As expected, and it was only a matter of time before some sort of leak would occur on this product series. It's now obvious that the soon to be released GeForce GTX 1660 (read it well, the non-Ti model) is fitted with GDDR5 graphics memory, 6 GB of it.
Some products from the MSI lineup have surfaced at Videocardz. Interesting is that the product now to be said shader proc count is 1408. The TU116-300 GPU empowered cards would see a reference base clock speed of 1530 MHz with a turbo to 1785 MHz. Custom models would go up to 1860 MHz on that boost frequency. They mention a price of 219 USD with a release on the 14th.
MSI GeForce GTX 1660 Spotted - Listed with 6GB GDDR5
