So, there's a new rumor coming from your regular websites. NVIDIA is launching its new GTX 1070 Ti graphics card, the rumor now is that it cannot be overclocked and that all cards will get a 1607/1683 MHz base/boost clock frequency.

This rumor as such is rather hard to believe. We do think that you'll only see AIB cards as Nvidia will likely not make any reference (Founders) cards. So the rumor, and again, .. rumor .. is that the clock frequency cannot be changed by board partners (factory tweaks) by the AIB partners, e.g. all cards would be clocked the same 1607/1683 MHz base boost clock. If this rumor is true, it might be in place to prevent the 1070 Ti to surpass GTX 1080 performance. 

Expreview (Google translation):

Xiao Bian get exclusive news, NVIDIA will be fully unified market GTX 1070 Ti frequency, that is, regardless of which you buy a GTX 1070 Ti their frequency will be fixed at 1607MHz-1683MHz , if you want to be stronger performance only Can be manual overclocking, for non-hardware enthusiasts are not friendly, or graphics card manufacturers have to surprise, such as get a software overclocking to avoid restrictions on NVIDIA.

Earlier on sources confirmed a release end of October. The GPU has 20 Shader clusters, just one would be disabled totalling towards 2432, which is just 128 shader procs lower than that of the GTX 1080. The clock speeds of the GTX 1070 Ti would be higher than the GTX 1070 as well at 1607 MHz and a 1683 MHz GPU Boost woth 8.00 GHz (GDDR5-effective) memory clock. The TDP would be 180W, similar to the GTX 1080. If I perform some reverse math on this, the product would offer just over 8 TFLOPS in perf. 

Reference GeForce	Titan X	GTX 1080	GTX 1070 Ti	GTX 1070	GTX 1060	GTX 980 Ti
	(2016 edition)
GPU	GP102-400-A1	GP104-400-A1	GP104-300-A1	GP104-200-A1	GP106-400-A1	GM200
Architecture	Pascal	Pascal	Pascal	Pascal	Pascal	Maxwell
Transistor count	12 Billion	7.2 Billion	7.2 Billion	7.2 Billion	4.4 Billion	8 Billion
Fabrication Node	TSMC 16 nm	TSMC 16 nm	TSMC 16 nm	TSMC 16 nm	TSMC 16 nm	TSMC 28 nm
CUDA Cores	3,584	2,560	2,432	1,920	1,280	2,816
SMMs / SMXs	28	20	19	15	10	22
ROPs	96	64	64	64	48	96
GPU Clock Core	1,417 MHz	1,607 MHz	1,607 MHz	1,506 MHz	1,506 MHz	1,002 MHz
GPU Boost clock	1,531 MHz	1,733 MHz	1,683 MHz	1,683 MHz	1,709 MHz	1,076 MHz
Memory Clock	2,500 MHz	2,500 MHz	2,000 MHz	2,000 MHz	2,000 MHz	1,753 MHz
Memory Size	12 GB	8 GB	8 GB	8 GB	3 GB / 6 GB	6 GB
Memory Bus	384-bit	256-bit	256-bit	256-bit	192-bit	384-bit
Memory Bandwidth	480 GB/s	320 GB/s	256 GB/s	256 GB/s	192 GB/s	337 GB/s
FP Performance	11.0 TFLOPS	9.0 TFLOPS	8.17 TFLOPS	6.45 TFLOPS	4.61 TFLOPS	6.4 TFLOPS
GPU Thermal Threshold	94 Degrees C	94 Degrees C	94 Degrees C	94 Degrees C	94 Degrees C	91 Degrees C
TDP	250 Watts	180 Watts	180 Watts	150 Watts	120 Watts	250 Watts
Launch MSRP ref	$1200	$499	$399	$379/$449	$249/$299	$699

Rumor: GeForce GTX 1070 Ti to get locked 1607/1683 MHz base/boost clock