GeForce GT 620 is an Entry-Level Graphics Card based on the revision of the Fermi Architecture.
The Fermi Architecture is manufactured with a 40nm technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature. Fermi is also the first GPU architecture with fully cached memory access which increases memory performance. It equips a GPU codenamed Fermi GF108-100-KB-A1 which has 2 Stream Multiprocessors activated and thus offers 96 Shader Processing Units, 16 TMUs and 4 ROPs. The Central Unit is clocked at 700MHz.The GPU accesses a 2GB frame buffer of DDR3, through a 128-bit memory interface. Features DirectX 11.0