[solved] some questions about hashcat

i'm newbie with hashcat!my graphic card is R9 380X.

1,Which version should I use?

if i use GPU which version i can use?hashcat(clone github) or oclhashcat?

2,if i must install the Ubuntu 16.04( i heard which with the amd GPU driver )?
my system is Ubuntu 14.04.2 LTS(server/no gui) now, i use pyrit before and benchmark is 80000pmks per second!
i google and find R9 380X can get 145000 hash/s(wpa/wpa2),i suspect that is a driver issue.
i download the driver(AMD Radeon Software Crimson Edition 15.12 Proprietary Ubuntu 14.04 x86_64 Minimal Video Driver for Graphics Accelerators (Non-X Support) but always unsucceed!so i must apt-get install flgrx.

thks for any suggestion?