GPU usage trouble, fx-6300+r9 270x

buyashka

Commendable
Jun 14, 2016
2
0
1,510
hi, everybody!
yesterday i got doom demo and wondering about my gpu usage and it seems to jump up to down all the way. cpu usage is about 50%. gpu core clock drops from time to time. vram almost full used.
i tried different quality setting and log it(link below).
1st test: advanced settings - low, performance metric - nightmare.
2nd test: advanced settings - ultra, performance metric - nightmare.
3rd test: advanced settings - ultra, performance metric - low.
resolution is 1920x1080.
in BF4 i had almost the same problems, except cpu loads up to 90%.
any ideas which component can cause these troubles?
thanks in advance!

my hardware list:
cpu: fx-6300 OC @ 4.20GHz
gpu: powercolor r9 270x 2Gb(model AXR9 270X 2GBD5-DH/OC, with one fan)
cpu fan: thermaltake contac 21
ram: corsair vengeance 2x4Gb 1600MHz
psu: aerocool strike-x 500w
os: windows 8.1
all drivers are up to date.

MSI Afterburner log
https://drive.google.com/file/d/0Bz9nZCe0eZMhb0dOQl9CODhIaUU/view?usp=sharing