I currently have a Athlon X4 640, 4 GB Corsair RAM at 800 MHz, ASUS M4A784-M,and a integrated Radeon HD 4200 on motherboard.
I'm wondering whether or not if I get a GTX 580 will there be a extreme bottleneck and would they be compatible? Also, if there's a bottleneck is there something else I should upgrade for PC gaming like getting a new mobo, CPU, etc...
in that case i your wasting your money. buying such a big card for such a small screen.
you may as well just get a 450.
anything over a 460 1gig and you really want a 1920/1080 monitor minimum. any less than that and your not gonna see the best from your card.
GTX 580 should get 50 FPS upwards average on Crysis 2 I'd say. Personally I wouldn't spend 5K on a PC I'd spend some now and then some in the future on upgrades. Also just because the screen is 62", the resolution is still 1920X1080 (The same as a 24" monitor) so 3 GTX 590s is major overkill.
I don't think you can Tri SLI the GTX 590 because it has 2 GPUs inside it, so you can only have 2 in one system working together.