970 vs 390: At 1080p, it's a toss up and comes down to brand preference. At 1440p, the 390 pulls ahead. Additionally the 390 has so far shown to have improved performance with DX12 compared to the 970.
You are spending way to fucking much on RAM.
I don't like the G1 PSU. They're... eh, priced more than how good they are.
The Cooler you have is great, but also realistically overkill.
Gonna want a HDD for mass storage.
Tweaked build:
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Core i5-6600K 3.5GHz Quad-Core Processor | $233.99 @ SuperBiiz |
| CPU Cooler | CRYORIG H7 49.0 CFM CPU Cooler | $34.50 @ Newegg |
| Motherboard | Asus Z170-A ATX LGA1151 Motherboard | $134.99 @ Amazon |
| Memory | G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-2666 Memory | $60.30 @ Newegg |
| Storage | Sandisk Ultra II 480GB 2.5" Solid State Drive | $123.63 @ Amazon |
| Storage | Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive | $45.89 @ OutletPC |
| Video Card | MSI GeForce GTX 970 4GB Twin Frozr V Video Card | $324.99 @ B&H |
| Case | Fractal Design Define S w/Window ATX Mid Tower Case | $69.99 @ SuperBiiz |
| Power Supply | SeaSonic G 550W 80+ Gold Certified Semi-Modular ATX Power Supply | $69.99 @ SuperBiiz |
| Operating System | Microsoft Windows 10 Home OEM (64-bit) | $79.99 @ NCIX US |
| Monitor | Asus VC239H 60Hz 23.0" Monitor | $120.98 @ Newegg |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total | $1299.24 | |
| Generated by PCPartPicker 2016-05-01 00:19 EDT-0400 |