Downside to too much Watt? (RM850x vs TX750M V2 vs RM750)

[martward]

Hi all,

 

I'm in the market for a new powersupply.

 

Long story: The reasons I am going to buy a new one are that I'm upgrading to a new generation RTX card when they come available (not sure about 3080 or 3070 yet, and I'll probably wait for the models with more vram) and my current PSU has a known problem. I know that the chances that my current PSU (Seasonic Focus Gold Plus 650W) will actually cause problems are rather slim, but I've had some bad experiences with my previous GPU so I'm not willing to take any chances.

 

Short: I'm  trying to decide between the RM850x at €130 and the TX750M V2 at €99 or RM750 non-x at €100. I'm leaning towards the RM850x, but I was wondering whether there are any downsides to having a PSU with much more W than I would need (especially if I end up going with the 3070). The RM750x is €3-€4 cheaper than the RM850x so that's a pretty lousy value.

 

Any thoughts are welcome

[DHV0]

money/cost to buy it

[Nena Trinity]

wattage doesnt matter as much as how good quality it actually is.

[Moonzy]

6 minutes ago, martward said:

there are any downsides to having a PSU with much more W than I would need

not really, unless you go to the extremes then yes there will be issues (like powering 50W with 1500W psu, but not a big issue anyway)

but you get upside like the fan have to spin less and more delivery capacity for future upgrades.

 

either 750 or 850 is fine for 3070

[BlueChinchillaEatingDorito]

The only time Wattage really makes a (slightly) noticeable difference is efficiency. 

[SupaKomputa]

No downside beside the initial cost.

The power draw from the wall would be just what you're using.

[quan289]

Depending on when you'd purchased your Focus Gold, the issues should have been fix.

 

Spending more than what you need.

Efficiency at idle / low power draw may be worse.

Some people may sacrifice quality for a higher wattage unit (getting an EVGA 600 W1 instead of a Corsair CX450 when they are in the same price point).

Lack of research can cause someone end up getting a louder PSU (higher wattage unit may require more powerful fan which can have a negative impact on the units overall noise profile; e.g. EVGA Supernova 550 G3 -> 850 G3).

 

In your case, the first two points I've made is relevant to you.

[martward]

Just now, quan289 said:

Depending on when you'd purchased your Focus Gold, the issues should have been fix.

 

Spending more than what you need.

Efficiency at idle / low power draw may be worse.

Some people may sacrifice quality for a higher quality unit (getting an EVGA 600 W1 instead of a Corsair CX450 when they are in the same price point).

Lack of research can cause someone end up getting a louder PSU (higher wattage unit may require more powerful fan which can have a negative impact on the units overall noise profile; e.g. EVGA Supernova 550 G3 -> 850 G3).

 

In your case, the first two points I've made is relevant to you.

Yeah I got the 2018 model so unfortunately it's way before they fixed it. I think I'll just go for the RM850x. AFAIK the RMX series are the higher end and I'm kind of done buying new PSUs, I just want one that'll at least last me the warranty period without someone pointing out a major flaw in the design (I had the m12ii before the focus plus and it blew up my 950).