What about this PSU

Solution
Corsair CX 600 is not COMPATIBLE with HASWELL CPU, beware. And that Rosewill is not a trusted unit either.

Unfortunately your chosen one also not compatible with HASWELL CPU. M12II Bronze: 650W, 750W, 850W are compatible but not the M12II 620 Bronze.

Radeon R9-280X - requires 30 Ampere on +12V rail and a 550W PSU minimum

So this will be your best bet, cheap, compatible and great :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair Enthusiast 650W 80+ Bronze Certified ATX Power Supply ($49.99 @ Newegg)
Total: $49.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-02 15:17 EST-0500)
Corsair CX 600 is not COMPATIBLE with HASWELL CPU, beware. And that Rosewill is not a trusted unit either.

Unfortunately your chosen one also not compatible with HASWELL CPU. M12II Bronze: 650W, 750W, 850W are compatible but not the M12II 620 Bronze.

Radeon R9-280X - requires 30 Ampere on +12V rail and a 550W PSU minimum

So this will be your best bet, cheap, compatible and great :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair Enthusiast 650W 80+ Bronze Certified ATX Power Supply ($49.99 @ Newegg)
Total: $49.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-02 15:17 EST-0500)
 
Solution