SETI@home Processor Guide - Version 0.4

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Luke
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Message 957083 - Posted: 18 Dec 2009, 11:05:39 UTC
Last modified: 22 Dec 2009, 7:31:29 UTC

This is in its infancy, but I feel a need to collaborate all this information since it is a mess all around the internet, and I plan on adding a few more statistics. Eventually, I'd like to be able to compare RAC to the dollar ratios for all CPU's.

SETI@home Processor Guide

I may create a GPU guide as well, but that's later down the road.
Right now, I need ideas. Give me more columns, more processors, RAC stats, etc.

Post here with feedback. Remember, it's still in its infancy, and I will update it tomorrow.

- Luke.
- Luke.
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Message 957148 - Posted: 18 Dec 2009, 17:08:27 UTC
Last modified: 18 Dec 2009, 17:45:37 UTC

Another factor to figure in when trying to figure cost to crunch is power consumption. Comparing the i860 & the i930. The i930 uses about 30% more power, but does it give you 30% more performance.

I wonder if having average proccess times for the tasks would be good to include.
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Message 957188 - Posted: 18 Dec 2009, 19:12:02 UTC - in response to Message 957148.  

Another factor to figure in when trying to figure cost to crunch is power consumption.

I feel that power consumption needs to be measured at the wall socket with the many different computer configurations in use today.

As comparison my OEM i7 975 XE notebook with GTX 280M & RAID-0 3 X 80GB Intel SATA2 SS consumes about 235 watts. Now compare that to a OC’d i7 920 desktop with HHD & liquid cooling. I have no idea but guessing I would think maybe around 750 watts consumption.

I was hoping the “Credit per Watt” thread and spreadsheet would take on a life of its own so we can see some actual costs.

Measuring the bang for your buck can be tricky when comparing an OEM to custom owner built rigs. I also understand that many folks are not going to be comfortable with sharing this kind of information. Rightfully so. But if just a few do...

...
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Message 957194 - Posted: 18 Dec 2009, 19:29:43 UTC
Last modified: 18 Dec 2009, 19:30:04 UTC

I have just updated the sheet to version 0.1

Changes include:
Addition of Intel Core i5 & mobile Core i7
Created "Socket" column
Added RAC per dollar data for the i7 975 XE

Another factor to figure in when trying to figure cost to crunch is power consumption. Comparing the i860 & the i930. The i930 uses about 30% more power, but does it give you 30% more performance.

I wonder if having average proccess times for the tasks would be good to include.


Hmmm... I'm thinking most of that could be hard to implement. The process times especially since WU's differ in size.
- Luke.
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Message 957197 - Posted: 18 Dec 2009, 19:37:17 UTC - in response to Message 957188.  

Another factor to figure in when trying to figure cost to crunch is power consumption.

I feel that power consumption needs to be measured at the wall socket with the many different computer configurations in use today.

As comparison my OEM i7 975 XE notebook with GTX 280M & RAID-0 3 X 80GB Intel SATA2 SS consumes about 235 watts. Now compare that to a OC’d i7 920 desktop with HHD & liquid cooling. I have no idea but guessing I would think maybe around 750 watts consumption.

I was hoping the “Credit per Watt” thread and spreadsheet would take on a life of its own so we can see some actual costs.

Measuring the bang for your buck can be tricky when comparing an OEM to custom owner built rigs. I also understand that many folks are not going to be comfortable with sharing this kind of information. Rightfully so. But if just a few do...


It would be nice if the cpu makers would state the values for the processors at fulll oad & idle in their general info. Often people use the TDP number, myself included, as the power consumption. When it is really the amount of heat the cooling system needs to handle to keep the processor within it's operating limits.
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Message 957198 - Posted: 18 Dec 2009, 19:45:22 UTC - in response to Message 957197.  

It would be nice if the cpu makers would state the values for the processors at fulll oad & idle in their general info.
They won't, I'd guess. Even back when we did, the guaranteed maximum was the only value with any integrity behind it. We planned in advance to meet it, and tested the units as well. Anything on the data sheet marked "typical" often came straight from marketing. Internally there was not even the pretense that it really represented the center of the product distribution.

