even though 1080 handles power and speeds/overclock swimmingly- the compute units on 1080ti makes a big difference.
Much higher memory bandwidth 484.4 GB/s vs 224.4 GB/s Around 2.2x higher memory bandwidth
More memory 11,264 MB vs 8,192 MB Around 40% more memory
Better floating-point performance 11,340 GFLOPS vs 8,228 GFLOPS Around 40% better floating-point performance
Better PassMark score 13,373 vs 11,994 More than 10% better PassMark score
Much better manhattan score 8,910.85 vs 3,708.5 Around 2.5x better manhattan score
Higher texture rate 354.4 GTexel/s vs 257.1 GTexel/s Around 40% higher texture rate
Higher pixel rate 139.2 GPixel/s vs 102.8 GPixel/s More than 35% higher pixel rate
Higher effective memory clock speed 11,008 MHz vs 10,008 MHz Around 10% higher effective memory clock speed
More render output processors 88 vs 64 24 more render output processors
More shading units 3,584 vs 2,560 1024 more shading units
More texture mapping units 224 vs 160 64 more texture mapping units
Better PassMark direct compute score 9,513 vs 8,106 More than 15% better PassMark direct compute score
Slightly higher memory clock speed 1,376 MHz vs 1,251 MHz Around 10% higher memory clock speed