Comparison of NVIDIA GeForce RTX 3090 video card vs ZOTAC Gaming GeForce RTX 3080 Ti AMP Holo video card by specs and benchmarks. NVIDIA GeForce RTX 3090 runs at 1.400 GHz base clock speed and has 24 GB of GDDR6X memory, while video card ZOTAC Gaming GeForce RTX 3080 Ti AMP Holo runs at 1.400 GHz base clock speed and has 12 GB of GDDR6X memory. The weight is different, vs --. The TDP of the first video card is 350 W, and the second is 350 W . Compare the benchmark results to find out which video card is better.