Disaphi :
Back then you can run any game with pretty much any pc but now you need a gaming pc to run crisis but back then you could run crisis with any pc. what?
Nope, there have always been minimum/recommended requirements for games.
Even back in the day with my original version of X-Wing (multiple 3.5" floppies), you had to 1) have 4MB of RAM installed on the PC (a lot of them back then only came with 1MB, since DOS/Windows 3.1 was originally set up only to access 640kB), & 2) you had to run a special bootdisk floppy to have it access that RAM.
Things are at least way, way easier now. Back then, you had to worry about hardware conflicts (i.e. those irritating IRQ errors), because you literally could have some other piece of hardware blocking access to the sound card, or you had to use different settings for every single game. Heck, I remember the improvement in how my family's first PC ran once we installed a video card so that would have "true-color" graphics (pretty sure it was one of those 1MB VRAM cards that provided either a SuperVGA or XGA output).
And I swear, I've seen the occasional benchmarking article over the past couple of years where they go back & test the system to see how well it will run Crysis 3 -- like this article here (https://www.techspot.com/review/1174-nvidia-geforce-gtx-1080/page6.html). Note in particular that, until the GTX 1080 came along, you didn't have a GPU that really pulled ahead of the top-line cards they originally tested it with (https://www.techspot.com/review/642-crysis-3-performance/page5.html).
In short...there's always been a variation as to how systems will handle a game, & it all boils down to whether their hardware can handle it or not.