Comparison of Sapphire Nitro+ Radeon RX 6900 XT SE (Rev 2.0) video card vs MANLI GeForce GTX 1660 Gallardo (M2436+N549-00) video card by specifications and benchmarks. Sapphire Nitro+ Radeon RX 6900 XT SE (Rev 2.0) runs at 1.825 GHz base clock speed and has 16 GB of GDDR6 memory, while video card MANLI GeForce GTX 1660 Gallardo (M2436+N549-00) runs at 1.530 GHz base clock speed and has 6 GB of GDDR5 memory. The TDP of the first video card is 363 W+ 21 %, and the second is 120 W. Compare the table of benchmark results to find out which graphic card is better.