Which of these desktops has the best performance in high-end games?

2

1

3

If you can up the budget $150 or so, to roughly $830 you can get:

Amd Fx-8350 ($200)

Gigabyte 970A-D3 ($100)

Gigabyte HD 7950 ($300, with BioShock and crysis free)

8Gb 1600Mhz ram ($50)

1Tb 7200rpm HDD ($60-70)

500W-600W PSU ($60-70)

Zalman cases (~$50 with rebates)

Total cost: ~$830

The PC you linked to was just shy of $700 (2). But with that GTX 620 card it just ruins it. This one would absolutely smoke it for gaming performance.

You could get the HD 7770 and shave off $150 bringing the price on par to $680 (same as link 2). But the 7950 is much better than the 7770, worth the investment for future reliability.

You also get a 600W PSU over the 400W one supplied in link 2 (the best one). Also the Fx-8350 can best even the i7-3770k in some games, so it is actually better than the i5-3570k as well.

Overall you can beat the best link you gave (#2) for cheaper if you build it yourself. AND you get FREE games with this video card (1 for the 7770, and 2 for the 7950). Same price, better specs, free games! How could you not want to build your own?

Also you state you would like to stay above 20 fps. Hahahaha. Don't worry, you build this PC (especially with the 7950) and you will be gaming ultra settings with at least 60 fps in almost all games (except crysis 3, which is the most hardware intensive game ever created).

3 - i5 3570k basically kills the fx 6100.

1 - #2 might have a better gpu but it has a low range radeon 620 which is holding it back. You'll get alot more fps with the 7770 + it has an ssd for faster loading times.

2 - as i said before it has a radeon 620 which is a low end GPU which will bottleneck your GPU.

I will say number 2 is about as close as you will get but even that is limited. You are asking for high performance, and tell you the truth you are not going to get high performance from neither of these computers you looked at. Good high performance computers have to normally be built yourself to suite your gaming needs. For you I say about $ 900.00 to $ 1200.00 would be sufficient to build a real powerful computer that can handle the latest games on high settings. Real gamers will do SLI which means run two Nvida cards to double the graphics rendering power.

I built me a moderate end computer but I use it for science work so I don't really game on it so the graphic power doesn't matter to me that much. But for you a core i7 with 16 GB of RAM with SLI will give you the performance that will blow you out the window and you will love everything about it.