After launch of their high-end models, in form of Radeon 58XX series, we expected that ATI would release products that would fill mid and low range lineup as they did with previous generation. Except slightly “crippled” 5870 in form of 5850, we had chance to test two graphics cards from mid range: 5770 and 5750. Good news is that all 57XX graphics cards also support DX11 with Shader model 5, hardware tessellation and ATI Eyefinity technologies…