Do power supplies really matter that much?

[Raptor Games]

If it's from a reputable company, its rated 80+ gold, and enough headroom for the parts, does the psu really matter past that?

I'm asking because I'm debating between these two:

EVGA SuperNOVA 120-GP-0650-X1, 650 G+: $59.99

Thermaltake Toughpower GF1 650W: $65.99

 

Parts list so far: https://pcpartpicker.com/list/7kbYxc

I plan to add a gpu down the line.

[TetraSky]

Yes. Because even reputable brands make(rebrand) craptastic PSUs and 80+ gold doesn't tell the whole story.

Case in point, we have a PSU tier list just for that. While it doesn't have every PSUs ever, it still better than blindly buying any random PSU just because of branding.

 

 

Not sure about the EVGA one, but the Thermaltake is gold A tier. Meaning it's one of the best you could get.

[Raptor Games]

4 minutes ago, TetraSky said:

we have a PSU tier list just for that.

 

Would the Thermaltake Toughpower GF1 650W be a good choice then since it's tier a?

[Daethz]

Some of them are having issues with the 3000 series gpus

If you get a 3070rtx or higher I suggest finding one on the top of tiers on the forum sticky

[Daethz]

39 minutes ago, Raptor Games said:

Would the Thermaltake Toughpower GF1 650W be a good choice then since it's tier a?

For what you have posted so far in your part list yeah, but depending if you get a gpu you may want more than 650w

[Raptor Games]

Just now, Daethz said:

if you get a gpu you may want more than 650w

I was recommended a 650w for a 3070 

[Daethz]

3 minutes ago, Raptor Games said:

I was recommended a 650w for a 3070 

I suppose 650w should be enough. 

I'd also look at the corsair RMX (2018) psu's and compare prices, I just trust corsair more personally.

[Chris Pratt]

3 hours ago, Raptor Games said:

I was recommended a 650w for a 3070 

650W is the bare minimum when paired with a relative low powered CPU like a 3600. If you're getting something beefier, you should go higher. Personally, I'd go 750W, just to be safe, and have a little headroom for upgrades later.

[SavageNeo]

rtx 3070 uses around 250w of power and r5 3600 under 100 so together if 100% stressed (not realistic) they will use around 350w.

 

add fans, storage, ram and motherboard to mix and your system will consume liuttle over 400w at full load. it will be lower when gaming.

 

@Mark Kainedid run rtx 3070 and r5 3600 with not the best 500w psu just fine. 

 

 

so you want atlerast a good 500w psu.

 

[Guest]

11 hours ago, SavageNeo said:

rtx 3070 uses around 250w of power

Not when you take into consideration the 2.5x power spikes that occur for 200mS.

[zoidzoid]

6 hours ago, jonnyGURU said:

Not when you take into consideration the 2.5x power spikes that occur for 200mS.

I am curious since 3060 ti is supposed to have similar power spikes, but some models only come with 1 x 8pin, 150+75w , can it still spike over 225w?

[Guest]

42 minutes ago, zoidzoid said:

I am curious since 3060 ti is supposed to have similar power spikes, but some models only come with 1 x 8pin, 150+75w , can it still spike over 225w?

Yup.  But the power delivery via cable isn't impacted since the power spikes are so fast.