Because so much of the idle power is leakage, it is especially variable part to part. Since even the active power has a major leakage component, power dissipation is far less predictable sample to sample than in the old days.

If you care about power (and I do), you just need to figure on measuring the system yourself at the wall socket. I confess I've not gone the next step and measured at the UPS input. Since the box is not even warm to the touch, it can't be burning much.

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Message 957210 - Posted: 18 Dec 2009, 20:15:17 UTC - in response to Message 957194.  
Last modified: 18 Dec 2009, 20:23:24 UTC

I have just updated the sheet to version 0.1

Changes include:
Addition of Intel Core i5 & mobile Core i7
Created "Socket" column
Added RAC per dollar data for the i7 975 XE

Another factor to figure in when trying to figure cost to crunch is power consumption. Comparing the i860 & the i930. The i930 uses about 30% more power, but does it give you 30% more performance.

I wonder if having average proccess times for the tasks would be good to include.


Hmmm... I'm thinking most of that could be hard to implement. The process times especially since WU's differ in size.


Yeah it might be hard to do that.

Thi will amke it intrestings to see how the CPUs scale for processing S@H. I've noticed since I have 5 systems with old P4's from 3.0GHz to 3.8GHz their processing ability is not as linear as I would have first thought.
2.0GHz RAC ~280 (Northwood)
2.4GHz RAC ~350 (Northwood)
3.0GHz RAC ~600 (Northwood)
3.2GHz RAC ~700 (Northwood)
3.4GHz RAC ~800 (Prescott)
3.6GHz RAC ~830 (Prescott)
3.8GHz RAC ~870 (Prescott)
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Message 957251 - Posted: 18 Dec 2009, 22:03:19 UTC

You must also take into account the memory bus on the motherboard that you are testing folks.

If you think SETI is slow on a dual channel DDR 400Mhz board, try single channel!
Overclock with the MSI G31M3-L and Intel E8600 3.33Ghz
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Message 957306 - Posted: 19 Dec 2009, 1:43:00 UTC

My i7 with a GTX 275 and GTX 260 and triple channel memory, H50 with extra fan and 3 case fans draws 4 amps and my voltage measured is at 120V so my machine is using 480 watts from the wall. I slit the power cable and put my true RMS amp probe on it and then checked the voltage where it plugs in. I use a corsair 750 PS.
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Message 957326 - Posted: 19 Dec 2009, 3:24:30 UTC

I've just had the chance in between building my new desk to update and release version 0.2.

Changes Include:
    Added organization rows. Grey rows signify a change between a product series, and black rows signify a change between markets (laptop, desktop, server).
    All desktop Nehalem products now listed, including unreleased processors.
    Creation of a "Die Size" column
    Started work on "Core / Penryn" & "Sandy Bridge / Ivy Bridge" - change between sheets as needed.
    Addition of RAC per dollar for all Core i7 products (except those unreleased & the 870)

Help Needed:

    Find sSpec Number and Die Size for Core i5 6xx, Core i3 & Pentium G6950 series
    Find Die Size for all mobile Core i7 processors
    Find SETI@home RAC for Core i7 870

All other suggestions and comments are welcome...

- Luke.


- Luke.
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Message 957328 - Posted: 19 Dec 2009, 3:43:22 UTC - in response to Message 957326.  

I've just had the chance in between building my new desk to update and release version 0.2.

Changes Include:
    Added organization rows. Grey rows signify a change between a product series, and black rows signify a change between markets (laptop, desktop, server).
    All desktop Nehalem products now listed, including unreleased processors.
    Creation of a "Die Size" column
    Started work on "Core / Penryn" & "Sandy Bridge / Ivy Bridge" - change between sheets as needed.
    Addition of RAC per dollar for all Core i7 products (except those unreleased & the 870)

Help Needed:

    Find sSpec Number and Die Size for Core i5 6xx, Core i3 & Pentium G6950 series
    Find Die Size for all mobile Core i7 processors
    Find SETI@home RAC for Core i7 870

All other suggestions and comments are welcome...

- Luke.



Are you using http://processorfinder.intel.com for information?
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Message 957348 - Posted: 19 Dec 2009, 6:30:58 UTC - in response to Message 957328.  

