GeForce GT 420 Review
GeForce GT 420 is an entry-level GPU based on the 40nm Fermi architecture.
It's based on the Fermi GF108 Core and offers 48 Shader Processing Units, 4 TMUs and 4 ROPs, on 64-bit memory interface of standard DDR3. The central unit runs at 700MHz and the memory clock operates at 900MHz.
Compared to GeForce GT 430, it features half the amount of Shading Units and less TMUs. It also features half the memory bandwidth due to the 64-bit bus but the latter shouldn't reduce its performance significantly, under most circumstances.
Still, GeForce GT 420 is only suited for modest 3D games (high settings). Modern demanding games will have to be played at the lowest settings.