Quick question, are any of these computers good for gaming?

[Andrespetmonkey]

Saruk said:

Andrespetmonkey said:

Saruk said:

The problem with this computer is that it doesn't include a hard drive, memory or operating system. 

OK, here's one that includes everything, including windows 7, I payed better attention this time:
http://www.ebay.com/itm/AMD-FX-4100-Quad-Core-3-6GHz-8G-HyperX-DDR3-1TB-HD7750-W7HP-Gaming-Desktop-PC-/380448319517?pt=Desktop_PCs&hash=item58947ca81d 

This one's a little better:

http://www.ebay.com/itm/Gateway-FX6860-UR20P-Quad-Core-i7-2600-8GB-1-5TB-DVDRW-Radeon-Gaming-Desktop-PC-/120952960361?forcev4exp=true

What kind of performance will these be able to do?

They should both do similarly to mine, which would be the best looking games at medium, most at high, some maxed. 720p/40-60fps.