Comparison of Colorful iGame GeForce GTX 1080 U-TOP-8G-V video card vs PNY GeForce GTX 1660 6GB XLR8 Gaming OC Single Fan video card by specifications and benchmarks. Colorful iGame GeForce GTX 1080 U-TOP-8G-V runs at 1.607 GHz base clock speed and has 8 GB of GDDR5X memory, while video card PNY GeForce GTX 1660 6GB XLR8 Gaming OC Single Fan runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 180 W, and the second is 125 W+ 4 %. Compare the table of benchmark results to find out which graphic card is better.