This is the best second generation CPU that has 45W TDP, very high processing power, lower temps (max 88 degrees Celsius in Crysis 2 at ultra settings) compared with my old 2630qm.
It has the best memory controller I ever had , I turned my old laptop (asus k53sv) into a savage beast capable to run DDR3L 1.35v at 18600Mhz and every memory I tried, it worked flawlessly (DDR3 1.5v 1333mhz, DDR3L 1.35v 1600mhz), I haven't tried ddr3 2133 but I don't think will make a notable difference.
This processor is better than most 3rd generation i7, close to 4th generation quad core i7.