It's common practice for companies to send out press decks and other information ahead of new product launches, and of course actual hardware as well (so reviews are ready to post). This kind of information is almost always shared under embargo.
That's also how leaks happen. As it were, the folks at Videocardz claim to have gotten their hands on information pertaining to the full specifications of both unreleased cards. Here they are, next to neighboring cards for easy comparisons...
Leaked GeForce GTX 1660/1650 Super Specifications
|GeForce GTX 1660
||GeForce GTX 1660 Super
||GeForce GTX 1650 Super
||GeForce GTX 1650
||12nm TU116-300||12nm TU116-300
||12nm TU116|| 12nm TU116
||1500 MHz|| 1530 MHz
||1530 MHz|| 1530 MHz
||1770 MHz|| 1785 MHz
||1785 MHz|| 1725 MHz
||6GB GDDR6||6GB GDDR6
||6GB GDDR5||4GB GDDR6
||12 Gbps||14 Gbps
||8 Gbps|| 12 Gbps
||288 GB/s|| 336 GB/s
||192 GB/s|| 192 GB/s
||120 W|| 125 W
||120 W|| 100 W
There is not much in the way of surprises here—these specifications have been leaked out already, for the most part. With regards to the GeForce GTX 1660 Super, we're looking at an upgrade from GDDR5 to GDDR6 memory, which in turn bumps the memory bandwidth up from 192GB/s to 336GB/s.
The GeForce GTX 1650 Super is a more substantial upgrade over the non-Super model—it gains more CUDA cores, faster clockspeeds, and an upgrade to GDDR6 memory, resulting in more memory bandwidth.
Pricing is the big mystery on the 1650 Super part. There is only a $10 bump in price on the GeForce GTX 1660 Super versus the non-Super model, though the 1650 Super represents a bigger upgrade. So, we'll have to wait and see what NVIDIA decides.
GeForce GTX 1660 Super Benchmarks
This is just one benchmark, though, and a leaked on at that. In other words, let's not read too much into these results. Good news though—if other leaks are right, the GeForce GTX 1660 Super will debut very soon (October 29), so we'll find out soon enough what this card is made of.