It has the same Core i7-2360QM quad core Sandy Bridge CPU and Radeon HD 6770M graphics card as the dv7tm. So it's gaming performance will be the same.
It has all the expected nice extras, WiFi, Webcam, Bluetooth, etc.
The 15.6" 1366x768 LCD resolution vs the 17.3" 1600x900 resolution. 1600x900 would have been nice - but 1366x768 resolution is OK.