upgrade 550 watt power supply to 850 watt powersupply?

[sharknado34]

So here is my build (approximately) There are a couple more hard drives in there. Anyways How many watt power supply will I need if I intend to go balls to the walls overclocking... I have a 550 Watt power supply atm, but I don't think that will be good enough for my new build... Or am I mistaken?

PCPartPicker Part List

Type	Item	Price
CPU	AMD - Ryzen 9 3900X 3.8 GHz 12-Core Processor	$499.00 @ B&H
CPU Cooler	Corsair - H100i PRO 75 CFM Liquid CPU Cooler	$119.99 @ Amazon
Motherboard	ASRock - X570 Taichi ATX AM4 Motherboard	$289.99 @ Newegg
Memory	G.Skill - Ripjaws V Series 32 GB (2 x 16 GB) DDR4-3200 Memory	$239.99 @ Newegg
Storage	Samsung - 970 Evo 500 GB M.2-2280 Solid State Drive	$89.99 @ Amazon
Video Card	Asus - GeForce GTX 1070 8 GB STRIX Video Card
Case	NZXT - H440 ATX Mid Tower Case
Power Supply	EVGA - SuperNOVA G1+ 850 W 80+ Gold Certified Fully Modular ATX Power Supply	$109.89 @ OutletPC
	Prices include shipping, taxes, rebates, and discounts
	Total (before mail-in rebates)	$1378.85
	Mail-in rebates	-$30.00
	Total	$1348.85
	Generated by PCPartPicker 2019-07-15 20:10 EDT-0400

 

[BubblyCharizard]

PCPP shows less than 400W estimated....you should be OK with 550, might consider 650, but anything more is just overkill

[TheKDub]

PCPartPicker says it'll use approx 380W. If you're going to OC your 3900X and 1070, I'd be sure to get at least a 650W PSU, if not higher.

[sharknado34]

Just now, TheKDub said:

PCPartPicker says it'll use approx 380W. If you're going to OC your 3900X and 1070, I'd be sure to get at least a 650W PSU, if not higher.

The thing is that I will probably end up getting a pretty crazy graphics card like the rtx 3080 ti or something in the future... So I was thinking if I upgrade to a much beefier graphics card then I probably would want a very high wattage psu.

 

[TheKDub]

3 minutes ago, sharknado34 said:

The thing is that I will probably end up getting a pretty crazy graphics card like the rtx 3080 ti or something in the future... So I was thinking if I upgrade to a much beefier graphics card then I probably would want a very high wattage psu.

 

Then yeah, I'd definitely go for 650W+. 850W wouldn't hurt.

I've got an EVGA G3 850W in my PC with only an overclocked i7 8700K, a GTX 970, a couple hard drives, and an SSD. Sure I'm not pushing it to its limits, but damn has it been quiet, and there's plenty of room for upgrades in the future.

[Spotty]

1 hour ago, sharknado34 said:

I have a 550 Watt power supply atm,

550w is more than enough for a Ryzen CPU and GTX 1070. You didn't mention which 550w PSU you have though.

 

1 hour ago, sharknado34 said:

The thing is that I will probably end up getting a pretty crazy graphics card like the rtx 3080 ti or something in the future...

When/if you buy the RTX 3080ti you can look at whether or not a new power supply is needed. We can't tell you the power requirements of something that doesn't exist that you might consider buying sometime in the future.