Question Is my 450 watt PSU enough?

[Jacob 51]

I'm using a Cooler Master V2 Bronze 450 watt PSU. My rig requires 170 watts. I'm gonna install an RTX 2060 (I Don't care about bottleneck and I will upgrade the whole setup later).
With the graphics card installed, my rig will take almost 360 watts (I calculated using the cooler master website).

I've looked at the website and it says that I need 550 watt PSU minimum for the Graphics card.

Should I really upgrade it? I think 450 watt PSU can provide 360 watt efficiently

My specs:
Core i5 3470
Cooler Master V2 Bronze 450 watt PSU
Zebronics H61 Micro ATX form factor
12 GB 1600 MHZ RAM (Hynix and Hyper X Fury)
No graphics card installed at this moment.

 

[Ziadul87]

You can try running it and see if there's any power failure or such. But, I suspect that you've been using that PSU for years and considering it never was a great unit to begin with, I wouldn't push it. So be prepared to buy a new PSU too while buying the 2060. I wouldn't wanna keep an old PSU like that under 80%+ load for long gaming sessions.

 

[Jacob 51]

You can try running it and see if there's any power failure or such. But, I suspect that you've been using that PSU for years and considering it never was a great unit to begin with, I wouldn't push it. So be prepared to buy a new PSU too while buying the 2060. I wouldn't wanna keep an old PSU like that under 80%+ load for long gaming sessions.

That PSU is not old. I bought it a month ago

 

[Ziadul87]

That PSU is not old. I bought it a month ago

You can then try running on it. But get a better PSU later on.

 

[--SID--]

Powerconsumption of the whole system includes the RTX 2060 is less than 300w. Altough it's not a great quality unit it's modern and sufficient for your rig.

 

[Ziadul87]

Powerconsumption of the whole system includes the RTX 2060 is less than 300w. Altough it's not a great quality unit it's modern and sufficient for your rig.

No. i5 3470(90W) + 2060(180W) = 270 MAX. the total system consumption should be near ~330W.

 

[--SID--]

No. i5 3470(90W) + 2060(180W) = 270 MAX. the total system consumption should be near ~330W.

TDP is not the same as powerconsumption. i5-3470 consumes less than 90w and some RTX 2060 do 150w and some hit 180w. 60w for MB, RAM, ssd and some fans is pretty much.

 

[Ziadul87]

TDP is not the same as powerconsumption. i5-3470 consumes less than 90w and some RTX 2060 do 150w and some hit 180w. 60w for MB, RAM, ssd and some fans is pretty much.

i aint talking about TDP, i am talking about power consumption.
https://www.techpowerup.com/review/evga-geforce-rtx-2060-ko/31.html
depending on the model RTX 2060 can consume upto 192W(Peak) and average upto 184W while gaming.

 

[Ziadul87]

TDP is not the same as powerconsumption. i5-3470 consumes less than 90w and some RTX 2060 do 150w and some hit 180w. 60w for MB, RAM, ssd and some fans is pretty much.

Sum up the peaks and you'll find:
90+180+60= 330W
Same as my estimation.

 

[--SID--]

3470 consumes 82w during CB11.5 includes motherboard, ram and ssd. https://nl.hardware.info/artikel/29...erbruik-geintegreerde-gpu-idle--cinebench-115

 

[Ziadul87]

https://www.anandtech.com/show/5871/intel-core-i5-3470-review-hd-2500-graphics-tested/5
It's max 96.6W without any overclocking.

 

[Ziadul87]

And why are you arguing over just 5-8W difference? Not like it makes a difference. And "~330w" means around 330W. It might be somewhere between 315-345W. And not like all system will draw equal power. Some casing has more fans, some people have numerous usb and SATA drives etc.

 

[--SID--]

And why are you arguing over just 5-8W difference?

I'm not arguing about 8w, I'm arguing about the 60w because the 96w you mentioned includes the motherboard, ram and storage. When the math is 96w +180w that's in total 276w! That's close to the 270w I mentioned.

 

[Vic 40]

https://www.anandtech.com/show/5871/intel-core-i5-3470-review-hd-2500-graphics-tested/5
It's max 96.6W without any overclocking.

That is a system wattage, not just the cpu.

 

[Ziadul87]

That is a system wattage, not just the cpu.

Ah. My bad then, sorry sid. I usually just see the power charts. So, i mistook it for just the CPU.
If that's the case, there's plenty headroom left for the PSU. No need for upgrades. Again, sorry.

 

[Vic 40]

Techpowerup are one of the few that really measure energy used by that part itself aka gpu.

When looking at system wattage does efficiency even come into play since measured at the wall which draw is higher than what the components really use.

 

[Ziadul87]

Techpowerup are one of the few that really measure energy used by that part itself aka gpu.

When looking at system wattage does efficiency even come into play since measured at the wall which draw is higher than what the components really use.

So all the power consumption charts of CPU on the internet are actually system power draw from the wall?
(There also was a time when I used to think the TDP listed at intel's website to be the rated power consumption lol)

 

[Vic 40]

So all the power consumption charts of CPU on the internet are actually system power draw from the wall?

Think about all of them yes, hard to seperate the cpu from the rest. With a gpu can they put a special riser card in between with the ability to show power usage.

 

[Ziadul87]

Think about all of them yes, hard to seperate the cpu from the rest. With a gpu can they put a special riser card in between with the ability to show power usage.

I see, thanks