I'm sorry, but a machine like this can handle it, but not be able to wing GTA.
I do not mean to be rude, but a 730 is not enough for games like GTA nowadays. If your looking to upgrade, try this:
PCPartPicker part list:
http://pcpartpicker.com/p/22Y7kL
Price breakdown by merchant: http://pcpartpicker.com/p/22Y7kL/by_merchant/
CPU: Intel Core i3-6100 3.7GHz Dual-Core Processor ($112.99 @ SuperBiiz)
Motherboard: Gigabyte GA-H110M-A Micro ATX LGA1151 Motherboard ($44.99 @ Micro Center)
Memory: Kingston HyperX Fury Black 8GB (1 x 8GB) DDR4-2133 Memory ($35.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($48.85 @ OutletPC)
Video Card: Sapphire Radeon R9 380 4GB NITRO Dual-X OC Video Card ($159.99 @ Newegg)
Case: Corsair 200R ATX Mid Tower Case ($49.99 @ Micro Center)
Power Supply: Corsair CX 500W 80+ Bronze Certified Semi-Modular ATX Power Supply ($37.98 @ Newegg)
Total: $490.78
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-03-28 20:36 EDT-0400
I machine also has a far better upgrade path in terms of performance, so you could upgrade up to an i7-6700K! The GPU is great for 1080p. Try buying this if you are on a budget.