Comparison of ZOTAC GeForce GTX 1080 Ti AMP Extreme Core Edition video card vs PNY GeForce GTX 1660 6GB Blower video card by specifications and benchmarks. ZOTAC GeForce GTX 1080 Ti AMP Extreme Core Edition runs at 1.607 GHz+ 9 % base clock speed and has 11 GB of GDDR5X memory, while video card PNY GeForce GTX 1660 6GB Blower runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 320 W+ 28 %, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.