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Big Kepler Memory?

L

lambchops511

Senior member
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?
 
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?
 
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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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.
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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.
 
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.
 
Yeah it is, it will be replacing Quadro 5000.The Quadro 6000 replacement is yet to be announced.
 
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.
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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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