Upgrade PC + One to sell?

platinums

Current pc is 5 years old. Time for an upgrade.

http://www.userbenchmark.com/UserRun/4400136

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-3570K 3.4GHz Quad-Core Processor ($275.00 @ Amazon)
CPU Cooler: Cooler Master - Seidon 120V VER.2 76.0 CFM Liquid CPU Cooler
Motherboard: ASRock - Z77 Pro4 ATX LGA1155 Motherboard - (Main PCIe16x Port wont detect gfx cards anymore, using PCIe4x port)
Storage: Samsung - 850 Pro Series 256GB 2.5" Solid State Drive ($119.99 @ B&H)
Storage: Toshiba - X300 4TB 3.5" 7200RPM Internal Hard Drive ($114.99 @ Amazon)
Video Card: Palit - GeForce GTX 1070 8GB Super JetStream Video Card
Case: Fractal Design - Define R5 (Black) ATX Mid Tower Case ($89.99 @ NCIX US)
Power Supply: Super Flower - Golden Green HX 550W 80+ Gold Certified ATX Power Supply
2x G.SKill Ripjaws 4gb DDR3 https://www.gskill.com/en/product/f3-14900cl9d-8gbsr
1x 4gb DDR3 Generic

I see a lot of new cpu's out and I was always an AMD fanboy, AMD 486 DX, AMD K7 Athlon when they really were trouncing Intel on price. Has that day returned..
I went for the 3570k as it was the best enthusiast/value cpu at the time and "k" allowed for lengthening its life.

Can anyone with more recent knowledge thatn myself reccommend a new cpu / mobo / ram.
If theres parts left i will buy a cheap case and sell off the remaining parts possibly, is it worth it?

K.O.Kiki

Don't think there's really anything wrong with that build; I'd sell the RAM & get 2x 8Gb DDR3-2133 or faster.

What games are you seeing slowdown in?
What's your monitor resolution/Hz?

TerrorFirmer

Just replace the i5 with a i7-3770K and you're set for another few years no problem. Minimal hassle.

However if you're really itching for an upgrade you can get the Ryzen 1600, a B350 board and 8GB of high speed DDR4....but it won't offer any actual performance increase over an i7-3770k in games right now, but is a newer platform with better feature set.

Especially if you overclocked the 3770K, it's still a very good gaming CPU, but that's also true at stock speeds.

But equally if you OC that 3570K as is the point of a K cpu, at 4.5Ghz or so I can't imagine it being a perceivable bottleneck in anything unless you have a 120/144hz monitor.

I don't think Ryzen is the upgrade answer to unlocked K models on the 1155 platform when a) hefty overclocks bring them in line with modern CPU's and b) i7-3770k's are available so cheaply and still excel in games.

platinums

i have a 4k 49" tv, Witcher. Arma 3.
Both pretty smooth, but probably could be smoother.

Motherboard stopped detecting 1070 on the main PCIe port so worried its going to die soon.
CPU OC'd to 4.2ghz boost currently with the liquid cooler.

is PCIe x16 a tremendous amount slower that PCIe 4x? Thats the slot its in now.
Current ram could also be overclocked? 2x G.SKill Ripjaws 4gb DDR3 https://www.gskill.com/en/product/f3-14900cl9d-8gbsr