http://wccftech.com/nvidia-dual-chip-geforce-gtx-690-gpu-exposed/
http://videocardz.com/30962/geforce-gtx-690-to-be-released-in-may
If it gets GTX 680 SLI performance, $799 sounds good to me.
http://wccftech.com/nvidia-dual-chip-geforce-gtx-690-gpu-exposed/
http://videocardz.com/30962/geforce-gtx-690-to-be-released-in-may
If it gets GTX 680 SLI performance, $799 sounds good to me.
What I find more interesting is the GeForce GTX 685 (GK110). I'll take three of those.
According to current rumors, the hd7990 will be using two fully operational Tahiti GPU's clocked at 850mhz (vs. 925 for the hd7970). Since Nvidia has the upper hand on power draw this time around, they might be able to keep a pair of GK104's at full speed (1006mhz) in a dual card setup. If that happens, Nvidia will easily win the dual-gpu fight.
What I find more interesting is the GeForce GTX 685 (GK110). I'll take three of those.
According to current rumors, the hd7990 will be using two fully operational Tahiti GPU's clocked at 850mhz (vs. 925 for the hd7970). Since Nvidia has the upper hand on power draw this time around, they might be able to keep a pair of GK104's at full speed (1006mhz) in a dual card setup. If that happens, Nvidia will easily win the dual-gpu fight.
True that - dual card match is a TDP battle,
yet Nvidia managed pretty much a tie - with the freaking Fermi against the Cayman(!)
(Later converted into a perfromance win via Cata crew dropping the ball )
So move along ppl. Nothing to see here. Nvidia wins this one handily.
Slightly less power potential that 680 SLI.
225x2= 450 total TDP for 680 SLI
375 total TDP for this card if the 8+8 is correct.
Currently stock 680's in SLI are rated for 390 watts, so this would be downclocked probably I would guess.
There's no need for that, both camps typically cherry pick the gpus for their high end dual gpu cards. Plus, the total power draw for a single card with 2 gpus will be much lower than the total power draw for 2 separate cards with 1 gpu each. They might even end up close to 300w.
Nope.
You're forgetting some simple facts: AMD has better multi-GPU scaling than NVIDIA. They also lose less performance at ultra high resolutions like 2560x1600 and 5760x1200.
The GTX 690 will win, but only by around 5-10%. Same thing as the HD 7970 vs GTX 680 will happen.
I'm not trying to get into an argument with you, because it's pointless on several levels. But based on hardocp's gtx680 SLI review and cross referencing that article with their original gxt680 review Mass Effect 3, Batman AC, and Deus Ex scaled better with SLI than crossfire. BF3 scaled better with crossfire, and Nvidia's lead in Skyrim is so high that I didn't bother to calculate who scaled better.
So, in other words, you based your information on past products and are entirely wrong in regards to how the dual GK104 card will end up vs. the dual Tahiti card.
I'm telling you since I'm unbiased.
NVIDIA has the crown for the fastest single and dual-GPU cards, but in terms of multi-GPU scaling and performance loss at ultra high resolutions they're worse. Kepler doesn't change this.
Difference in performance between the GTX 690 and HD 7990 will be very similar to the one between GTX 680 and HD 7970. NVIDIA gets an advantage for superior power consumption, and AMD gets an advantage for superior multi-GPU scaling and lower performance losses at ultra high resolutions.
Seems simple enough.
But what about price?
Edit: Oh and one seems to be more SFF friendly
What I find more interesting is the GeForce GTX 685 (GK110). I'll take three of those.
According to current rumors, the hd7990 will be using two fully operational Tahiti GPU's clocked at 850mhz (vs. 925 for the hd7970). Since Nvidia has the upper hand on power draw this time around, they might be able to keep a pair of GK104's at full speed (1006mhz) in a dual card setup. If that happens, Nvidia will easily win the dual-gpu fight.
375, you're forgetting the 75 it draws from the PCIe lane... Unless dual cards no longer pull power from the PCIe lane.. If so disregard.
At present time the specification and its addendums specify normal (75W), 150W, 225W, and 300W PCIe card operation. In the case of 300W cards in particular this is achieved through 75W from the PCIe slot, 75W from a 6pin PCIe power connector, and 150W from an 8pin PCIe power connector.
I was going off what Ryan states here:
http://www.anandtech.com/show/4209/amds-radeon-hd-6990-the-new-single-card-king/5
I'm seeing 2x8 pins, or am I seeing things?