I just tried the Heaven DX11 benchmark on my 660Ti. It got phenomenally better results than my 560Ti but I noticed a lot of screen tearing in areas. Is my 660Ti really a faulty card, or are the lines and squealing I see in some games something else?
I saw 0 lines and heard no squealing during the benchmark. I only saw a lot of screen tearing.
Benchmark AVG FPS in Heaven DX11:
GTX 560Ti: 15fps
GTX 660Ti: 49fps