Cuda vs Ram

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Cuda vs Ram

Postposted on Sun Jun 23, 2013 2:34 am

Maybe splitting hairs with this question but I got a GTX 650 Ti 1GB for my new budget build.

After it arrived I found this-- GTX 650 for roughly the same price.

The 650ti has 1gig ram at 5400MHz with 768 cuda cores
The 650 has 2 gigs ram at 5000MHZ wth 384 cuda cores.

Which is better more cores or more ram? or are they effectively the same?

Thanks.
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Re: Cuda vs Ram

Postposted on Sun Jun 23, 2013 2:45 am

IMO, both cards are too slow to fully utilize 2GB of RAM, especially on a 128 bit bus. I would just go with the 650Ti with 1GB if I were you, unless you have a specific task in mind which requires tons of VRAM :).

Ninja Edit: This article explains the difference pretty clearly: The GTX650 is an overclocked GT640, the 650Ti is a cut-down GTX660.
Last edited by rado992 on Wed Jun 26, 2013 12:04 pm, edited 1 time in total.
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Re: Cuda vs Ram

Postposted on Sun Jun 23, 2013 3:27 am

Thanks for the link and for the explantion. My google skills failed me and I missed that article. I feel better that I got the 650ti.

This build is for school so I believe don't need the extra Vram at this point if the bottleneck is the processor and the bit bus.

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Re: Cuda vs Ram

Postposted on Tue Jun 25, 2013 5:42 pm

rado992 wrote:Ninja Edit: This article explains the difference pretty clearly: The GTX650 is an overclocked GT640, the 650Ti is a cut-down GTX660.


Not sure I'd say the 650's an overclocked 640, per se - the main differentiating factor comes from the 650's use of GDDR5, versus the 640's DDR3. There's a chasm of difference in the resulting bandwidth, and the 650's much better-equipped to handle demanding rendering scenarios as a result.

As for the rest? Yeah, there's probably not much reason to spring for 2 gigs of VRAM on the 650 unless you plan to work with some very large data sets...
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Re: Cuda vs Ram

Postposted on Wed Jun 26, 2013 11:35 am

I'm on my cell so I can't give you any examples but there is very little (no) chance that any 650 could outperform a 650Ti. When you're that low on the totem pole (ie, 7790 / 650Ti Boost or lower) don't get hooked into marketing schemes offering more vram on a GPU that could never take at vantage of it. You made the right decision.
Last edited by DPete27 on Thu Jun 27, 2013 6:49 pm, edited 1 time in total.
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Re: Cuda vs Ram

Postposted on Wed Jun 26, 2013 7:30 pm

650Ti wins handily. 1GB has been a standard amount for about five years because it's all you realistically need for running a single <=1080p display unless you have very specific needs from a texture-heavy mod.
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Re: Cuda vs Ram

Postposted on Thu Jun 27, 2013 9:35 pm

Thanks for clearing everything up for me guys.
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