Yeah you certainly won’t need that.
I do agree with @callfreak, but I’d recommend at least an RTX 4070 level card. As for the CPU, you go with one that’s appropriate for your chosen GPU.
The minimum officially recommended RAM capacity for UE 5 is 32 GB btw, and 8 GB for VRAM. 64 GB would be even better, but there’s absolutely no reason to go over that.
If the project’s truly gonna be an open world game with fairly realistic graphics, the specs I mentioned above can actually suffice. But since we don’t know exactly what you have in mind, here are the specs you’ll wanna go for to be safe:
- 64 GB DDR5 RAM
- 16 GB VRAM
- 1 TB SSD (not for the system, 1 TB should suffice especially if it’s dedicated to the project)
- A RTX 4080 level card (AMD is also fine btw. And realistically you’ll probably only manage to find a 50 series card, but no worries 12 GB of VRAM is also great if you end up getting a 5070, possibly more than enough if you’re not gonna work on very large & realistic scenes. Still I’d pick 4080 / 4080 Super over 5070, and also 4080 / 4080 S over 5070 Ti but that depends on price & priorities, you should probably prefer 5070 Ti over 4080 / 4080 S if you’re a gamer)
- An appropriate CPU (For example R7 7800X3D is appropriate for a 4080 level card. What you have in mind, R9 9950X3D, isn’t actually much better. If in your region they’re similarly priced, sure why not go with R9 9950X3D? But if not, it’s not really worth it. And both in gaming and game development, CPU is rarely the reason behind performance issues. Most of the time it’s RAM and VRAM. Btw Intel is also fine.)
Hope these help! 