GTX 690 exposed - slated for May launch

[Keysplayr]

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.

Two independent cards use a boatload more juice than an optimized card with two GPU's on it.

Compare 2 GTX275's vs a GTX295. Or 2 GTX580's vs GTX590. Clocks were lower for sure, but we haven't had such an efficient GPU as the 680 in a long while. At least on Nvidia's side. I think they might get to keep the full speed cores on this would be 690.

 

[Jionix]

Two independent cards use a boatload more juice than an optimized card with two GPU's on it.

Compare 2 GTX275's vs a GTX295. Or 2 GTX580's vs GTX590. Clocks were lower for sure, but we haven't had such an efficient GPU as the 680 in a long while. At least on Nvidia's side. I think they might get to keep the full speed cores on this would be 690.

But in the case of the 590, I think Nvidia cut it down too much --- especially in the board component area (aka, the "Pop"....). They might have saved a lot of power from still hungry chips, but they did so at the expense of everything.

You can either over engineer the card, like AMD had done with the 5970 (and to some extent, the 6990), where you can pretty much have two full fledged chips, or you can have reduced chips.

 

[BallaTheFeared]

They look like two 8 plins connectors to me as well, which means 375W. I am just saying the PCI-E spec only allows for 300W total. Or at least this is what I see everywhere I look, including the PCISIG website.

I am not saying the 2x8 power wont supply 375W, only that it surpases the PCISIG High Power Card Electromechanical Specification.

oic :thumbsup:


Hopefully they allow overclocking past it (to at least 375) with the new boost solution.

 

[bleucharm28]

This will be interesting. I wonder how many people is going to sell their gtx 680's for this bad boy?

 

[Grooveriding]

They look like two 8 plins connectors to me as well, which means 375W. I am just saying the PCI-E spec only allows for 300W total. Or at least this is what I see everywhere I look, including the PCISIG website.

I am not saying the 2x8 power wont supply 375W, only that it surpases the PCISIG High Power Card Electromechanical Specification.

Technically an 8pin and 6pin both can deliver the same power. The difference is that an 8pin connector has two additional ground wires to account for higher power draw and prevent burning out the connector.

My PSU for example runs an 8pin+6pin off a single connection to the PSU because the PSU is able to push enough power through a single connection to account for two PCIE plugs.

This card could easily end up with an 8+6pin and be functional. Even if it did break spec, there is plenty of precedence for it; EVGA classified cards with 8+8+6 connections and the like. The 6990 can easily be run at stock 6970CF speeds and beyond and blows right over the PCIE power spec limits. This card is going to draw less power than a 6990 for sure.

Really curious to see how they position and spec this card. There is no doubt they can put the full punch of two 680s on a single card and with the small performance advantage the 680 has over the 7970, it's going to come down to what AMD does on the 7990. AMD consistently for 5970/6990 put fully unlocked cores on their dual-gpu with a downclock.

Anyone considering 680SLI should wait for this card as you'll probably get the same performance at a savings. I'd still wait for initial reviews to be sure it has a solid PCB and doesn't run into the issues the 590 had with not being able to handle additional power draw and burning up.

 

[-Slacker-]

Wait, so the gtx 680 really is the top end single gpu of the 600 series?

 

[bunnyfubbles]

Wait, so the gtx 680 really is the top end single gpu of the 600 series?

as far as we know GK110 is still going to take that crown, and with what nVidia learned from the 590 and also considering the GK114 has bested AMD's flagship part, it really does make a lot of sense (in terms of keeping power and thermals) to have their dual GPU card be based off of two GK114s rather than two GK110s.

it also makes perfect sense when considering GK110 is definitely nowhere near being released according to the latest info

 

[boxleitnerb]

GK110 (IF it appears on the desktop market) will be the 700 series. As the 680 has the x80 moniker, it will be the fastest SGPU part on the 600 series, yes.

 

[Keysplayr]

But in the case of the 590, I think Nvidia cut it down too much --- especially in the board component area (aka, the "Pop"....). They might have saved a lot of power from still hungry chips, but they did so at the expense of everything.

You can either over engineer the card, like AMD had done with the 5970 (and to some extent, the 6990), where you can pretty much have two full fledged chips, or you can have reduced chips.

No doubt about it, the GTX590 used lots of juice.
Here are some numbers going back to GTX275/295

GTX275 Core: 632MHz Mem: 1134MHz TDP: 219W
GTX295 Core: 576MHz Mem: 999MHz TDP: 289W -56MHz core & -135MHz Mem.

GTX580 Core: 772MHz Mem: 1002MHz TDP: 244W
GTX590 Core: 607MHz Mem: 853MHz TDP: 365W -165MHz core & -149MHz Mem.

GTX680 Core: 1006MHz Mem: 1500MHz TDP: 195W
"GTX690" has a 105W window to play with before it reaches the 300W "theoretical" maximum allowed.

For comparison GTX290 had a 81W window and used 70W of it.
For comparison GTX590 had a 66W window and used 131W (65W over).

680 is a much leaner GPU. I'd be very surprised if they dialed down the core speed at all.

 

[Rubycon]

I'll keep my 590s this time around. I was looking forward to a much more powerful (compute) solution with tripling the CUDA cores but this release severely disappoints. :'(

 

[bunnyfubbles]

GK110 (IF it appears on the desktop market) will be the 700 series. As the 680 has the x80 moniker, it will be the fastest SGPU part on the 600 series, yes.

I wouldn't be so sure of that as it would still be slower than a 690 which would still be very much a viable product by the time GK110 is ready.

granted that wouldn't leave much wiggle room for cut down versions of GK110. Although if yields are good enough by then they might not need to.

 

[at80eighty]

Waiting for the 690 vs 7990. I'm happy with the current card, but am leaning towards Nv this round as if I get a cooler running card, why not. will need to see how scaling & driver opt. rolls out too

 

[BFG10K]

Regarding the PCIe spec, the problem was that some video cards had very “generous” TDPs so they could exceed 300W on 6+8. That’s a no-no.

8+8 can handle 375W, so that’s okay.