I've just had the chance in between building my new desk to update and release version 0.2.

Changes Include:
    Added organization rows. Grey rows signify a change between a product series, and black rows signify a change between markets (laptop, desktop, server).
    All desktop Nehalem products now listed, including unreleased processors.
    Creation of a "Die Size" column
    Started work on "Core / Penryn" & "Sandy Bridge / Ivy Bridge" - change between sheets as needed.
    Addition of RAC per dollar for all Core i7 products (except those unreleased & the 870)

Help Needed:

    Find sSpec Number and Die Size for Core i5 6xx, Core i3 & Pentium G6950 series
    Find Die Size for all mobile Core i7 processors
    Find SETI@home RAC for Core i7 870

All other suggestions and comments are welcome...

- Luke.



Are you using http://processorfinder.intel.com for information?


Nope. I'm using a variety of reliable sources. Processor finder doesn't seem to list up and coming chips.
- Luke.
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Message 957363 - Posted: 19 Dec 2009, 9:06:57 UTC

Hey Luke!

Don't forget that there's Team Green too!
Not as prolific at the moment as Team Blue, but it is there, and I wouldn't be able to type this message to you if it wasn't!

regards, Gizbar.



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Message 957389 - Posted: 19 Dec 2009, 13:23:16 UTC - in response to Message 957083.  

The Dutch Seti did a real test.
http://www.seti.nl/cputijden_boinc.php

The best way to go is to use the same WU on all computers. To get the same meaningful results. In other words a benchmark WU.
On problem is newer CPU's go faster when there is only one WU running.
So running more WU at the exact same time is needed.
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Message 957438 - Posted: 19 Dec 2009, 20:32:05 UTC - in response to Message 957363.  

Hey Luke!

Don't forget that there's Team Green too!
Not as prolific at the moment as Team Blue, but it is there, and I wouldn't be able to type this message to you if it wasn't!

regards, Gizbar.


Ah... AMD. The younger child. Personally, I side with Intel. I no nothing about AMD except for some basic names, Opteron, Athlon, Phenom. I will look into adding them somehow.

Thanks Gizbar.


- Luke.
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Message 957440 - Posted: 19 Dec 2009, 21:09:49 UTC
Last modified: 19 Dec 2009, 21:10:34 UTC

Another update, this time, very minor.

Changes in 0.2.1:
Added "Die Size" for Allendale Core 2 Duo processors
Added sheet "AMD K10" for future updates (request of gizbar)
Added Arrandale Core i7 mobile processors

All tips, suggestions, opinions are welcome.
- Luke.
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Message 957501 - Posted: 20 Dec 2009, 6:46:51 UTC
Last modified: 20 Dec 2009, 6:47:57 UTC

I've had some time to 'release' another update. No new processors however.

Changes in 0.2.2:
Added release date, life cycle stage, release price and current price to all Core 2 Duo Allendale processors
Addition of performance data for Core i5 750 & Core i7 870.
Created column "Performance Test v7 CPU Mark"

If you have any of the processors listed... could you be so kind to suspend S@H and download PassMark Performance Test v7. Then go to Tests > CPU > Run "All" and post back with your average CPU Mark (displayed after the tests and listed as the first item).

Thanks folks. All other suggestions are welcome.

- Luke.
- Luke.
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Message 957537 - Posted: 20 Dec 2009, 14:44:50 UTC

Core i7 860 oc'd to 3360mhz - CPU Mark 6798.5
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Message 957650 - Posted: 20 Dec 2009, 22:18:10 UTC - in response to Message 957537.  
Last modified: 20 Dec 2009, 22:30:53 UTC

Intel i5 750 @ 2.67GHz

CPU Mark: 3,736.0
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Message 957656 - Posted: 20 Dec 2009, 22:31:58 UTC
Last modified: 20 Dec 2009, 23:00:21 UTC

i7 920 @ 3.2 CPUmark 5713 With HT off if that matters.

EDIT: Default settings HT on only CPUmark 4802, I see I need a hard drive desperately mine barely shows in the comparison, my CDRom is pretty weak also.
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