Help me pick a good PSU and CPU Cooler

Hmm, you need to start over it looks like.

You don't need an i7, that will add $100 to your GPU budget.

Your motherboard selection doesn't allow overclocking, so no need to buy a K series chip. Either get a straight i5-6500 or the 6600k and match that to a Z170 board, then a CPU heatsink makes sense. Cryorig H7 is popular, Hyper Evo 212 is usually a tad cheaper.

You should buy memory in matched pairs to enable dual channel memory.

Doesn't effect gaming performance, but it is hard to not include an SSD in any contemporary build.

 
Almost forgot the ram...

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($199.99 @ SuperBiiz)
Motherboard: Gigabyte GA-H170-GAMING 3 ATX LGA1151 Motherboard ($104.89 @ OutletPC)
Memory: Kingston HyperX Fury Black 8GB (2 x 4GB) DDR4-2133 Memory ($39.89 @ OutletPC)
Storage: PNY CS1311 240GB 2.5" Solid State Drive ($63.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Video Card: PowerColor Radeon RX 480 4GB Video Card ($200.00)
Power Supply: SeaSonic 520W 80+ Bronze Certified Fully-Modular ATX Power Supply ($65.99 @ SuperBiiz)
Total: $722.24
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-25 15:03 EDT-0400
 
PCPartPicker part list / Price breakdown by merchant

CPU Cooler: CRYORIG H5 Universal 65.0 CFM CPU Cooler ($46.88 @ OutletPC)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($59.99 @ B&H)
Total: $106.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-25 15:04 EDT-0400

If you dont mind a mail in rebate
PCPartPicker part list / Price breakdown by merchant

CPU Cooler: CRYORIG H5 Universal 65.0 CFM CPU Cooler ($46.88 @ OutletPC)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($58.99 @ NCIX US)
Total: $105.87
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-25 15:05 EDT-0400
 


Erm, its $121 over my budget, my budget is about 600 dollars. 🙁
 


Is overclocking really that important ? and is it not dangerous ?
 
Well you can drop the SSD, but I think you are going to have to re-consider a lot of this to get in under under budget.

And there is no case, OS, or any peripherals, not much left to strip out. Do you already have a storage drive you might be able to use temporarily?
 
A non-modular power supply, no SSD, and a slightly cheaper motherboard. Not much left, but to drop to a lesser CPU, which I think is a poor return on investment. If you didn't notice I added the ideal price for the RX480, though I think they are averaging closer to $250 right now.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($199.99 @ SuperBiiz)
Motherboard: ASRock H170A-X1 ATX LGA1151 Motherboard ($78.99 @ SuperBiiz)
Memory: Kingston HyperX Fury Black 8GB (2 x 4GB) DDR4-2133 Memory ($39.89 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Video Card: PowerColor Radeon RX 480 4GB Video Card ($200.00)
Power Supply: XFX TS 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ NCIX US)
Total: $626.35
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-25 15:27 EDT-0400
 


I have OS, monitor all the stuff.., but no i don't have storage drive.
 


Is there big difference between 4ghz and 3.2 ghz CPUS, also about motherboard what difference between cheaper and more expensive one ?

 
Im guessing you already have a case.
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor ($199.99 @ SuperBiiz)
Motherboard: Gigabyte GA-B150M-DS3H Micro ATX LGA1151 Motherboard ($65.38 @ Newegg)
Memory: G.Skill Ripjaws 4 series 8GB (2 x 4GB) DDR4-2400 Memory ($34.98 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Video Card: PowerColor Radeon RX 480 8GB Video Card ($243.98 @ Newegg)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($59.99 @ B&H)
Total: $651.81
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-25 15:34 EDT-0400

Its still $50 overbudget but should get a little cheaper if you get a 4Gb 480 when they are in stock.
 
Solution
Chipsets and motherboards are feature platforms. They vary in price based on things you might need. 4-10 USB ports, 2-10 SATA connections (RAID), SLI, Crossfire, PCIe expansion slots, memory channels, etc. With Intel, only the Z and X class boards get you overclocking.

Frequency is almost a direct comparison of relative performance in a given CPU architecture and generation.

i5-6500 is a quad core running at 3.2-3.6Ghz.
i7-6700k is a quad core with hyperthreading running at 4.0-4.2Ghz (4 physical cores, 8 logical) plus a little extra cache memory.

Basically you are looking at a 10-15% increase in gaming performance going from the i5 to the i7 at the cost of over $100. For other tasks that involve more parallel processing, the i7 is significantly faster. Also helps get you that last bit of performance out of a high end GPU.

Since you are looking at a more mid-range (though still excellent) GPU, the i5 is more fitting to your needs.
 


Why 700 ? 467 + 200 = $667, which is 606 euros
Also build is stable i mean no issues will be with it ?
 


Oh yea, but about build is it safe ?
 


Yeah, its the build I posted with a case.