Super bad performance with specific games on the r9 fury nitro

[MileHighLifted]

Hi so I recently upgraded my GPU from a gtx 960 to the r9 fury nitro, I wanted to upgrade my pc but not break the bank at the same time and this card seemed like a good idea. I was mostly just hoping to make the jump from around 40-50 fps to 60-70. Now the card performed super well on one of my newst titles Titanfall 2, with the graphics maxed out I have about 80-120 fps droping to about 72-75 in large titan battles. Then comes the bad performance part, so I booted up gta 5 maxed out the graphics and im only getting 30-45 fps, Thinking that this must be a mistake I tried every fix out there and now even with the graphics on normal I cant even hit 60 fps constant like my 960 could do with the game. The same goes for far cry 4 maxed out im getting 30-45 fps most of the time, The strange part is that even at the lowest grapchis I still have the same fps. I really dont know what to do, The games I bought the card for wont even run well even though there are tons of videos out there that show those exact games running at 75 fps + with everything maxed out, Any help would be welcomed as I am out of ideas and support websites.
Here is a benchmark test of my pc:
http://www.userbenchmark.com/UserRun/2261995

 

[COLGeek]

What make/model PSU are you using?

 

[MileHighLifted]

What make/model PSU are you using?

Im using corsair cx 600M

 

[COLGeek]

It is recommended that you have a 750w PSU (or better) with the Fury. See here:

http://sapphirenitro.sapphiretech.com/en/fury.html

I suspect your Fury is underpowered and as a result is under performing.

I also noticed that your system is using a 2GB and a 8GB memory module for a total of 10GB of memory. Mixing memory can produce poor results. I would suggest just using the 8GB module and see if that improves performance, as well.

 

[MileHighLifted]

It is recommended that you have a 750w PSU (or better) with the Fury. See here:

http://sapphirenitro.sapphiretech.com/en/fury.html

I suspect your Fury is underpowered and as a result is under performing.

I also noticed that your system is using a 2GB and a 8GB memory module for a total of 10GB of memory. Mixing memory can produce poor results. I would suggest just using the 8GB module and see if that improves performance, as well.

Thanks for the info about the memory did not even know it was like that, Also do you really think its the power thats holding me back? Because In a lot of games I can get the graphics maxed out and still have awesome frames but with far cry 4 and gta 5 it seems to be lacking some how