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Cheapest Folding rig to maintain electricity wise - Page 3

post #21 of 26
Regarding CPUs, watt for watt, nothing will currently fold faster than an HT-enabled SB chip.

Also, overclocking is terrible for performance per watt. A 50% OC on will increase performance almost 50%, but will often more than double CPU power consumption, even on good clocking architectures. Don't worry about memory much, and don't bother with high performance memory. Too much initial cost, too much power consumption, and not enough benefit. Cheap low power DIMMs are a good bet. The denser the memory, the less power it will use for a given amount as well.

Regarding GPGPU work like folding or hashing, you want to decide on architecture first (NVIDIA generally folds better, AMD hashes better), then you look for the most shader units you can get on the fewest PCBs possible, for the least money possible.

The 7100GS is garbage. Architecture is old so it will be limited to older GPU folding cores. Even newer very low-end cards in general are usually. Remember you have to power the whole board, and low end cards, while they may have low power consumption, will usually have worse performance per watt than a higher end card of the same generation, up to a point. Underclocking can also dramatically increase the performance per watt of a higher end GPU.
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post #22 of 26
Thread Starter 
Excuse me Blameless, but what is an HT-enabled SB chip ? I checked google and it didn't yield a lot of results.


Okay no overclocking then ! I prefer slow, sustainable folding than fast, whyisthemoneygone folding.

Getting a single 2go RAM bar is better consumption-wise than 4 500mo RAM bars, makes sense. Hmm.

GPU, I have not a single idea what is a Hash and what is its use in BOINC. I didn't know the existence of Shaders before now. But on the fewest Printed Circuit Board possible ? You mean, motherboard ? I'm a bit lost. Sorry about that, I try to google as much as I can.


Man, the 7100GS is garbage ? Well of course it had to be. Oh well.

Underclocking, I see ! But I'd need a high-end GPU, as you said.



And I don't feel like getting the best of the best of the best for this. I enjoy playing video games, and I've got a GeForce 9800 GT, an Intel Core2 Duo 3Ghz, on an ASUS P5KPL-CM, and CORSAIR supply unit and RAM.


If I bought something like an Intel Corei5 with high-end graphic cards for the folding unit, I'd be pretty damn frustrated that I am not using it for my games and whatnot ahahah


However, Carlos, you told me about that G.Skill Sniper Series graphic cards, I see you made a review of it, I'll read it right now. I wouldn't mind paying 100 bucks to get two of those if they're really nice !
Edited by Sanda - 12/20/11 at 10:03am
post #23 of 26
HT = hyperthreading. Hyperthreading usually adds more performance than it costs in extra power.

I'd recommend something like the Xeon E3-1230, as it's cheaper than the i7 2600 (should only be slightly more expensive than a 2500), but will fold a bit better than the i5 2500, and use less power.

The E3-1260L is slower, but is a 45w TDP chip, and might be worth it in the long run. That said, you can probably undervolt the 1230 and achieve a similar effect for less initial cost.

You don't need a super high-end GPU, just a modern one balanced to the task at hand. The GTX 560 is a pretty good folding card, both in terms of price, and performance per watt, especially if you underclock/undervolt it a bit.
Edited by Blameless - 12/20/11 at 10:19am
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post #24 of 26
Thread Starter 
Whoa I see !

Well then you say I should get the Xeon E3-1230 and hyper thread it then ? Alright.

Why should an E3-1260L be worth it in the long run ? Could you tell me why being a 45w TDP chip is a good thing ? Is it because it uses less power ?


But I shouldn't underclock an hyper threaded chip now, should I ? Also you talked about SB chip, what is an SB chip ? Is there TDP and SB chips then ? What's the difference ? Gotta check wikipedia


The GTX 560 is around 200 dollar ! And the G.Skill Sniper Series 8 is 50 dollar ! Can someone make a comparison between the two ?

Blameless, do you think that in term of price and performance per watt, the G.Skill Sniper Series 8 is not up for the task, compared to more modern graphic cards ?

I mean, the GTX 560 is 200 dollar, ahahah

Is the price justified, compared to the G.skill ?
post #25 of 26
Thread Starter 
Ah, by the way, take a look at this

http://www.google.fr/#q=GTX+560&hl=fr&sa=N&tbs=p_ord:p&tbm=shop&ei=VRnxTvGNGdCLhQeO8tCnAQ&ved=0CAoQuw0oAQ&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=2ad27f5c7050a48b&biw=1920&bih=890


What's up with that ? Why is there SO MANY DIFFERENT GRAPHIC CARDS, even though they are named the same ? What gives ?
post #26 of 26
Quote:
Originally Posted by Sanda View Post

Whoa I see !
Well then you say I should get the Xeon E3-1230 and hyper thread it then ? Alright.

Hyperthreading is a feature of some Intel CPUs and will be enabled on these chips unless you specifically disable it.
Quote:
Originally Posted by Sanda View Post

Why should an E3-1260L be worth it in the long run ? Could you tell me why being a 45w TDP chip is a good thing ? Is it because it uses less power ?

TDP is thermal design power, and can be used as a very rough guestimate of how much electricity a particular chip will consume at full load.

The E3-1260L will be about 15-20% slower, but uses about 40% less power than the E3-1230.
Quote:
Originally Posted by Sanda View Post

But I shouldn't underclock an hyper threaded chip now, should I ?

Hyperthreading has nothing to do with and does not interfere with underclocking.
Quote:
Originally Posted by Sanda View Post

Also you talked about SB chip, what is an SB chip ? Is there TDP and SB chips then ? What's the difference ? Gotta check wikipedia

Totaly different things.

TDP is, again, thermal design power. Simply put this is the minimum amount of heat a thermal solution (cooler or heatsink) must be able to move in order to be certified to be used with a particular chip. Since the heat a chip puts out is directly related to the power it consumes, this is also a useful figure for estimating power consumption.

SB is short for Sandy Bridge. Sandy Bridge is the code name of the current Intel CPU architecture used on the LGA-1155 plat form. All LGA-1155 CPUs are currently Sandy Bridge.
Quote:
Originally Posted by Sanda View Post

The GTX 560 is around 200 dollar ! And the G.Skill Sniper Series 8 is 50 dollar ! Can someone make a comparison between the two ?
Blameless, do you think that in term of price and performance per watt, the G.Skill Sniper Series 8 is not up for the task, compared to more modern graphic cards ?
I mean, the GTX 560 is 200 dollar, ahahah
Is the price justified, compared to the G.skill ?

There is nothing to compare. The 560 is a video card and the Sniper 8 is system memory. You need system memory to use a PC, and to fold with the CPU. You do not need a video card at all (sandy bridge CPUs have integrated video), but the GTX 560 can fold well for the money, and can do this at the same time the CPU is folding.
Quote:
Originally Posted by Sanda View Post

What's up with that ? Why is there SO MANY DIFFERENT GRAPHIC CARDS, even though they are named the same ? What gives ?

Same reason there are so many different kinds of toilet paper.

AMD and NVIDIA only sell a small portion of Radeon or GeForce cards directly. Most of the chips they have made are sold to partners who produce their own cards with them. These are distinguished in a wide variety of ways, from factory overclocks, to different coolers, to physical appearance, to warranties.
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