Which PSU to take?

[dwl2234]

I have the following specifications,

Ryzen 7 2700x

RTX 2060 GPU

1 SSD

1 7.2K RPM HDD

3200MHZ RAM 32(8x4)

Hero 7 mobo

2 fans 

1 NZXT x62 kraken

some RGB components - GPU backplate n some RGB strips

 

roughly power Wattage recommended via MSI and outervision was 477W. So can I go with (80+ 550W Cooler Master MWE Gold Fully Modular) or any of its equivalent.

Or with 80+ 650W. 

 

I am unable to understand does 80% efficiency mean (0.8*650W=)520W or 650W (if the SMPS is named 650W).

Please explain.

 

Can I go with Bronze? is there an difference in reliability, except cost saving on power consumption when it comes to GOLD vs Bronze vs Silver.

Please explain.

 

 

[orbitalbuzzsaw]

Efficiency is not the issue, what we care about is PSU quality. Anything Tier B or above in the PSU Tier List is probably fine, though I'd air on the side of A and up to be safe. 550w is fine for that rig.

[dwl2234]

4 minutes ago, orbitalbuzzsaw said:

Efficiency is not the issue, what we care about is PSU quality. Anything Tier B or above in the PSU Tier List is probably fine, though I'd air on the side of A and up to be safe. 550w is fine for that rig.

what if i swap the 2700x with 2800x n 2060 with 2080ti or 5700xt( though its not out yet) any guesses? 

[dwl2234]

Just now, valdyrgramr said:

There is no 2800x, only an 1800x and 3800x, iirc.  Honestly, still 550w cx/cxm grey label is all you need.  While you won't draw that much power I think the 450w version cannot properly power higher end cards.  Not due to wattage reasons, but rail design, iirc.

my bad typo 3800X

[seon123]

15 minutes ago, dcakewalkgamer said:

what if i swap the 2700x with 2800x n 2060 with 2080ti or 5700xt( though its not out yet) any guesses? 

With a mainstream platform under a gaming load, a decent estimate is GPU TDP + 70W. With a 2080 Ti, though, I will suggest a high end 550W PSU. With the CXM and Pure Power 10/11, expect some coil whine. 

The efficiency rating says nothing about how good the PSU is. To decide on a PSU, look at reviews. If you want recommendations from us, you'll have to tell us where you're buying from, so we know what's available, and at what prices. 

A 90% efficient 650W PSU will output 650W DC (as you can read on the label, if you do 5 seconds of research), and will pull 650W/90%=720W from the wall AC. 

[dwl2234]

On 6/19/2019 at 10:32 PM, seon123 said:

With a mainstream platform under a gaming load, a decent estimate is GPU TDP + 70W. With a 2080 Ti, though, I will suggest a high end 550W PSU. With the CXM and Pure Power 10/11, expect some coil whine. 

The efficiency rating says nothing about how good the PSU is. To decide on a PSU, look at reviews. If you want recommendations from us, you'll have to tell us where you're buying from, so we know what's available, and at what prices. 

A 90% efficient 650W PSU will output 650W DC (as you can read on the label, if you do 5 seconds of research), and will pull 650W/90%=720W from the wall AC. 

I was dumb to think the other way round, I thought 550W PSU will only produce a output of 550W*0.8=440W DC, rather than doing it the other way. So a 550W 80% would draw a 550W/0.8=690ishW AC to produce 550W DC. 

to be specific I am thinking to buy a Cooler Master MWE GOLD 550W. Saw it in mid-range tier A list as in LTT suggested SMPTS. (here LTT SMPS TIER LIST )

 

[KEIN NEIN]

On 6/19/2019 at 12:02 PM, seon123 said:

With a mainstream platform under a gaming load, a decent estimate is GPU TDP + 70W. With a 2080 Ti, though, I will suggest a high end 550W PSU. With the CXM and Pure Power 10/11, expect some coil whine. 

The efficiency rating says nothing about how good the PSU is. To decide on a PSU, look at reviews. If you want recommendations from us, you'll have to tell us where you're buying from, so we know what's available, and at what prices. 

A 90% efficient 650W PSU will output 650W DC (as you can read on the label, if you do 5 seconds of research), and will pull 650W/90%=720W from the wall AC. 

So double-forward and ACRF PSUs are more prone coil whine issues or why did you tell him he has to expect coil whine?

[seon123]

5 hours ago, KEIN NEIN said:

So double-forward and ACRF PSUs are more prone coil whine issues

That's correct, as far as I know