I find it very strange that you in Graphics Card Hierarchy charts (the http://www.tomshardware.com/reviews/gaming-graphics-card-geforce-gtx-480,2598-6.html) will find the ATI hd 4550 below the Geforce 6600 and 6800
I haven't find a single charts proven this
for instance:
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-q3-2009-mainstream-quality/Sum-of-FPS-Benchmarks-Totals,1798.html
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-q3-2009-mainstream-quality/3DMark06-v1.1.0-3DMark-Score,1797.html
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-q3-2009-mainstream-quality/F.E.A.R.-2,1777.html
I haven't find a single charts proven this
for instance:
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-q3-2009-mainstream-quality/Sum-of-FPS-Benchmarks-Totals,1798.html
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-q3-2009-mainstream-quality/3DMark06-v1.1.0-3DMark-Score,1797.html
http://www.tomshardware.com/charts/gaming-graphics-cards-charts-q3-2009-mainstream-quality/F.E.A.R.-2,1777.html