Acer Aspire 7750G AS7750-6458, Intel SB Core I5 cpu, AMD Radeon 6850M GPU, 649.99$ on B&H

after 80$ instant discount.

17.3″ gaming  laptop, top performance to its price. I don’t think I’ve seen any other laptop better than this in that price range. For 650$ it’s probably the fastest laptop, fps-wise. However, you won’t get a good screen with it - look at the 800$ class great gaming laptops with a good screen too.

 

source: http://www.bhphotovideo.com/c/product/829664-REG/Acer_LX_RNA02_008_Aspire_7750_AS7750_6458_17_3.html

review for the Acer Aspire 7750G