Specs: TU117 GPU
NVIDIA did some more chopping down of the GPU on the new TU117, where it doesn't even require a PCIe power connector as its TDP is just 75W. The custom GTX 1650s on the market, like the MSI GeForce GTX 1650 GAMING X 4G, can make use of a PCIe power connector. The MSI card we have here today has a single 6-pin PCIe power connector.
Inside, the TU117 has 896 CUDA cores, 4GB of GDDR5 on a 128-bit memory bus with 128GB/sec of memory bandwidth. The TU117 GPU itself is clocked at 1485/1665MHz for base and boost, respectively.
Specs: TU116 GPU
NVIDIA launched the mid-range TU116 GPU with the release of its GeForce GTX 1660 Ti, and uses the same TU116 for its new GeForce GTX 1660 graphics card. There are some changes to the CUDA core count, GDDR memory used, and more.
The slightly higher-end GeForce GTX 1660 Ti rolls out with 1536 CUDA cores while the new GTX 1660 packs 1408 CUDA cores, but the GTX 1660 has higher GPU clock speeds of 1530/1785MHz compared to 1500/1770MHz of the GTX 1660 Ti. Remember this is from a reference standpoint (and there is no Founders Edition card) while MSI has its custom cards overclocked out of the box.
One of the largest differences between the GeForce GTX 1660 and the higher-end GTX 1660 Ti is that the new GTX 1660 has 6GB of GDDR5 memory, versus the 6GB of GDDR6 on the GTX 1660 Ti.