The NVIDIA GeForce GTX 780 Ti Review
by Ryan Smith on November 7, 2013 9:01 AM ESTMeet The GeForce GTX 780 Ti
When it comes to the physical design and functionality of the GTX 780 Ti, to no surprise NVIDIA is sticking with what works. The design of the GTX Titan and its associated cooler have proven themselves twice over now between the GTX Titan and the GTX 780, so with only the slightest of changes this is what NVIDIA is going with for GTX 780 Ti, too. Consequently there’s very little new material to cover here, but we’ll quickly hit the high points before recapping the general design of what has now become the GTX 780 series.
The biggest change here is that GTX 780 Ti is the first NVIDIA launch product to feature the new B1 revision of their GK110 GPU. B1 has already been shipping for a couple of months now, so GTX 780 Ti isn’t the first card to get this new GPU. However while GTX Titan and GTX 780 products currently contain a mix of the old and new revisions as NVIDIA completes the change-over, GTX 780 Ti will be B1 (and only B1) right out the door.
As for what’s new for B1, NVIDIA is telling us that it’s a fairly tame revision of GK110. NVIDIA hasn’t made any significant changes to the GPU, rather they’ve merely gone in and fixed some errata that were in the earlier revision of GK110, and in the meantime tightened up the design and leakage just a bit to nudge power usage down, the latter of which is helpful for countering the greater power draw from lighting up the 15th and final SMX. Otherwise B1 doesn’t have any feature changes nor significant changes in its power characteristics relative to the previous revision, so it should be a fairly small footnote compared to GTX 780.
The other notable change coming with GTX 780 Ti is that NVIDIA has slightly adjusted the default temperature throttle point, increasing it from 80C to 83C. The difference in cooling efficiency itself will be trivial, but since NVIDIA is using the exact same fan curve on the GTX 780 Ti as they did the GTX 780, the higher temperature throttle effectively increases the card’s equilibrium point, and therefore the average fan speed under load. Or put another way, but letting it get a bit warmer the GTX 780 Ti will ramp up its fan a bit more and throttle a bit less, which should help offset the card’s increased power consumption while also keeping thermal throttling minimized.
GeForce GTX 780 Series Temperature Targets | ||||
GTX 780 Ti Temp Target | GTX 780 Temp Target | GTX Titan Temp Target | ||
83C | 80C | 80C |
Moving on, since the design of the GTX 780 Ti is a near carbon copy of GTX 780, we’re essentially looking at GTX 780 with better specs and new trimmings. NVIDIA’s very effective (and still quite unique) metallic GTX Titan cooler is back, this time featuring black lettering and a black tinted window. As such GTX 780 Ti remains 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 the GTX 780 Ti is a quiet card despite the fact that it’s a 250W blower design, while still maintaining the solid feel and eye-catching design that NVIDIA has opted for with this generation of cards.
Drilling down, the PCB is also a re-use from GTX 780. It’s the same GK110 GPU mounted on the same PCB with the same 6+2 phase power design. This being despite the fact that GTX 780 Ti features faster 7GHz memory, indicating that NVIDIA was able to hit their higher memory speed targets without making any obvious changes to the PCB or memory trace layouts. Meanwhile the reuse of the power delivery subsystem is a reflection of the fact that GTX 780 Ti has the same 250W TDP limit as GTX 780 and GTX Titan, though unlike those two cards GTX 780 Ti will have the least headroom to spare and will come the closest to hitting it, due to the general uptick in power requirements from having 15 active SMXes. Finally, 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.
On a final note, for custom cards NVIDIA won’t be allowing custom cards right off the bat – everything today will be a reference card – but with NVIDIA’s partners having already put together their custom GK110 designs for GTX 780, custom designs for GTX 780 Ti will come very quickly. Consequently, expect most (if not all of them) to be variants of their existing custom GTX 780 designs.
302 Comments
View All Comments
Tetracycloide - Thursday, November 7, 2013 - link
Hardware vendors get much better prices than that which is why you so often find third party coolers on custom cards for a fairly modest markup ($10-20).nathanddrews - Friday, November 8, 2013 - link
The Arctic Accelero Xtreme III that Tom's used was only $70, but even if it was $100 extra, that's still a $150 gap. For vendors, subtract the cost of the bad cooler from the good cooler and I'll bet we see dual/tri-fan 290s for under $450.Also, this is interesting:
http://www.tomshardware.com/reviews/radeon-r9-290-...
Mithan - Thursday, November 7, 2013 - link
Great card, but about $150 over priced. I would purchase this for $550 right now, but $700? No.1Angelreloaded - Thursday, November 7, 2013 - link
Maxwell is due out next year, so tbh this would be a bad bandwagon to jump on, an architechure change and possible die shrink will come next year and depending on yields I would anticipate a 10-15% jump in the next series with lower tdp.kwrzesien - Thursday, November 7, 2013 - link
Maybe even at $600. $700? No.Nirvanaosc - Thursday, November 7, 2013 - link
Great review, but the Overclocking section still has the same text as the R9 290 review.piroroadkill - Thursday, November 7, 2013 - link
290 and 290X look even better in this when used in CF. They scale better than 780Ti in SLI.You can save even more with 290X CF than 780Ti, AND get better performance in almost every test listed.
With that setup you'd be wise in either case to get a nice custom cooling loop anyway.
Gast - Thursday, November 7, 2013 - link
1st paragraph of the conclusion. "NVIDIA’s high-end cards a bit faster and a big cheaper each time."Should be "a bit cheaper each time".
Pneumothorax - Thursday, November 7, 2013 - link
Sad, this goes to show that Nvidia was selling us mid-range Keplers all last year at premium prices. This card is what the GTX 680 should've been all along. OTOH, if the 7970 was priced much better out of the gate, it might've forced the green team not to have ripped us off so much.EJS1980 - Thursday, November 7, 2013 - link
If Nvidia released this as their answer to the 7970, AMD would have simply gone out of business. Maybe AMD should thank NVidia for showing them mercy, and keeping them afloat...j/k!