Underperforming GPU, suggestions?

[Rogerabbit]

Today I received my R9 390, I decided to first test it on Titanfall, I ran it on full ultra settings, 16x AA etc. but my fps was hovering around 30-35. This was also the case with Fallout 4 and Arkham Knight (which I know has issues anyway). I even tried overclocking it at full power and increasing clock and I'm still getting issues.

I'm using a pretty crappy MOBO (can't actually find it now but an old stock acer office PC one), I am also now limiting myself to 4GB of old RAM, however MSI is showing that the only thing reaching it's peak is the GPU usage which seems to be spiking up and down. Is this just a matter of my expectations for the GPU being too high, or could there actually be an issue?

I'd really appreciate some feedback and I'll be very grateful to anyone who can either quench my hopes of an endlessly meaty computer or give me some suggestions to solve this mystery.

I'll publish my system info in a comment below, mods feel free to merge the two if that's the preferred format on this site. You guys are always great, look forward to hearing your thoughts.

EDIT: My suspicion is that it's my RAM I'm currently using 2x2GB sticks, and they're very old, would this throttle games to this extent, and would it not show as RAM spikes on MSI?

 

[Rogerabbit]

OS Name Microsoft Windows 10 Pro
Version 10.0.10240 Build 10240
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name OLLY-PC
System Manufacturer Acer
System Model Aspire X3950
System Type x64-based PC
System SKU To Be Filled By O.E.M.
Processor Intel(R) Core(TM) i5 CPU 650 @ 3.20GHz, 3201 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. P01-A3, 5/5/2010
SMBIOS Version 2.6
Embedded Controller Version 255.255
BIOS Mode Legacy
BaseBoard Manufacturer Acer
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Desktop
Secure Boot State Unsupported
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.10240.16392"
User Name Olly-PC\Olly
Time Zone GMT Standard Time
Installed Physical Memory (RAM) 4.00 GB
Total Physical Memory 3.93 GB
Available Physical Memory 1.97 GB
Total Virtual Memory 7.93 GB
Available Virtual Memory 5.41 GB
Page File Space 4.00 GB
Page File C:\pagefile.sys
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware Yes
Hyper-V - Data Execution Protection Yes

 

[bumnut53]

16xAA is not a good idea unless you have multiple graphics cards. Knock it down to 2x or 4x and performance will increase massively.

You could do with more RAM but that would not increase your frame rate by much.

EDIT - your CPU is also quite old, does it hit 100% usage while gaming?

 

[Rogerabbit]

Yes, I'm afraid lowering the AA did fix performance issues, I will try using 2 cards when I upgrade my motherboard! Thanks for the advice.

 

[bumnut53]

Yes, I'm afraid lowering the AA did fix performance issues, I will try using 2 cards when I upgrade my motherboard! Thanks for the advice.

Save your money and leave it on 2x or 4x, anything over 4x is not really necessary.