Nvidia may have revealed the GTX 1080 and GTX 1070 recently, but it's a fair bet the lineup of 10-series graphics cards won't stop with those two models. A new rumor from the prodigious leakers at ChipHell suggests a GeForce GTX 1080 Ti and a new GTX Titan are both on the way, along with a GTX 1060 at the lower end of the market. Here's ChipHell's rumored spec table:
If ChipHell's information is in the ballpark, the "big Pascal" for consumer GeForces will be called GP102 (as friend of the site Rys Sommefeldt guessed at in his analysis of the Pascal architecture). Presumably, the new GTX Titan will get a fully-enabled version of this chip, and it could have 3840 stream processors on a 478-mm² die. That's more SPs than Nvidia puts on the GP100 chip that drives the Tesla P100, but it appears a GP102 Titan will maintain the same 1/32 FP64 throughput as the GM200 chip in the Titan X. We're guessing GP102 will omit dedicated FP64 hardware as part of its slimming-down compared to the enormous 610-mm² GP100 die.
If these rumors hold, 1/32 FP64 throughput isn't terribly surprising to see on a card like this. Nvidia positioned the similarly-provisioned GeForce Titan X as a card for deep-learning research, where getting large data sets close to the GPU seems to be more important than the ability to perform extremely precise calculations. That card's 12GB of RAM was its major selling point over the slightly cut-down GTX 980 Ti and its 6GB of RAM. We didn't find the GTX 980 Ti appreciably slower in games when we put it through our review wringer.
Given that positioning of the Titan X, a powerful GPU paired with lots of memory may be the name of the game for a Pascal Titan, as well. If ChipHell's source is correct, such a chip will have a similar memory subsystem to that of the GTX 1080—there's just more of it to go around. Again, if the shaky ground we're standing on here holds, this chip will have a 384-bit path to a whopping 24GB of GDDR5X RAM. The site guesses that such a chip would have 480-576 GB/s of aggregate memory bandwidth.
Humongous memory capacity aside, the differences between this purported Titan and its GTX 1080 Ti stablemate aren't that large. While the rumored GTX 1080 Ti may have "only" 3456 stream processors, it would appear to share the same lofty 1507MHz base and 1621MHz boost clocks of the Titan. Its memory subsystem appears similar, too—the only major difference is this card's purported 12GB of GDDR5X RAM.
Meanwhile, ChipHell also thinks a GTX 1060 will be joining the lineup beneath the GTX 1070 and GTX 1080. This cut-down chip appears to use the same GP104 GPU as its higher-end brethren, but it may end up with only 1280 stream processors, fewer texturing resources, and fewer ROPs when compared to its bigger brothers. The chip is purportedly clocked at about the same speeds as the GTX 1070—its 1545MHz base and 1658MHz boost speeds are only a few MHz off the more endowed chip—and it could have a 192-bit path to 6GB of GDDR5 memory, down from the GTX 1070's 256-bit interface and 8GB pool of RAM.
ChipHell didn't speculate about pricing information or timelines for these rumored cards, but given what we know about Pascal GPUs so far, these rumors don't seem too far off base. If the prices are right, these cards could be cause for more excitement at both the entry-to-mid-range and the highest-end markets alike. As always, we'll just have to see whether there's fire to go with all the smoke.