I think I'm missing something.
I have:
Intel Core i5-2400
AMD Radeon HD6870 1GB
8GB RAM
According to this thread's information, my PC doesn't meet minimum system requirements.
I thought at first that it's fine - my PC is 3 years old now and it wasn't monster to start with.
I used to think about buying PS4 from time to time because of exclusives and because my fiancee would like to play games with PS4 Eye.
I thought that maybe I'll buy The Witcher 3 for PS4 then and be done with it. Unfortunately I decided to do little research.
I've found technical specs of PS4 (especially GPU) and mine.
PS4 My PC
Floating point performance: 1,84 Gflops 2,08 Gflops
Pixel rate 25,6GP/s 29,8GP/s
Texture rate 57,6GT/s 52,1GT/s
Clock 800MHz 900MHz
Bandwith 176GB/s 134,4GB/s (more than Xbox One)
Overall my GPU seems at least on par with PS4's. What is the reason for HD 7870 as minimum if it's a lot better than PS4's GPU?
I'm at loss.
One consideration that hasn't been given much attention is GPU architecture. AMD 77xx and later cards (as well as the console APUs) are GCN; earlier cards are VLIW. The two are very different and program very differently.
Both support DirectX 11, so there should not be "won't run because not compatible" issues. But a lot of inefficiencies due to the use of VLIW go away in GCN, and I would expect GCN cards to outperform comparable VLIW cards on new engines like TW3's.
There's also a difference between what will work and what your support department is prepared to deal with. You don't tell your customers that you will support hardware your support crew isn't prepared to deal with.