Computer Build for Rendering?

So this is a current build, with the focus of rendering many frames in the least amount of time possible. ASRock Z77 Extreme4 Socket LGA 1155 Z77 ATX Intel + Core i7 3770K 3.5GHz Socket LGA 1155 Boxed Processor Enermax Ostrog Black Case with Red Trim 840 EVO MZ-7TE120BW 120GB SATA 6.0Gb/s 2.5" Internal... show more So this is a current build, with the focus of rendering many frames in the least amount of time possible.

ASRock Z77 Extreme4 Socket LGA 1155 Z77 ATX Intel + Core i7 3770K 3.5GHz Socket LGA 1155 Boxed Processor

Enermax Ostrog Black Case with Red Trim

840 EVO MZ-7TE120BW 120GB SATA 6.0Gb/s 2.5" Internal Solid State Drive Upgrade Kit (SSD)

DDR3 16GB 1333MHz QUAD MEMORY PGV316G1333ELQK

Desktop Mainstream 2TB Intellipower SATA 6.0Gb/s 3.5" Internal Hard Drive WDBH2D0020HNC-NRSN

Corsair CX Series CP-9020058-NA 430W Modular Power Supply - 80+ Bronze, ATX, Modular Cabling, Active PFC, Single +12V Rail, Low Noise, Trouble-free Installation

I really have no idea which graphics card to go with. I render with Maya Autodesk and After Effects.
Which graphics card would be the best, and not too expensive. It would also help if you can suggest things to add or replace in my current build. The current total is around $680. I want the whole build to be under $800.
Thanks!
4 answers 4