Would this build work.

[Dew2277]

GPU: Asus AMD R9 390 DirectCuII, 8GB GDDR5

CPU: Intel Skylake i7-6700K, LGA1151, 4GHz, 8MB, Boxed

Memory: Kingston 8GB(2x4GB) HyperX Fury DDR4 2400MHz, CL15

Mobo: Asus Z170-A, LGA1151, Intel Z170, DDR4, ATX

SSD: Samsung 250GB 850 EVO SSD -levy, 2.5", SATA III, 540/520 MB/s

Case: Phanteks Enthoo Pro

PSU: Corsair 650W.

 

Would this build work with the 650w PSU or does it need a bigger one?

Is there something I could tweak for better performance (in the same price range as the original part)?

[Steinway]

Looks good to me, power supply would be fine.

[marciiii]

3 minutes ago, Dew2277 said:

GPU: Asus AMD R9 390 DirectCuII, 8GB GDDR5

CPU: Intel Skylake i7-6700K, LGA1151, 4GHz, 8MB, Boxed

Memory: Kingston 8GB(2x4GB) HyperX Fury DDR4 2400MHz, CL15

Mobo: Asus Z170-A, LGA1151, Intel Z170, DDR4, ATX

SSD: Samsung 250GB 850 EVO SSD -levy, 2.5", SATA III, 540/520 MB/s

Case: Phanteks Enthoo Pro

PSU: Corsair 650W.

 

Would this build work with the 650w PSU or does it need a bigger one?

Is there something I could tweak for better performance (in the same price range as the original part)?

I would get an i5-6600k because for gaming you don´t need the hyperthreading

[marciiii]

8 minutes ago, Dew2277 said:

GPU: Asus AMD R9 390 DirectCuII, 8GB GDDR5

CPU: Intel Skylake i7-6700K, LGA1151, 4GHz, 8MB, Boxed

Memory: Kingston 8GB(2x4GB) HyperX Fury DDR4 2400MHz, CL15

Mobo: Asus Z170-A, LGA1151, Intel Z170, DDR4, ATX

SSD: Samsung 250GB 850 EVO SSD -levy, 2.5", SATA III, 540/520 MB/s

Case: Phanteks Enthoo Pro

PSU: Corsair 650W.

 

Would this build work with the 650w PSU or does it need a bigger one?

Is there something I could tweak for better performance (in the same price range as the original part)?

I would get this because of better price/performance:

 

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor  ($244.99 @ Amazon) 
CPU Cooler: be quiet! Dark Rock 3 67.8 CFM Fluid Dynamic Bearing CPU Cooler  ($64.90 @ Newegg) 
Motherboard: Gigabyte GA-Z170XP-SLI ATX LGA1151 Motherboard  ($113.75 @ OutletPC) 
Memory: Kingston HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory  ($64.99 @ Amazon) 
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive  ($86.75 @ OutletPC) 
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive  ($49.89 @ OutletPC) 
Video Card: Asus Radeon R9 390 8GB Video Card  ($337.99 @ SuperBiiz) 
Case: Phanteks Enthoo Pro ATX Full Tower Case  ($89.99 @ Newegg) 
Power Supply: Corsair RMx 650W 80+ Gold Certified Fully-Modular ATX Power Supply  ($89.99 @ Newegg) 
Total: $1143.24
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-03-08 13:46 EST-0500

[Spork750]

Yes the power supply would work, but under load you want something higher rated just to make sure you don't have any issues in the long run. I'd suggest a 750W gold rating from corsair. Decent price and you wont need to replace it in the long run, even if you feel like adding upgrades like a second graphics card. Also you could save a little money on the CPU, the 6600k has nearly the same performance if not the same numbers. Unless you plan on overclocking in which case the high end might be the better choice anyway. 

[Dew2277]

Is there any reason to wait for the r9 400 series cards?