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Jim1348
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Re: Which GPU is best "bang for buck" for crunching?

For both bang per buck and power efficiency, the HD 7790 can't be beat. I have used it on both Folding@home and various BOINC projects, including Einstein and SETI. I also had two MSI HD 7770s, which are very nice (until they both died; I will get Asus next time), and two HD 7870s, which are also very nice. That is, for OpenCL the HD 7000 series (any of them really) can't be beat. You just choose your power and price point.
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[Edit 1 times, last edit by Jim1348 at Sep 13, 2013 10:54:53 PM]
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BladeD
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Re: Which GPU is best "bang for buck" for crunching?

Under $200...I've seen 7950s on sale for that price. Go for it!
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Re: Which GPU is best "bang for buck" for crunching?

Jim1348,

Thanks a lot for your advice! I think I will go with a 7790.

I was looking at getting a 7970, but I had not considered/checked out the power usage of these GPUs.

The 7790 ($130) uses 85 watts and has 896 steam processors, while the 7970 ($290) uses 250 watts and has 2048 processors.

You get what you pay for with the 7970, but the power usage is so dang high at 250 watts!

I think I'll go with 7790, and now I have number dyslexia LOL :-)

Is there any difference between 1 and 2gb on the cards for the grid and folding?
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[Edit 2 times, last edit by Former Member at Sep 14, 2013 4:52:03 AM]
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Jim1348
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Re: Which GPU is best "bang for buck" for crunching?

I think I'll go with 7790, and now I have number dyslexia LOL :-)

Is there any difference between 1 and 2gb on the cards for the grid and folding?

I have just ordered my second 7790 (a PowerColor AX7790 1GBD5-DH/OC, which has an interesting cooler that I admire for its novelty), and will use both of them for Folding. I just get the 1 GB cards, which have always been sufficient for any project I have worked on or even heard about. The only exception was for Nvidia cards running CUDA on GPUGrid, but that was a goof on their part which they quickly corrected after everyone complained about it. Insofar as I know, you are safe with 1 GB for the foreseeable future.
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Former Member
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Re: Which GPU is best "bang for buck" for crunching?

Thanks Jim. I read somewhere that the 1gb cards generally have faster GDRR5 memory, while the 2gb cards have a bit slower GDRR3 memory. So unless one needed more memory for gaming, there is no advantage to 2gb for folding, and what you said seems to back that up.
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cowtipperbs
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Re: Which GPU is best "bang for buck" for crunching?

not to take this thread to much off topic... I just found a deal on a 8350 and now looing for a good mid range mobo and memory. Mamajuamauk what would you recommend?
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yojimbo197
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Re: Which GPU is best "bang for buck" for crunching?

I had a HD6670 and HD7770 on the HCC GPU project. The HD7770 gave me a big boost in points and was relatively cheap $120 for 2Gb ASUS card with two cooling fans. The price on used HD7770's is down to th 60-90$ range. And you can find new HD7770's in the $75-90 depending on the sale and rebate.

However, based on previous crunchers reports and looking at prices, the HD7950 is probably your best bang for the buck. If you are patient, you can find sales where a HD7950 is around $200-220 before rebate. There was a $170 AR XFX HD7950 deal about 3 days ago on Tiger Direct.

However, there's also another point(s) to be raised, in that Linux GPU WU's in my machines on my cards averaged about 35-40% less time/were faster than on the Windows 7 machine. Similarly, certain projects, especially those that use VINA, run faster (30-40%)on Linux vs. Windows.
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Mamajuanauk
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Re: Which GPU is best "bang for buck" for crunching?

not to take this thread to much off topic... I just found a deal on a 8350 and now looing for a good mid range mobo and memory. Mamajuamauk what would you recommend?
Depending on budget - I would go for the - Gigabyte - GA-990XA-UD3 - this will take the AMD - FX8350/x8 very well and returns
15/09/2013 22:19:13 |  | [task] Suspending computation - CPU benchmarks in progress
15/09/2013 22:19:43 | | Benchmark results:
15/09/2013 22:19:43 | | Number of CPUs: 8
15/09/2013 22:19:43 | | 3023 floating point MIPS (Whetstone) per CPU
15/09/2013 22:19:43 | | 10445 integer MIPS (Dhrystone) per CPU
15/09/2013 22:19:44 | | [task] Resuming computation
And that's before overclocking! It has 3x GPU slots and 4 RAM slots. I run mine with 16Gb of RAM but will run very well with 8Gb.

