Sysmark is a rubbish benchmark but no matter what the pentium is faster except for gaming where it's worse unless you add a discrete graphics card. They are different kinds of chip - the E series AMD chips are better for HTPC's and very light use while the pentium is more of a general budget chip. If all you want is some light gaming and internet go with the e350 or e450 and if you want medium settings gaming get the pentium and a graphics card like a HD 6770.