MrMcFarts

PCPartPicker part list: https://pcpartpicker.com/list/w7DMKZ
Price breakdown by merchant: https://pcpartpicker.com/list/w7DMKZ/by_merchant/
CPU: Intel Core i7-7700 3.6GHz Quad-Core Processor  ($294.99 @ SuperBiiz) 
Motherboard: Gigabyte GA-B250M-DS3H Micro ATX LGA1151 Motherboard  ($68.39 @ OutletPC) 
Memory: G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-2666 Memory  ($99.97 @ Jet) 
Storage: ADATA Ultimate SU800 128GB 2.5" Solid State Drive  ($54.88 @ OutletPC) 
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive  ($49.33 @ OutletPC) 
Video Card: EVGA GeForce GTX 1070 8GB SC GAMING ACX 3.0 Black Edition Video Card  ($379.99 @ Jet) 
Case: Corsair Carbide Series 88R MicroATX Mid Tower Case  ($49.99 @ Corsair) 
Power Supply: SeaSonic 520W 80+ Bronze Certified Fully-Modular ATX Power Supply  ($64.99 @ SuperBiiz) 
Operating System: Microsoft Windows 10 Home Full - USB 32/64-bit  ($106.89 @ OutletPC) 
Monitor: LG 25UM58-P 25.0" 2560x1080 75Hz Monitor  ($157.00 @ Amazon) 
Keyboard: Cooler Master Lite L Wired Gaming Keyboard w/Optical Mouse  ($39.99 @ Amazon) 
Headphones: Logitech G430 7.1 Channel  Headset  ($39.99 @ Jet) 
Total: $1406.40
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-03-30 10:51 EDT-0400
 
i am not sure how many games support ultrawide so beware of that

Workstation cards are for when you need something really reliable and cannot afford crashes, like for example Pixar is rendering toy story 4 they can't afford it to crash midway through so they would use a workstation card.
 
Workstation cards are made to be reliable and stable the sacrifice a bit of power for reliability.
 
If you just use these things for fun or as a small hobby like YouTube you probably don't need one, and you'd get better price to performance with a regular card.
 
 
(note I have no knowledge of this, this is just what I read somewhere else I may be wrong)
 
 

Here is a comparison of 7700k and ryzen for Lightroom 
 
https://www.pugetsystems.com/labs/articles/Adobe-Lightroom-CC-2015-8-AMD-Ryzen-7-1700X-1800X-Performance-910/

What do you use your computer for

He isn't gonna be able to run those with Radeon 5450