psu Is this worth psu getting?

[Matti1311]

I have found this psu (https://m.ebay.co.uk/itm/XFX-PRO850W-XTS-Gold-850W-Fully-Modular-Power-Supply-Unit-XPS-850W-BEF-/263477392748?_mwBanner=1) fully modular 850w 80+ gold xfx.

 

Is it worth getting or should I pay the same for a new modular psu? (The postage for me is £5)

[seon123]

Since the seller is lying about being an XTS, no. You can see that it's an XPS, which came out around 2009. Definitely don't get it

[Hip]

I wouldn't get this old PSU too. Rather buy something new. Thermaltake Berlin for example.

[Stefan Payne]

28 minutes ago, Matti1311 said:

I have found this psu (https://m.ebay.co.uk/itm/XFX-PRO850W-XTS-Gold-850W-Fully-Modular-Power-Supply-Unit-XPS-850W-BEF-/263477392748?_mwBanner=1) fully modular 850w 80+ gold xfx.

 

Is it worth getting or should I pay the same for a new modular psu? (The postage for me is £5)

1. For what 850W???

2. There are better options than that one...

 

And with a normal single CPU/GPU System, 450-550W is fine. 850W is something you'd want for mining or multiple graphics cards and HEDT system..

And makes only really sense when there is a change in Plattforms (ie Dark Power Pro P11) but not with most other options.

[Stefan Payne]

12 minutes ago, Hip said:

I wouldn't get this old PSU too. Rather buy something new. Thermaltake Berlin for example.

Oh god...

If you don't know what you are talking about, don't say anything pls.

 

Because you recommended a rather bad PSU with 650W that really is useless and makes no sense at all...

[Matti1311]

2 minutes ago, Stefan Payne said:

1. For Qhat 850W???

2. There are better options than that one...

I have a system that needs 700w, thought it looked good for the price.

[Stefan Payne]

1 minute ago, Matti1311 said:

I have a system that needs 700w, thought it looked good for the price.

What system is that?!

It would be nice if you just listed the components and not just claimed something you can not prove.

[Matti1311]

https://uk.pcpartpicker.com/list/7M3RsZ is my build, it pulls 620w from the wall after overclocks and etc. 700w would be optimal for the psu efficiency curve.

[seon123]

2 minutes ago, Matti1311 said:

https://uk.pcpartpicker.com/list/7M3RsZ is my build, it pulls 620w from the wall after overclocks and etc. 700w would be optimal for the psu efficiency curve.

Not even close. The 290X has roughly the same TDP as Vega, and will draw around 300W, a bit more when overclocked. Anandtech's Vega 64 air cooled with an X299 system drew 460W under load a gaming load, less with GPU synthetics. 

The difference in efficiency between a 50% load and a 100% load is ~3%. That's nothing. Just get a better 550-650W PSU

[Stefan Payne]

15 minutes ago, Matti1311 said:

https://uk.pcpartpicker.com/list/7M3RsZ is my build, it pulls 620w from the wall after overclocks and etc. 700w would be optimal for the psu efficiency curve.

Have you ever measured the power consumption at the wall??

How the hell did you pull 620W from the wall with _THAT_ setup?! 

Grilling the GPU with 1.4V??

 

Or is that just the value of some "PSU 'Calculators'"??

And have you taken Efficiency into acount??

And to bash that configuration further:

Where is the SSD?!

That's essential!!

[Stefan Payne]

3 minutes ago, seon123 said:

The difference in efficiency between a 50% load and a 100% load is ~3%. That's nothing. Just get a better 550-650W PSU

Totally agree!

Rather get a good PSU with 80plus Gold certificate (because there are no good Bronze units) or even Platinum one.

 

Going 'FUll overwatt' just gives you no advantage at all. Just cost money, gives you in many cases a louder PSU and more damage in case of something bad happening (like a short)...

 

If you want a quiet PSU, you have to go for a quiet one that is designed and made to be quiet!!

The Wattage is irrelevant (well, as long as it is enough, obviously)...

[STRMfrmXMN]

7 hours ago, Matti1311 said:

https://uk.pcpartpicker.com/list/7M3RsZ is my build, it pulls 620w from the wall after overclocks and etc. 700w would be optimal for the psu efficiency curve.

