OTOY Forums

Hi all,

seems like no one has posted info on this yet. It is Nvidia, it is Kepler, and it is new, the GeForce GT 640:

http://www.tomshardware.com/reviews/gef ... ,3214.html

They say there will be versions with 2G of memory.

Okay, I would imagine that this card is Fermi... next model down the line:

http://www.geforce.com/hardware/desktop ... rce-gt-630

And this is what Anandtech has to say about it:

http://www.anandtech.com/show/5845/nvid ... nto-retail

Posted about these a bit earlier =) these are actualy fermi based cards =) not Keplers, they only rebranded older cards with some minor tweeks to sellas new..for lo end rigs =)

What is a bit more interesting is gtx680 SO from gigabyte - high overclock, heafty heatsink, that promises to stay ~60c fully loaded - that's nice as it would probably give bi longer lifespan for card. Sadly it's 2gb only..and not release yet + high priced..

Sorry but the 640 seems to be a genuine Kepler card. It has a larger number of CUDA cores which are somewhat less efficient compared to older cards. 384 CUDA cores for the 640, 96 CUDA cores for the 630. Here is the Nvidia page for the 640 where they also mention Kepler:

http://www.geforce.com/hardware/desktop ... orce-gt640

Yep looks like a Keplar to me.It's a cut down GK107 chip.

So what the hell happened to the promised GTX660 ? I was expecting that one to be launched next.

Glimpse:

I think you must have been thinking about the Mobile 6xx chips which were indeed rebranded 5xx/4xx chips

No, Jeberwotsky, there are actually products that start 6xx, but are based on older, Fermi, architecture:

http://www.tomshardware.com/news/nvidia ... 15213.html - these are older news =).. But now

"The company has quietly launched the GeForce GT 610, GT 620, and GT 630 into the retail market. Unfortunately these are not the Kepler GeForce cards you were probably looking for.As NVIDIA was already reusing Fermi GPUs for GeForce 600 series parts for the OEM laptop and desktop market, it was only a matter of time until this came over to the retail market, and that’s exactly what has happened. The GT 610, GT 620, and GT 630 are all based on Fermi GPUs, and in fact 2 of them are straight-up rebadges of existing GeForce 400 and 500 series cards." source
http://www.anandtech.com/show/5845/nvid ... nto-retail

Cool, isn't it? you just put new sticker and ask bigger price =p

There is an easy way to spot Fermi GPU's: from the GT 630 specifications:

Graphics Clock (MHz) 810
Processor Clock (MHz) 1620

That is a Fermi GPU. Kepler GPU's don't have two clock speeds like this.

--
Roeland

Yes, and GT 640 is Fermi and Kepler, DDR3 and DDR5 VRam (No cards with 2 GB DDR 5 atm.).
Depends of the OEM.
http://www.geforce.com/hardware/desktop ... ifications

If these Kepler cores, the card should be as fast as a GTX 550Ti, or a bit faster, with Octane.
There are to be priced at GTX 550Ti level also.
See also here:
http://www.fudzilla.com/home/item/27443 ... the-gt-640

Cheers, mib.

Nvidia has very confusing naming conventions. It is getting very difficult to make sense out of.