Can the PSU handle my build?

yes that be fine.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($229.99 @ NCIX US)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: MSI Z97 PC MATE ATX LGA1150 Motherboard ($69.99 @ Newegg)
Memory: Kingston HyperX 8GB (2 x 4GB) DDR3-1600 Memory ($79.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($54.98 @ OutletPC)
Video Card: Gigabyte Radeon R9 290 4GB WINDFORCE Video Card ($379.99 @ NCIX US)
Case: NZXT Source 220 ATX Mid Tower Case ($49.99 @ Amazon)
Power Supply: XFX 850W 80+ Bronze Certified ATX Power Supply ($73.99 @ NCIX US)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($16.98 @ OutletPC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($84.98 @ OutletPC)
Total: $1070.86
Prices include shipping, taxes, and discounts when available

id go with a stronger one tho for upgrades and crossfire 290s

 

BleedingEdgeTek

Reputable
May 29, 2014
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5,360
I wouldn't Crossfire a pair of 290s on 850w, that's pushing it close. The 290 and 290x can draw a lot of power at peak loads. 1000w is the general recommendation for CPU/GPU overclocking on a pair of 290s.

Further to the 290 Crossfire recommendation, you'll want a much better board for that. The PC Mate only has 1 x16 PCIe 3.0 slot, the other is a 2.0 running at x4, which will hinder the 290 pretty severely.
 

Neocyte

Distinguished
Dec 21, 2012
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18,530


I, however, have absolutely no intention using two 290s. That being said, do you still think the 550w PSU would be sufficient?