Which one do I choose

[AYDANN6ix9ine]

I'm on a tight budget for a PSU to power my OC'ed Ryzen 5 2600x (4.2ghz at 1.39v) and my OC'ed GTX 970 (1350 Core Clock with 2003 Memory Clock). Is a Corsair CX550M 80+ Bronze Semi-Modular Unit be good or is it worth to spend $10 more for a 650W unit to be safe?

[PopsicleHustler]

550 is enough.

[seon123]

A better 450W would be better. 

The Formula 450W is available at a good price in the US. 

[AYDANN6ix9ine]

Could you give me a basic estimate of the max wattage my system would draw?
 

 

[AYDANN6ix9ine]

Specs:

 

AMD Ryzen 5 2600X (OC'ed to 4.2ghz at 1.39v)

EVGA GeForce GTX 970 Superclocked ACX 2.0 (1350 base clock- 2003 memory clock)
ASUS Prime B450M-A/CSM mATX

Arctic Freezer 33 Esports Edition Dual-Fan Cooler

16gb DDR4 3000 (Maybe OC to 3200mhz)
ADATA SU800 1TB 3D NAND Solid State Drive

4 Orange LED 3-Pin Case Fans

DIYPC-F2-O mATX MiniTower

[seon123]

5 minutes ago, AYDANN6ix9ine said:

Could you give me a basic estimate of the max wattage my system would draw?
 

 

~250-300W. Under a gaming load, expect it to be closer to ~220W. 

[AYDANN6ix9ine]

SO those calculators are far from accurate? Would it be unnecessary to spend an more money on 650W.

[OrionFOTL]

Yes and yes.

[AYDANN6ix9ine]

I'm sorry but are you sure. Do you have first hand experience with the accuracy of calculators?

[OrionFOTL]

Of course. It's not like real world power consumption tests don't exist. When you try to find the performance of a graphics card, you search for tests and benchmarks, not "FPS calculators". So when trying to find your power consumption, why do you search for power calculators rather than power consumption tests?

 

Take this review of GTX1050: https://pclab.pl/art78428-23.html

The entire setup consumes 115W under load. (128W * 90%, because their PSU is 90% efficient).

 

Now plug every component in their setup into a shitty PSU calculator: https://screenshotscdn.firefoxusercontent.com/images/d50811c9-652e-4d9d-a3a4-d5fe42a2d43c.png

It calculated load wattage at 322W. Almost three times more than the actual, tested value.

[AYDANN6ix9ine]

Okay. Thanks. So would a 550W PSU from Corsair suffice for the next couple of years? Sorry. It is my first build

[OrionFOTL]

Sure thing, after all it will only be loaded in half, and that's only in toughest situations in games.