NVIDIA GeForce GTX 780 Review: The New High End
by Ryan Smith on May 23, 2013 9:00 AM ESTMeet The GeForce GTX 780
As we previously mentioned, the GTX 780 is very much a Titan Mini in a number of ways. This goes for not only the architecture, features, and performance, but as it turns out it will be the case for the design too. For the reference GTX 780 NVIDIA will be straight-up reusing the GTX Titan’s board design, from the PCB to the cooler, and everything in between.
As a result the reference GTX 780 inherits all of the great things about the GTX Titan’s design. We won’t go into significant detail here – please read our GTX Titan review for a full breakdown and analysis of Titan’s design – but in summary this means we’re looking at a very well built blower design almost entirely constructed out of metal. GTX 780 is a 10.5” long card composed of a cast aluminum housing, a nickel-tipped heatsink, an aluminum baseplate, and a vapor chamber providing heat transfer between the GPU and the heatsink. The end result is that the reference GTX 780 like Titan before it is an extremely quiet card despite the fact that it’s a 250W blower design, while it also maintains the solid feel and eye-catching design of GTX Titan.
Drilling down, the PCB is also a re-use from Titan. It’s the same GK110 GPU mounted on the same PCB with the same 6+2 phase power design. This is part of the reason that GTX 780 has the same TDP as GTX Titan, while at the same time giving GTX 780 as much or more TDP headroom than Titan itself. Using the same PCB also means that GTX 780 has the same 6pin + 8pin power requirement and the same display I/O configuration of 2x DL-DVI, 1x HDMI, 1x DisplayPort 1.2.
Also being carried over from Titan is GPU Boost 2.0, which was first introduced there and has since been added to additional products (many GeForce 700M products already have it). GPU Boost is essentially a further min-maxed turbo scheme that more closely takes into account temperatures and GPU leakage characteristics to determine what boost bins can be used while staying below TDP. It’s more temperature dependent than the original GPU Boost and as a result more variable, but in cooler situations it allows tapping into that thermal headroom to hit higher clockspeeds and greater performance, TDP allowing. At the same time this means GTX 780 also gains GPU Boost 2.0’s temperature target functionality, which allows users to cap boost by temperature as well as TDP. As with Titan this limit is 80C by default, with the idea being that adjusting the limit is a proxy for adjusting the performance of the card and the amount of noise it generates.
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varad - Thursday, May 23, 2013 - link
You do realize that a GPU like Titan has almost 5 times the number of transistors compared to Intel's biggest Core i7 CPU, right? There are 7.1 billion transistors in Titan vs 1.4 billion in Core i7 3770k. So, it means they cannot match the price of "a good CPU" unless they decide to become a non-profit organization :)AssBall - Thursday, May 23, 2013 - link
Well if all you needed was a single titan to run your is, computations, games, and nothing else, then no problem.krutou - Sunday, May 26, 2013 - link
Two problems with your logic22 nm fabrication is more expensive (price per transistor)
CPUs are more difficult to design
An00bis - Friday, May 31, 2013 - link
it's not like you can just shove your hand in a jar full of transistors and just slap it on a chip and consider it a cpu, a cpu is required to do a gpu's task (integrated gpu) AND be good at everything a gpu can't do, which is... well lots of things actually. A gpu is much simpler, hence why the manufacturing + designing cost is probably more expensive than a big ass card that has to include memory+a pcb+a gpuchizow - Thursday, May 23, 2013 - link
Great card, but a year late. This is what GTX 600 series should've been but we all know how that went.I think Nvidia made some pretty big mistakes with how they handled the entire Kepler generation after Tahiti's launch price debacle. I know their financial statements and stockholders don't agree but they've managed to piss off their core consumers at every performance segment.
Titan owners have to feel absolutely gutted at this point having paid $1000 for a part that is only ~10-15% faster than the GTX 780. End result of this generation is we are effectively paying 50-100% more for the same class of card than previous generations. While the 780 is a great card and a relatively good value compared to Titan, we're still paying $650 for what is effectively Kepler's version of the GTX 470.
Crisium - Thursday, May 23, 2013 - link
People who bought a Titan knew what they were getting into. If you have regrets, you were in no position to buy a $1000 GPU to begin with and made a grievous financial error.$650 isn't horrible for this price, but you are still paying the Nvidia Tax.
chizow - Thursday, May 23, 2013 - link
I don't think so, if you polled GTX Titan owners if they would've paid $1000 knowing 2-3 months later there would be a part that performed similarly at 35% less price, I think you would hear most of them would've waited to buy not 1, but 2 for just a bit more. Or instead of buying 2 Titans, buying 3x780s.Also, it really has nothing to do with being in a financial position or not, it's funny when Titan released I made the comment anyone interested in Titan would be better served by simply investing that money into Nvidia stock, letting that money grow on Titan's fat margins, and then buying 2x780s when they released. All according to plan, for my initial investment of 1 Titan I can buy 2x780s.
But I won't. Nvidia blew it this generation, I'll wait for Maxwell.
IanCutress - Thursday, May 23, 2013 - link
Titan was a compute card with optional gaming, rather than a gaming card with optional FP64 compute. That's why the price difference exists. If you bought a Titan card for Gaming, then you would/should have been smart enough to know that a similar card without compute was around the corner.chizow - Thursday, May 23, 2013 - link
Unfortunately, that was never how *GTX* Titan was marketed, straight from the horses mouth:"With the DNA of the world’s fastest supercomputer and the soul of NVIDIA® Kepler™ architecture, GeForce® GTX TITAN GPU is a revolution in PC gaming performance."
Not to mention the fact Titan is a horrible compute card and value outside of CUDA workloads, and even there it suffers as a serious compute card due to the lack of ECC. It's an overpriced gaming card, plain and simple.
At the time, it was still uncertain whether or not Nvidia would launch more SKUs based on GK110 ASIC, but informed consumers knew Nvidia had to do something with all the chips that didn't make the TDP cut as Tesla parts.
mayankleoboy1 - Thursday, May 23, 2013 - link
Really ? Apart from a few apps, Titan is poor compared to a 7970. It has bad OpenGL performance, which 90% of industry renderfarms use.Titan is really an overpriced gaming card.