GeForce 500 series
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The GeForce 500 series is a series of graphics processing units developed by Nvidia, as a refresh of the Fermi based GeForce 400 series. It was first released on November 9, 2010 with the GeForce GTX 580.
Its direct competitor was AMD's Radeon HD... Wikipedia
Release date: November 9, 2010; 13 years ago
Architecture: Fermi
Codename: GF11x
DirectX: Direct3D 11.0 (feature level 11_0); Shader Model 5.1
Entry-level: GT 505; GT 510; GT 520; GT 530
High-end: GTX 570; GTX 580
Mid-range: GT 545; GTX 550 Ti; GTX 560; GTX 560 Ti; GTX 560-448 Ti