How long will this last gaming

godfish

Honorable
Nov 5, 2013
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PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($197.99 @ NCIX US)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($99.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($52.99 @ Newegg)
Video Card: Gigabyte Radeon R9 270X 2GB Video Card ($199.99 @ Amazon)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($49.99 @ Microcenter)
Power Supply: Rosewill Green 630W 80+ Certified ATX Power Supply ($59.99 @ Newegg)
Total: $660.94
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-11-25 13:28 EST-0500)
How long will this last me, I already have optical and hard drive
 

godfish

Honorable
Nov 5, 2013
248
0
10,760


Would changing the psu be necessary?