PCCG are getting in stock of the XFX TS 550w in a few weeks, best value power supply for the money in AUS, everything else in its price range is either overpriced or low quality.
In response to your original query, AMD CPUs are very poor performing, and have high temperatures and low input per core, which translates to poor performance.
Intel will beat AMD any day with similarly priced CPUs, although AMD has the really budget end covered somewhat, we're talking $300 USD builds.
No point investing in old technology, invest in the latest best value products imo, investing in old stuff is guaranteed to be a disappointing experience, especially later down the line when you realise your components can't be upgraded anymore on the same platform.
PCPartPicker part list:
http://au.pcpartpicker.com/list/8Lv3tJ
Price breakdown by merchant: http://au.pcpartpicker.com/list/8Lv3tJ/by_merchant/
CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($274.00 @ Centre Com)
Motherboard: Asus H110M-K Micro ATX LGA1151 Motherboard ($88.00 @ CPL Online)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2400 Memory ($105.00 @ CPL Online)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($68.00 @ CPL Online)
Video Card: Sapphire Radeon RX 480 4GB Video Card ($300.00)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($75.00 @ CPL Online)
Other: XFX TS 550w ($79.00)
Total: $989.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-08-05 20:23 AEST+1000