Need help with Watt calculation

[Redliquid]

Hello!

I have a 500w modular psu from bequiet! and i want to buy a new gpu going from a GTX 1060 to a MSI Radeon RX 5700XT Evoke OC

• I'm running 3 fans

• Ryzen 5 1600X - 95 watts According to AMD's website

• x2 8gb ram sticks around 2667MHz hz i think.

• 1 ssd, 1hdd

• DAC & Mic

• Mouse & Keyboard

• 2 Monitors

 

My worry is the new gpu pulls up to 225 W according to the site im bying it from

But the recommended watt they suggest the computer to have is 750W.
Will i be alright?

I also plan on adding a 1TB M.2 SSD and possible a Oculus Rift S later.
Will this work too?

Thanks in forehand!

[Eumel2]

Do you plan on overclocking?

If not you are fine

[Redliquid]

6 minutes ago, Eumel2 said:

Do you plan on overclocking?

If not you are fine

I do not, Might slightly try to oc my gpu but...unlikely.
If you don't mind me asking, how can you be so sure?

[MartinIAm]

16 minutes ago, Redliquid said:

Hello!

I have a 500w modular psu from bequiet! and i want to buy a new gpu going from a GTX 1060 to a MSI Radeon RX 5700XT Evoke OC

• I'm running 3 fans

• Ryzen 5 1600X - 95 watts According to AMD's website

• x2 8gb ram sticks around 2667MHz hz i think.

• 1 ssd, 1hdd

• DAC & Mic

• Mouse & Keyboard

• 2 Monitors

 

My worry is the new gpu pulls up to 225 W according to the site im bying it from

But the recommended watt they suggest the computer to have is 750W.
Will i be alright?

I also plan on adding a 1TB M.2 SSD and possible a Oculus Rift S later.
Will this work too?

Thanks in forehand!

A 750 watt power supply should be fine with some light overclocking. If you are worried get a 800 or 850 watt psu.

[Redliquid]

Just now, MartinIAm said:

A 750 watt power supply should be fine with some light overclocking. If you are worried get a 800 or 850 watt psu.

I don't have a 750w psu, i have a 500W. But the reccomended is 750w.
That's why i'm worried

[MartinIAm]

Just now, Redliquid said:

I don't have a 750w psu, i have a 500W. But the reccomended is 750w.

Going below is not reccomended is not recommended, but it could work. Do you have the computer right now? You could test it with some stress tests on the gpu and cpu and possibly ram and see if those 500 watts are enough. Just for future upgrades it might become an issue. 

[schwellmo92]

500w could be fine, depends if it's a rubbish power supply or not. What exact power supply do you have?

[Redliquid]

21 minutes ago, MartinIAm said:

Going below is not reccomended is not recommended, but it could work. Do you have the computer right now? You could test it with some stress tests on the gpu and cpu and possibly ram and see if those 500 watts are enough. Just for future upgrades it might become an issue. 

I do have it. Do you have any suggestions on how to stres-test it and see? I've been gaming on it for over a year.

 

15 minutes ago, schwellmo92 said:

500w could be fine, depends if it's a rubbish power supply or not. What exact power supply do you have?

https://www.bequiet.com/en/powersupply/927

[schwellmo92]

Yeah you should be fine.

[VEXICUS]

@Spotty can help you with this...

Your system will suck up around 350-400 watts.

Avoid those online wattage calculators.

[Redliquid]

Just out of curiosity, i know the CPU is 95w max, GPU is 250,
How do you estimate / know how much everything else needs?

Correction: Gpu pulls 225w max, cpu 95 so that leaves 180w for the rest of the system.

[Eumel2]

3 hours ago, Redliquid said:

I do not, Might slightly try to oc my gpu but...unlikely.
If you don't mind me asking, how can you be so sure?

I used bequiets online calculator. (You can use any other those are prety similar)

 

2 hours ago, VEXICUS said:

Avoid those online wattage calculators.

This just isnt true, they do give a pretty decent estimate on what you will need. Tested that on 3 systems and it added up pretty well.

 

The things thats not good with them is that they tend to put in just a small headroom so you are at 80-90 % under full load. If you want a rather quiet and efficient system you should aim for roughly 70% on full load. Your system should draw some 380 Watts max so a 500W PSU is pretty much exactly what you want if you dont overclock (because that uses a ton of extra power)

 

Apart from the GPU (got an RX480  at max ~150 Watts) i got exactly the same system and i drew 330W from the wall (so ~300 in the system)

[VEXICUS]

7 hours ago, Eumel2 said:

I used bequiets online calculator. (You can use any other those are prety similar)

 

This just isnt true, they do give a pretty decent estimate on what you will need. Tested that on 3 systems and it added up pretty well.

 

The things thats not good with them is that they tend to put in just a small headroom so you are at 80-90 % under full load. If you want a rather quiet and efficient system you should aim for roughly 70% on full load. Your system should draw some 380 Watts max so a 500W PSU is pretty much exactly what you want if you dont overclock (because that uses a ton of extra power)

 

Apart from the GPU (got an RX480  at max ~150 Watts) i got exactly the same system and i drew 330W from the wall (so ~300 in the system)

My 8700k + 1080ti pulled less than 550w when overclocked.

Also, never go by the online wattage calculators.

A decent 550 watt unit is plenty fr most of the builds, unless you are adding one more gpu fr sli or extreme overclocking.

 

Also, don't get confused between TDP and power draw.

I'll recommend you to watch this video..