cache.

7/21/2005 11:06:53 AM|| 2227 double precision MIPS (Whetstone) per CPU
7/21/2005 11:06:53 AM|| 4225 integer MIPS (Dhrystone) per CPU

Which is more important the Whetstone or the Dhrystone?

Credit is a function of Whetstone + Dhrystone so it's the total, not either individually.

See here for more info and formula:

http://www.pperry.f2s.com/boinc-credit.htm

Ned

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*** My Guide to Compiling Optimised BOINC and SETI Clients ***
*** Download Optimised BOINC and SETI Clients for Linux Here ***

Which is more important the Whetstone or the Dhrystone?

Credit is a function of Whetstone + Dhrystone so it's the total, not either individually.

See here for more info and formula:

http://www.pperry.f2s.com/boinc-credit.htm

Ned

Ok, but which actually has more of a difference in performance... Getting the Work Units done. Or is that the same?

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Join the team, SETI.USA We are growing and could use your help to overcome SETI.Germany...www.setiusa.net

Ok, but which actually has more of a difference in performance... Getting the Work Units done. Or is that the same?

Both ...

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Hi htrae, and all.

I've got my mobile ath-xp 3000 up and running. Speced at 2.2GHz/133-fsb, running at 2.47/206! So the fsb is just above full ddr400 speed. Can't get prime95 stable, with any higher core speed yet.

htrae, what v-core and what cooler are you using?

It might be better for us to take this discussion off line..?? derway earthlink dot net..

Anyway, for the record here are the stats:

7/26/2005 7:32:41 PM|| 2191 double precision MIPS (Whetstone) per CPU
7/26/2005 7:32:41 PM|| 4601 integer MIPS (Dhrystone) per CPU

Not bad for a 60 watt processor!! Almost as good as mmciastro's amd64.. But we'll have to wait and see what the real throughput is, but with the fast fsb, it ought to be fine.

My shuttle xpc P4 2.4/533 (nonht), gives this:

7/26/2005 8:24:39 PM|| 1761 double precision MIPS (Whetstone) per CPU
7/26/2005 8:24:39 PM|| 3671 integer MIPS (Dhrystone) per CPU

Thanks for the help, you all.

Don

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