What is the cheapest gaming computer for 900$?

OJ Simpson

Honorable
Nov 12, 2013
5
0
10,510
I need a monitor,keyboard,mouse,mouse pad,operating system,and headset.Are speakers required for a PC?Update:I have no desktop to upgrade.Update:pepitoTV can you please include a monitor,mouse,keyboard,mouse pad,and headset?
 

PepitoTV

Honorable
Oct 10, 2013
847
0
11,360
Consider something like this:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-8320 3.5GHz 8-Core Processor ($129.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler ($19.98 @ OutletPC)
Motherboard: Asus M5A97 R2.0 ATX AM3+ Motherboard ($92.99 @ NCIX US)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($49.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Video Card: Asus Radeon HD 7870 GHz Edition 2GB Video Card ($169.99 @ Newegg)
Case: Corsair 200R ATX Mid Tower Case ($39.99 @ NCIX US)
Power Supply: Corsair CX 500W 80+ Bronze Certified Semi-Modular ATX Power Supply ($44.99 @ Newegg)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($82.98 @ OutletPC)
Total: $705.87
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-08 12:23 EST-0500)

I didn't include monitor nor peripherals because I think those are of personal preference so I left $200 of your budget to fill them. You should be able to get a decent $120 monitor and everything else for $80.