Question Rx 470 game stutter

[Chewygreen18]

Hello i have a huge issue ever since i have had this graphics card im getting issues here are my specs before i go into detail
XFX Rx 470 4gb oc gpu 1250 to 1290
mem clock 1750 to 1795
i5 4460
1x8gb ddr3 1600mhz
1x4gb ddr3 1600mhz
standard 7200rpm hdd
my issue is that in nearly every game i play older or new my gpu seems to have these big frame drops or even little ones that throw off the game play
have been trying to play dead rising 2 and that has been a mess also
ive got newest drivers and ive have done ddu but nothing
my temps are okay they are going at most high 60s during certain games
when i look in radeon software though my gpu usage is all over the place its going from 10% to 70% it just constantly fluctuates and when i use rivatuner
it only shows anywhere from 30% to at most 45% being used so i dont know whats happening
i have also increased power limit on card to see if it was an issue and also played around with graphics settings but nothing
Thankyou to whoever takes the time to read this or even tries to helps

 

[rgd1101]

cpu/gpu temp and usage during the game?
mixing ram? did you run any memory test?
make and model of the psu?

malware scan the system?

 

[Chewygreen18]

the GPU is at 66 Celsius and the CPU is at 60 Celsius , it is mixed ram theres no malware ive done a scan and reinstalled windows and the psu is a 500w 80 bronze aerocool integrator its only 3 months old
I had a gtx 950 in this build not so long ago and i was having no issues