LOL

 

That system maybe draws 300W with overclocks. Buy a Kill-A-Watt and then actually see what that system draws. By your logic, your 290 and i3 use more power than my 1700X at 3.9GHz and a heavily OC'd GTX 970.

 

Also, don't bother talking about "PSU Efficiency curves." This varies based on the temperature of the PSU and the room, the type of PSU, etc, and it's not something worth bothering yourself with.

 

For the record, if you have a 7700K and two GTX 1080s you'd be more likely to see about 620W power draw from the wall.

[Matti1311]

6 hours ago, STRMfrmXMN said:

LOL

 

That system maybe draws 300W with overclocks. Buy a Kill-A-Watt and then actually see what that system draws. By your logic, your 290 and i3 use more power than my 1700X at 3.9GHz and a heavily OC'd GTX 970.

 

Also, don't bother talking about "PSU Efficiency curves." This varies based on the temperature of the PSU and the room, the type of PSU, etc, and it's not something worth bothering yourself with.

 

For the record, if you have a 7700K and two GTX 1080s you'd be more likely to see about 620W power draw from the wall.

AMD R9-290X http://www.guru3d.com/articles-pages/radeon-r9-290x-review-benchmarks,10.html without oc (the efficiency in these tests is 100% in reality its ~90%, add an extra 15% for a high oc, add the HDD, LED, Fans, Aio onto that and etc. Anything under 600w will be cutting it a bit too close

[LienusLateTips]

28 minutes ago, Matti1311 said:

AMD R9-290X http://www.guru3d.com/articles-pages/radeon-r9-290x-review-benchmarks,10.html without oc (the efficiency in these tests is 100% in reality its ~90%, add an extra 15% for a high oc, add the HDD, LED, Fans, Aio onto that and etc. Anything under 600w will be cutting it a bit too close

That proves our point. R9 290X: ~300W, i3 8350K: ~120W and then +100W for other things: 520W.

 

Just get a 600/650W unit.

 

Non-Modular: https://uk.pcpartpicker.com/product/f4QRsY/be-quiet-pure-power-10-600w-80-silver-certified-atx-power-supply-bn274

Modular: https://uk.pcpartpicker.com/product/GMYWGX/be-quiet-pure-power-10-cm-600w-80-silver-certified-semi-modular-atx-power-supply-bn278

Gold Modular: https://uk.pcpartpicker.com/product/PVzZxr/corsair-txm-gold-650w-80-gold-certified-semi-modular-atx-power-supply-cp-9020132-na

Gold Full Modular: https://uk.pcpartpicker.com/product/Rp8H99/corsair-power-supply-cp9020091na

 

[Stefan Payne]

38 minutes ago, Matti1311 said:

AMD R9-290X http://www.guru3d.com/articles-pages/radeon-r9-290x-review-benchmarks,10.html without oc (the efficiency in these tests is 100% in reality its ~90%, add an extra 15% for a high oc, add the HDD, LED, Fans, Aio onto that and etc. Anything under 600w will be cutting it a bit too close

You don't know what _YOUR_ system consumes until you measure it with a power meter. There are some energy cost things that are widely available and pretty cheap that are able to do some half way decent values.

 

Why not get one of those before you assume things?!

 

The HDD I measured are somewhere between 5-10W primary, so not really worth that much thinking about.

LEDs are another maybe 5W or so (if we are talking about larger LED strips).

 

The point is that you just assume things.

You don't know it.

 

I measured my PC systems regularly. And its pretty darn far away from even 550W!

A 650W is enough for _TWO_ R9-280X with an i7-3820 and even a bit OC. I really need to push those components to get close to the 650W rating...

 

And if you want to do OC, a powermeter is recommended because you have to think if the increase of power consumption is worth the performance. 
Sometimes you pay a very heavy price for overclocking!!

 

On my Ryzen 7-1700X if I force all 8 cores to 4GHz with the Default 1,35V I get +100W easily. Is that really worth the additional 500MHz??

 

 

Buttom line:
Get a somewhat decent Powermeter first!

Something like Brennstuhl PM231 (but I think that one might have a bug and shows double the consumption of modern PCs from time to time).