What should be upgraged?

[OlFosterlO]

I am looking to upgrade my gaming PC by improving the components inside. However, i do not have the most extensive knowledge when it comes to the best compatible PC parts that i should use and how much those parts will influence my system. So, i have come to the knowledgeable community here at tom's HARDWARE to find out what i should do.

System Specs;
Operating System - Windows 7 Home Premium 64 Bit
Motherboard - Gigabyte GA-Z77-HD3
CPU - Intel i7-3770 @ 3.40 GHz
Memory - 8GB DDR3 Ram
Graphics Card - NVIDEA GeForce GTX 650
Hard Drive - 1TB Disk Drive ST1000DM003-1CH162 ATA

I play games such as Battlefield 4, ArmA 2, ArmA 3, DayZ etc
What would be the best component to replace/upgrade and what should i upgrade/replace the component with? Please leave suggestions and please ensure that suggestions are compatible with the current system.

Thank You

 

[Best Answer]

Upgrade your GPU to something like a 770 or the r9 280. The r9 280 is better for Bf4 and is also much cheaper. Make sure that your PSU can handle your gpu if not 600W will be enought.