I have tried it on 3 different computers- 1 with an older workstation- Xeon 6 core (W3680), 24GB RAM and a RTX1060 Super, 1 with a laptop with i7 11800H, 32GB RAM and RTX A2000 and a newer desktop with i712700 KF, 32GB RAM and RTX4060. A 2-hour video is taking 16 (8X) to 28 hrs. (14X). I would say the estimated times on the home page are pretty spot on. However, I did take the 4060 out of the newer desktop and tried it in the workstation and it did not perform any better than the much older 1660 Super. So, I assume even with the graphics cards as listed on the product page, you need a good match CPU that won't bottleneck the card.