Big Kepler Memory?

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lambchops511

Senior member
Apr 12, 2005
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What's the latest rumors on Big Kepler and its memory subsystem?

After some light benchmarking on my custom CUDA application, I am finding the GTX 580 outperforming the GTX680. My application is also memory bound, I don't really want to buy the GTX 5XX since its over 2 years old, on the other hand if Big Kepler is similar to Kepler, I won't wait for it and just get a couple of GTX580s.

Googling has suggested 512-bit memory interfaces... Do you think this is possible?
 
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lambchops511

Senior member
Apr 12, 2005
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P.S. I also have access to GTX480 chips, and the 480 chips are barely slower than the 580 chips suggesting the performance bottleneck is most definitely in the memory subsystem.

384-bits with the same memory clocks is a good 50% more bandwidth and very juicy to me. Any ETA on consumer Big K chips coming out?
 
toyota

toyota

Lifer
Apr 15, 2001
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lambchops511 said:
P.S. I also have access to GTX480 chips, and the 480 chips are barely slower than the 580 chips suggesting the performance bottleneck is most definitely in the memory subsystem.

384-bits with the same memory clocks is a good 50% more bandwidth and very juicy to me. Any ETA on consumer Big K chips coming out?
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what? gtx580 has just 8% more bandwidth so its certainly not bandwidth constrained as its about 20% faster than the gtx480. that clearly shows the extra 32sp, 4 tmus and bump in clockspeed were responsible for most of the gain over the gtx480. heck the gtx570 has less bandwidth than the gtx480 but matches or beats it overall.
 
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biostud

biostud

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Feb 27, 2003
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and the latest rumor says that big kepler is never going to be made for consumer cards.
 
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iMacmatician

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Oct 4, 2012
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youtube.com
Pottuvoi said:
6GB version is pretty much confirmed for Quadro. (Fermi generation has a 6GB version out.)
I would bet we might see something bigger as well. (12GB?)
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Speculations for the Tesla have been 6/12/24 GB, the last one dependent on memory chip size.

I wouldn't be surprised if the GeForce version(s) (if GK110 will end up in a GeForce) had 3/6 GB though.

biostud said:
and the latest rumor says that big kepler is never going to be made for consumer cards.
Click to expand...
Well, if you're talking about the OBR rumor, it technically doesn't actually say that, it says the 670/680's successor(s) won't use GK110. It doesn't rule out the possibility of, say, the 690's successor using GK110 or the 670/680's successor's successor using GK110.
 
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lambchops511

Senior member
Apr 12, 2005
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Where's the best place to pickup 480 GTX? newegg still at this point? Feels so bad to buy such old technology, but I can't wait till next year.
 
Jaydip

Jaydip

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Mar 29, 2010
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Yeah it is, it will be replacing Quadro 5000.The Quadro 6000 replacement is yet to be announced.
 
DominionSeraph

DominionSeraph

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Jul 22, 2009
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lambchops511 said:
Where's the best place to pickup 480 GTX? newegg still at this point? Feels so bad to buy such old technology, but I can't wait till next year.
Click to expand...

New, yes. PCpartpicker says Newegg is the cheapest with a $200 GTX 480. (Which is the equal of the cheapest I've ever seen it)

http://www.newegg.com/Product/Produc...82E16814130759

FS/FT has the GTX 480 in the $150 range when they're there.
Catalan's thread which I linked you in your previous thread is still up:
http://forums.anandtech.com/showthread.php?t=2273658&highlight=gtx+480
$270 for a pair of GTX 480's


GTX 580, Newegg has a $350 refurb.
http://www.newegg.com/Product/Produc...82E16814130704

Here's a member selling a 580 for $275
http://forums.anandtech.com/showthread.php?t=2271590&highlight=gtx+580
 
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