How much wattage do I need?

[Zairker]

Hello everyone,
I'm planning on building my first PC soon enough and I'm starting to choose various parts.
PCPartPicker helped me for this, but I don't know what PSU & wattage should I get.
Here's the part list:

CPU : AMD Ryzen 7 1700
Motherboard : ASRock AB350 Pro4
RAM : Kingston FURY (2 * 4 GB)
HDD : Seagate Barracuda 250 GB (3.5 inches, 7.2K RPMs)
GPU : Sapphire Pulse Radeon RX 550 4GB
+ Gaming Mouse and Keyboard

Also, the case is going to have 3 120mm fans.

Thanks in advance!
(P.S.: Sorry for the potential bad english)

[Clint E]

Pick up a 450 watt PSU, gives you room to add hardware later down the road. Your current build list will just use half the power.

[Wichtelman]

https://www.youtube.com/watch?v=XDuTPhTCWeg

seasonic or corsair cxm are fine choices...

[Zairker]

Publicado originalmente por W8lifts:

Pick up a 450 watt PSU, gives you room to add hardware later down the road. Your current build list will just use half the power.

So even if I have full CPU and GPU load I won't use 450 watts, right?

[Clint E]

Publicado originalmente por Mightvolf:

Publicado originalmente por W8lifts:

Pick up a 450 watt PSU, gives you room to add hardware later down the road. Your current build list will just use half the power.

So even if I have full CPU and GPU load I won't use 450 watts, right?

No, you wont use 450 watts

[_I_]

r7 1700 = 65w
rx 550 = 50w
mobo, drives, fans > 100w
you could get by with a 250w psu

a quality 450w will be in its better efficiency range
a quality 600w psu can run any single cpu and gpu build

[Zairker]

Ok, I'm going for a 450w then.
Thank you guys so much!

[ericcui1]

Publicado originalmente por Mightvolf:

Publicado originalmente por W8lifts:

Pick up a 450 watt PSU, gives you room to add hardware later down the road. Your current build list will just use half the power.

So even if I have full CPU and GPU load I won't use 450 watts, right?

Not even close, probably somewhere near 250W

[Bad 💀 Motha]

Just get something that makes sense, like SeaSonic 520w, they are generally very good for their cheap pricing. This would help for better gpu down the road. If was me I'd seriously consider a better specs, those are terrible and cost as much as better parts would. Look at something like this instead...


Ryzen 2400g or 2600
MSI B450m motherboard
2x8GB ddr4 3000mhz
1TB or 2TB hdd, minimum
AMD RX 570 or better
Win10 64bit

[Zairker]

I'm thinking of a budget PC build here...

Actually Ryzen 2400 has 4 cores and 2600 has 6 cores... Ryzen 7 1700 has 8 cores at the same price as the 2600. Plus, I need to do video editing and recording game footage, and with my presets I need more CPU to encode with less file size.

With the motherboard I'm pretty much decided to get that one. I don't need extra things that I might not even use.

Isn't 8 GB of RAM enough? I mean, I have an old HP EliteBook 2570p with 4 GB of RAM (DDR3-1600) and I never have full RAM usage, and being a hardcore Linux user, all my data is on an external 1TB hard drive because of constant updates (I install the new version of Xubuntu at its release). I'm not a hardcore gamer either, I pretty much just play Minecraft or games of that nature like Terraria...

And could you please tell me why are my parts terrible? I kind of need advice for my first build.

[Wichtelman]

if 8gb ram or a rx 550 is enough just depends on what you want to do with your pc but for modern gaming/streaming or video editing it is at the lower end...

why 250 gb hdd if 120 gb ssd's just cost like 20$ to put your operating system on it?

i think for its price the ryzen 7 1700 is a nice buy and maye it will drop even more when ryzen 3rd gen arrives...

[Zairker]

Publicado originalmente por 123:

if 8gb ram or a rx 550 is enough just depends on what you want to do with your pc but for modern gaming/streaming or video editing it is at the lower end...

I'm not saying you're wrong, but-- the HP EliteBook 2570p has:

Intel Core i3-3110M 2.40 GHz (2 cores, 4 threads)
Intel HD Graphics 4000 (No VRAM, shares system RAM)
4 GB RAM DDR3-1600 MHz.

And I can record 30 minutes of Minecraft multiplayer on it at 720p and 30 FPS just fine. RAM's at 70-85%, CPU is between 50 and 95% usage. The only issue is temperature, being an old PC the fan doesn't work really well anymore. And I never tested livestreaming, but video quality's pretty good. I think those new specs are a great upgrade to my laptop.

[Talby]

If you are video editing and recording streams an SSD would be ideal - at least the 250gb Crucial mx500 they are $50

[Zairker]

Publicado originalmente por Talby:

If you are video editing and recording streams an SSD would be ideal - at least the 250gb Crucial mx500 they are $50

Even less than 250 GB will work lol.

Thanks for the advice everyone!

[ugafan]

rx 550 is rather weak. if you can afford it, go up to an rx 570 or 580.

[iamnid]

Here's a pretty helpful calculator for your original question: https://outervision.com/power-supply-calculator