So Horizon Zero Dawn PC performance reviews are coming in. For the most part, it's not very optimized across the board. I'd wait for some post launch patches before buying it. The weird thing is that the FAQ from the devs themselves said:
"We recommend an Intel Core i7-4770K @ 3.5GHz or an AMD Ryzen 5 1500X @ 3.5GHz CPU, 16 GB of RAM and a Nvidia GeForce GTX 1060 (6 GB) or AMD Radeon RX 480 (4 GB) graphics card to run Horizon Zero Dawn Complete Edition for PC at the original settings in 1080p at 60 frames per second."
However most previews atm don't see that as the case at all so there's something weird going on. 
That is in ultra settings so the visuals are higher than what you would get in the original ps4 pro. The other thing that makes these reviews also a big urghh worthy is that a lot of them don't have the day 1 patch applied as most of these went out prior.
https://www.computerbase.de/2020-08/horizon-zero-dawn-benchmark-test/
One interesting thing is:
"The game makes significant use of PCIe bandwidth. Having your GPU connected via fewer than 16 PCIe lanes reduces performance to a larger degree than any other game either of us is aware of."
https://www.ign.com/articles/horizon-zero-dawn-pc-port-analysis
Some reviewers did manage to get 1080p 60fps on their 1060 but it's unclear as to how.
https://www.rockpapershotgun.com/2020/08/05/horizon-zero-dawn-on-pc-comfortably-outperforms-ps4-in-this-brilliant-port/
But yea, I'd wait till they get their optimizations sorted out as it doesn't make any sense for Vega 64 to perform worse than a 590 amongst a ton of other performance issues.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850
