How many watts does my oc need?

[lucaskrissalis]

Hello everyone and happy new year!
I am building the following pc and i would like to know what psu should i buy: a 550 ,a 600 or a 650 watt psu ? I was thinking about the corsair RMx series 550x ,but i would like to have your opinion as well
Thanks in advance

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[jankerson]

An RMX 550W is an excellent choice.

 

[Zerk2012]

You should get a Z270 motherboard with that processor and the board you picked is not worth that price.
I would look at the 6 core i5 8600K and buy some overkill on the PSU to allow for future upgrades.
You also have a slow 5400 RPM hard drive i would loose that.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-8600K 3.6GHz 6-Core Processor ($268.95 @ B&H)
CPU Cooler: CRYORIG - H7 49.0 CFM CPU Cooler ($29.89 @ OutletPC)
Motherboard: ASRock - Z370 Extreme4 ATX LGA1151 Motherboard ($159.39 @ OutletPC)
Memory: Corsair - Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory ($204.99 @ Amazon)
Storage: Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive ($89.99 @ B&H)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($46.77 @ OutletPC)
Video Card: Gigabyte - GeForce GTX 1060 6GB 6GB WINDFORCE OC 6G Video Card ($354.02 @ Newegg Marketplace)
Case: NZXT - S340 (Black) ATX Mid Tower Case ($66.99 @ SuperBiiz)
Power Supply: SeaSonic - FOCUS Plus Gold 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($83.99 @ SuperBiiz)
Total: $1304.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-01-02 13:32 EST-0500

 

[lucaskrissalis]

You should get a Z270 motherboard with that processor and the board you picked is not worth that price.
I would look at the 6 core i5 8600K and buy some overkill on the PSU to allow for future upgrades.
You also have a slow 5400 RPM hard drive i would loose that.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-8600K 3.6GHz 6-Core Processor ($268.95 @ B&H)
CPU Cooler: CRYORIG - H7 49.0 CFM CPU Cooler ($29.89 @ OutletPC)
Motherboard: ASRock - Z370 Extreme4 ATX LGA1151 Motherboard ($159.39 @ OutletPC)
Memory: Corsair - Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory ($204.99 @ Amazon)
Storage: Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive ($89.99 @ B&H)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($46.77 @ OutletPC)
Video Card: Gigabyte - GeForce GTX 1060 6GB 6GB WINDFORCE OC 6G Video Card ($354.02 @ Newegg Marketplace)
Case: NZXT - S340 (Black) ATX Mid Tower Case ($66.99 @ SuperBiiz)
Power Supply: SeaSonic - FOCUS Plus Gold 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($83.99 @ SuperBiiz)
Total: $1304.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-01-02 13:32 EST-0500

Wow,thank you for the time you've spent for that answer!
I have already bought the motherboard because in my country (greece) it's below half that price (idk why it's so expensive in part picker lol ) and i have also updated its bios so that it can support kabylake cpus. Plus i got the mobo even cheaper ,because i found it in a stock house for 80 euros (good deal imo ) . Moving on the storage , thank you for it pointing out , i just replaced it with the hard drive you suggested me. And about the psu, do i really need that much wattage? Isn't it considered an overkill?
Again ,thanks for your answer!

 

[lucaskrissalis]

An RMX 550W is an excellent choice.

Thanks, i'll stick to that unless something better comes up