VideoCardz also found some more specifications of models from MSI and Palit. These cards are now listed on the site of Russian retailers.
Palit has the GeForce GTX 1660 Ti Storm X and Storm X OC single-fan cards and the dual-fan GeForce GTX 1660 Ti Gaming Pro, while MSI has GAMING X and ARMOR OC versions.
MSI’s GAMING X and ARMOR OC have also been listed revealing slightly higher clocks (1536 MHz vs 1500 MHz ‘base’).According to earlier leaks, these cards may hit the market as early as next week.
The boost clock of GTX 1660 Ti Storm X OC is 1815 MHz, which is 45 MHz over reference specs (this info was not listed by any retailer). Both cards are listed for around 400 USD.
Some retailers have the full specs for GTX 1660 Ti Storm X (non-OC), which has a reference clock speed of 1500/1770 MHz. The page confirms GTX 1660 Ti has 12 GHz memory clock (2 GHz lower than RTX series).