Hi guys,
when speaking about the EVGA GTX 680s what is your opinion about this
variant:
EVGA GeForce GTX680 Classified
1536 CUDA cores
4 GB 256-bit GDDR5
Core clock at 1111 MHz
Boost Clock at 1176 MHz
Effective Memory clock at 6008 MHz
Seems to me as the most powerful from the actual 4 GB EVGA GTX 680 cards
(and maybe from the all 4 GB GTXs 680 at the moment).
Thanks in advance for your comments !
Best wishes,
Marek
Dne Fri, 30 Nov 2012 00:19:58 +0100 Jason Swails <jason.swails.gmail.com>
napsal/-a:
> On Thu, Nov 29, 2012 at 5:03 PM, Jonathan Gough
> <jonathan.d.gough.gmail.com>wrote:
>
>> Hi All,
>>
>> I was wondering in terms of performance/accuracy/precision is there any
>> difference between the different EVGA Nvidia GTX 680 GPU's?
>>
>> I thought I remember Jason saying you didn't want the overclocked
>> version,
>> but I couldn't figure out what the differences were between certain
>> models
>>
>> specifically I am referring to:
>>
>> EVGA 04G-P4-2686-KR GeForce GTX 680 w/ Backplate 4GB 256-bit GDDR5 PCI
>> Express 3.0 x16 HDCP Ready SLI Support Video Card
>>
>
> According to Newegg.com, this card has (at $519):
>
> 1536 CUDA cores
> 4 GB 256-bit GDDR5
> Core clock at 1019 MHz
> Boost Clock at 1084 MHz
> Effective Memory clock at 6008 MHz
>
>
>>
>> EVGA 04G-P4-3687-KR GeForce GTX 680 FTW+ w/Backplate 4GB 256-bit GDDR5
>> PCI
>> Express 3.0 x16 HDCP Ready SLI Support Video Card
>>
>
> Also according to Newegg, this card has (at $549):
> 1536 CUDA cores
> 4 GB 256-bit GDDR5
> Core clock at 1084 MHz
> Boost Clock at 1150 MHz
> Effective Memory clock at 6008 MHz
>
> I think all of our applications (i.e., computational science programs)
> are
> memory-bound. That is, the main determinant of speed these days is how
> quickly the processor can be fed data to crunch. (This is mostly why the
> GPU can run programs so much faster*, as I've been led to understand --
> it
> has much more memory bandwidth than CPUs). Therefore, I expect the 6%
> jump
> in core clock speeds is all but meaningless to pmemd.cuda. You would
> probably not be able to measure a statistically significant difference in
> performance between them.
>
> The far more significant difference is that the second card comes with
> Assassin's Creed 3 and Borderlands...
>
> HTH,
> Jason
>
--
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Received on Thu Nov 29 2012 - 16:30:03 PST
