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32 thread 2P, Let's do some "cheap" -bigadv

post #1 of 3
Thread Starter 
I miss bigadv! It's time for me to upgrade from my 2600K and get some real work done biggrin.gif

This is my first time putting together a 2P and I honestly have no idea what I'm looking for. Here is the parts list but I don't even know if I meet all the compatibility requirements. I've heard SSI EEB 3.61 fits in EATX minus a couple screws so I'd rather have a tower than a server blade since I don't have a rack. The ETA on this is still a couple months for budget reasons but I want to pick up parts as they hit good prices (there's an Opteron 6276 for $250!).

I need feedback so please help me out! tongue.gif

AMD Opteron 6272 (x2)
ASUS KGPE-D16
PNY GTX 760 (x2)
16GB ECC 1600MHz
Rosewill TACHYON 750w
NZXT H630
Crucial M500 120GB
Dynatron A14 3U cooler (x2)

http://goo.gl/PM082B
http://goo.gl/2UIqNQ
http://goo.gl/acvVLb
http://goo.gl/9ij5gX
http://goo.gl/4NkdbR
http://goo.gl/zftq8a
http://goo.gl/bgLywc
http://goo.gl/F9IoZe

I don't like buying international so I had to turn down some cheaper CPU's. Also do Opteron 6238 give more ppd? It's less cores but higher clocks. IIRC minimum for -bigadv is 24 threads in May.
Edited by crashnburn_819 - 4/3/14 at 3:56pm
Hexacore Folding
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-4930k Asus Rampage IV Gene Asus Strix GTX 980 Samsung Low-Profile 16GB DDR3 
Hard DriveCoolingOSMonitor
Samsung 840 Pro Scythe Mugen 4 Windows 7 Asus 23" ML239H 
KeyboardPowerCaseMouse
CoolerMaster QuickFire Rapid (Blues) SeaSonic 520w Platinum Fractal Design Arc Mini R2 Logitech MX518 
Mouse Pad
Siberia mat 
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Hexacore Folding
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-4930k Asus Rampage IV Gene Asus Strix GTX 980 Samsung Low-Profile 16GB DDR3 
Hard DriveCoolingOSMonitor
Samsung 840 Pro Scythe Mugen 4 Windows 7 Asus 23" ML239H 
KeyboardPowerCaseMouse
CoolerMaster QuickFire Rapid (Blues) SeaSonic 520w Platinum Fractal Design Arc Mini R2 Logitech MX518 
Mouse Pad
Siberia mat 
  hide details  
Reply
post #2 of 3
I have to wonder whether going BA is worth it at this point, given that it's ending altogether at the end of January 2015 and regular SMP will probably not be re-scaled to provide a higher PPD.

The scant information here says a pair of 6274s OC'ed all the way to 3.7 GHz nets about 325k PPD on project 8102, and I'd expect similar PPD on 8103, 4, and 5. If you ran the 6272's stock, I'd guess you'd be looking at around 250k PPD on non-8101, maybe less. If you were expecting to fold on both 760s, then each of them would need a free core to avoid being bottlenecked. At that point, I'm thinking 220k is probably the upper limit. The 760s would each get around 70k, for an overall total of 360k or so.

With core 17, high-end GPUs can almost match an AMD 2P, or possibly exceed it if I overestimated above. The $500 780 with a decent overclock (in the neighborhood of 1200 MHz core) does around 170k PPD on most core 17 projects, and I've seen certain runs of 9401 go over 200k (that's probably an outlier for the foreseeable future). The $650 780 Ti does around 200-220k PPD on most core 17 projects with a similar OC.

It seems like for the $1400 you'd be spending on the two CPUs, 2P mobo, and dual 760s, that you could get a more future-proof system of dual 780s and a 4570k+good mobo, or something like that. You'd get a similar PPD and not see a big drop once February 1 rolls around, plus it'd be easier to sell off the parts when the next upgrade occurs. Or consider keeping the 2600k and use the money not spent on a new CPU and mobo to upgrade the cards to dual 780 Ti's, in which case you'd be doing better PPD for less money.
post #3 of 3
I am going to have to agree with the above post. BA is dead in 8 months, while GPUs will carry on with more core optimizations and as a result, more PPD/watt. When BA goes away, you're going to either end up selling that 2P at a massive loss, or trying to make use of it as a legitimate server (which will end up costing more money than it's worth for most people).
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