For a lower budget you could try - ASUS - M5A78L-M LX V2

HOwever, if you want to get the best out of the CPU I would go for - Asus Crosshair V Formula-Z AM3+ AMD 990FX DDR3 ATX! Stunning MB! but the price reflects that!

In all MB's I have between 8 & 32 GB of Corsair Vengeance Red (with heat sync) 1866 (1500) As far as RAM goes I'm a little old school, I keep matched pairs, in dual slots and either 8, 16 or 32Gb.

These MB's all work well as my stats show...

The choice is yours, if you don't have a budget limit go for the Crosshair, if on a budget the ASUS is good, the Gigabyte sits nicely in between.

BTW - the Crosshair reports
15/09/2013 22:34:50 |  | Running CPU benchmarks
15/09/2013 22:35:21 | | Benchmark results:
15/09/2013 22:35:21 | | Number of CPUs: 8
15/09/2013 22:35:21 | | 3233 floating point MIPS (Whetstone) per CPU
15/09/2013 22:35:21 | | 12298 integer MIPS (Dhrystone) per CPU
O/C to 4.4 Ghz! I have both of mine fitted with Corsair H100 watercoolers (along with all my 8350's). This MB needs a serious PSU though!

Let me know which you want more info on...
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Mamajuanauk is the Name! Crunching is the Game!



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cowtipperbs
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Re: Which GPU is best "bang for buck" for crunching?

THANKS Mamajuamauk, I was also looking at the Gigabyte so I put in an order for the AMD 8350 and the Gigabyte MOBO.

Also old school on memory so I think I going with the G.SKILL Ripjaws X Series 16GB (2 x 8GB) DDR3 1866 (PC3 14900).

For cooling thinking about something with a push/pull setup, not sure what kind as of yet.

I have a nice little 650 watt PSU wanting to come out and play, and I think it will play nicely with the above.

Noticed your on the other side of pond, here are some cost to compare.

CPU $180
MOBO $114
Mem $119


Thanks again...
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Re: Which GPU is best "bang for buck" for crunching?

That's interesting, I am also thinking about putting together a computer just to run WCG and thinking of using a AMD 8320. I am trying to come up with the best bang for buck dedicated computer.

I already have a desktop with i7-3770 and 16gb ram, but I think what I will do is add a graphics card to it and mainly use it for the Stanford folding program which can use GPUs all the time.

Then I'd use this new computer plus my laptop (and smartphone) for WCG.

Here's the parts list I came up with, I would use Ubuntu to save $100 on the operating system. How does this look? Any better options? Thanks.

PCPartPicker part list: http://pcpartpicker.com/p/1ElO5
Price breakdown by merchant: http://pcpartpicker.com/p/1ElO5/by_merchant/
Benchmarks: http://pcpartpicker.com/p/1ElO5/benchmarks/

CPU: AMD FX-8320 3.5GHz 8-Core Processor ($153.61 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Microcenter)
Motherboard: Asus M5A78L-M LX PLUS Micro ATX AM3+ Motherboard ($44.98 @ Outlet PC)
Memory: G.Skill Sniper Series 8GB (2 x 4GB) DDR3-1866 Memory ($61.20 @ Newegg)
Storage: A-Data Premier Pro SP600 32GB 2.5" Solid State Disk ($39.99 @ Amazon)
Case: Rosewill FBM-01 MicroATX Mini Tower Case ($24.99 @ Newegg)
Power Supply: Rosewill Stallion 400W ATX12V Power Supply ($19.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.98 @ Outlet PC)
Total: $391.73
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-09-16 03:39 EDT-0400)
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