Looking for an upgrade of good value, any ideas?

Hey, I just started working recently, and I'mlooking to spend about 200 on upgrading my PC.
I'm not looking for some crazy 1080ti shit, just a small enough upgrade so I can bump up my graphics on GTA V and maybe render things a lot faster.
I just upgraded my processor from an FX-4300 to an FX-8300, since I had 90 lying around at the time. So I don'tfeel like changing my CPU.)
(Just a note. I will not be changing platform. I use AMD because I need the cores for rendering. Please keep it relevant. I'll report any replies about how I should use Intelinstead as "off topic")

CPU - AMD FX-8300 (8 Cores at 3.8ghz overclock)
CPU Cooler - Cooler Master Hyper 212 Evo (With stock fan)
GPU - GTX 750 ti Superclocked (2GB GDDR5)
Motherboard - ASRock 980DE3/U3S3 ATX AM3+ (Bad Motherboard)
RAM - Kingston HyperX Fury Blue 8GB DDR3-1868 (2 x 4gb)
Power - EVGA 500W 80+ Certified ATX Power Supply
Case - Thermaltake Commander MS-I ID ATX Mid Tower Case
Storage - 500GB Laptop HDD + 300GB HDD + 1TB HDD Games Drive
Fans - 1 Stock Case fan - 2x Corsair AF120 Blue Led Fans

Total Price + Shipping:
530 (On time of purchase. Prices have changed since)

Many thanks
-Ya boi

If you are on a budget I would recommend a 4gb 1050 ti. I had one for a while before upgrading to my 1060 6gb and it was an amazing card for the money spent. I highly recommend it to somebody gaming on a 1080p monitor. I gave it to one of my best friends when I built him a gaming pc out of old/spare parts and he's able to play pubg on ultra settings.