The following are the system requirements recommended for 3rd CBT.

Note that TERA is a visually beautiful and stunning game and having a really good PC will certainly make it look better, however it can run on lower settings just fine.

Minimum Recommended
OS WINDOWS XP WINDOWS XP
CPU INTEL PENTIUM 4 3.20GHZ INTEL CORE2 DUO E6750 @ 2.66GHZ
RAM 2G 2GB or more
Graphics GEFORCE 7600 GT GEFORCE 8800 GT
Direct X DirectX 9.0C DirectX 9.0C or higher
Harddisk 40GB 40GB or more