Is Seasonic 550W GOLD PSU enough for Sapphire Nitro+ RX 5700 XT?

[Fury4N]

So I just bought the Sapphire Nitro+ RX 5700 XT to replace my dead GPU. Before i bought my new GPU, I have read posts and reviews that 550W is fine/enough for the 5700 XT(which i think they're referring to the reference model). The wattage calculators also says it's fine. But what's stated on the box of my GPU is different story, it requires 600W minimum and in which it concerns me a lot. Currently i have the following PC specs:

CPU: i5-7400

MOBO: MSI B250-M Mortar

CPU Cooler: Cryorig H7 Quad Lumi

GPU: Sapphire Nitro+ RX 5700 XT

RAM: G.Skill Trident Z Royal (2x8GB 3200mhz)

PSU: Seasonic Focus Gold 550W

SSD: Samsung 860 Evo 256GB

HDD: 1TB Seagate Barracuda

Case: NZXT S340

Case fans: 1x Thermaltake Riing Fan 120mm(static red)

                   1x PCCooler RGB 120mm

                   1x NZXT case stock fan 120mm

Also since my CPU is a bottleneck on my GPU, I'm planning to upgrade to Ryzen 5 3600 in a near future.
Is my PC fine? Or should I get a new PSU with higher wattage ASAP? Thanks a lot!

[Spotty]

3 minutes ago, Fury4N said:

Is my PC fine? Or should I get a new PSU with higher wattage ASAP? Thanks a lot!

It's fine.
System with i5 7400 (or Ryzen 3600) + RX 5700 XT will only need about 350W or so max. 550W is more than enough.

You can ignore what the GPU manufacturers say on the box. How would the GPU manufcaturer know what CPU you're using, how many HDDs you have, how many case fans you have... ? They have no way of giving you an estimation for how much power you will require since they only know the power consumption of ONE part of your system. The rest is unknown to them.
I wish they would stop putting bullshit on the box and instead just write how much the card itself uses.

[191x7]

The GPU manufacturers give such numbers on the box because people tend to use low end PSU-s.

[ckinfos]

it is fine