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HP Recommended
HP Pavilion 15-n259tx Notebook PC (ENERGY STAR)
Microsoft Windows 8.1 (64-bit)

I feel my AMD Radeon (TM) HD8670M is Unusable. I have tried updating its drivers from AMD , HP sites, & in past I also did clean install of its drivers still not helping. Whenever I run 'dxdiag.exe' on my windows the display on my laptop start blinking 1 to 2 times and becomes normal after closing the application like shown in the screenshot below same happens with application 'Novabench' I have installed to check my laptop benchmarks and GPU performance but it shows 0 there.I don't know what to do anymore. KIndly help!

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