Which Power Supply?

CBrooksC · 10 Feb 2011 at 18:42

I was looking at Graphics cards and Have my heart set on a geforce GTX 465.
It said minimum power requirements 550 watt. Do that mean that I mean I can get a 550 watt power supply? If not how much more shall I get? 700?

If it dosen't matter which one of these shall I get?
http://www.overclockers.co.uk/showproduct.php?prodid=CA-045-AK&groupid=701&catid=123&subcat=1082
http://www.overclockers.co.uk/showproduct.php?prodid=CA-118-AN&groupid=701&catid=123&subcat=1088

stulid · 10 Feb 2011 at 18:43

neither, this - http://www.overclockers.co.uk/showproduct.php?prodid=CA-042-BQ&groupid=701&catid=123&subcat=1083

the 550w suggestion is just to cover their backsides, and also unbranded/no name psu's wont put out what the label suggests.

CBrooksC · 10 Feb 2011 at 18:47

So this powersupply will keep the whole PC running well... and It wont cause any performance issues?
I.e not enough power.

stulid · 10 Feb 2011 at 18:50

its perfect.

shows the complete power draw for a Intel i7 system and various cards, under full load using a stress program called Furmark.

a GTX470 and GTX465 share the same PCB and power circuitry etc, some GTX465 have been able to un-lock into a GTX470 as they are almost identical.

CBrooksC · 10 Feb 2011 at 18:50

Also Does it matter if you get a bigger power supply? I saw a 650watt for £59.99.

stulid · 10 Feb 2011 at 18:54

doesnt matter, just means it will cope with even bigger cards.

what is the make and model of this 650w psu?

CBrooksC · 10 Feb 2011 at 19:24

http://www.overclockers.co.uk/showproduct.php?prodid=CA-200-CM&groupid=701&catid=123&subcat=1103

stulid · 10 Feb 2011 at 19:25

avoid, the GX range from coolermaster get poor reviews, bad ripple voltage.

£10 more - http://www.overclockers.co.uk/showproduct.php?prodid=CA-003-XF&groupid=701&catid=123&subcat=1497

review - http://www.hardwaresecrets.com/article/XFX-PRO-650-W-Power-Supply-Review/1165

but where does the spending stop?

CBrooksC · 10 Feb 2011 at 19:29

What do you mean? What is my budget?
Also how much power should I leave for the rest of PC? So if Graphics card uses 400 out of 500 is 100 enough for Mobo and hdd etc?

stulid · 10 Feb 2011 at 19:33

CBrooksC said:
What do you mean? What is my budget?
Also how much power should I leave for the rest of PC? So if Graphics card uses 400 out of 500 is 100 enough for Mobo and hdd etc?

the 400w is the WHOLE PC as measured from a wall socket.

And what i mean by where does the spending stop? is, the bequiet will be perfect, you dont need to spend nearly £30 more for a 650w psu.

CBrooksC · 10 Feb 2011 at 19:48

My budget for psu is about £60 I think LOL.

Also I mean do I only need to get a PSU that can cope with graphics card?
For example if I get a graphics card that uses 450watts and my PSU did 500 would I need to get a bigger PSU to power rest of PC or would the 50watts left from the PSU cover that?

stulid · 10 Feb 2011 at 19:50

well no graphics card released uses 400w on its own, so dont worry about it.

£60 gets either the bequiet above.

this - http://www.overclockers.co.uk/showproduct.php?prodid=CA-035-CS&groupid=701&catid=123&subcat=

or the XFX 650w for £68

pcAnywhere · 10 Feb 2011 at 19:53

The graphs are the power requirements for an entire system. So the PSU specked earlier is perfect

CBrooksC · 10 Feb 2011 at 19:53

But do you know what I mean.. Like how much do you think I need to reverse to power the rest of the PC?

stulid · 10 Feb 2011 at 19:55

whats the specs?

f12f12 · 10 Feb 2011 at 19:59

are you sure you want a gtx465? that's like the worst card i could think of.

isn't the gtx650ti a better choice?

as said stick with a good brand and keep a eye for efficiency.

CBrooksC · 10 Feb 2011 at 20:01

Well I'm building it so this is the stuff I'm buying.
http://www.overclockers.co.uk/showproduct.php?prodid=cp-268-am
http://www.overclockers.co.uk/showproduct.php?prodid=mb-424-as
http://www.overclockers.co.uk/showproduct.php?prodid=my-203-cs
http://www.zotacusa.com/zotac-geforce-gtx-465-1gb-256-bit-607mhz-3206mhz-zt-40301-10p.html

stulid · 10 Feb 2011 at 20:02

CBrooksC said:
Well I'm building it so this is the stuff I'm buying.
http://www.overclockers.co.uk/showproduct.php?prodid=cp-268-am
http://www.overclockers.co.uk/showproduct.php?prodid=mb-424-as
http://www.overclockers.co.uk/showproduct.php?prodid=my-203-cs
http://www.zotacusa.com/zotac-geforce-gtx-465-1gb-256-bit-607mhz-3206mhz-zt-40301-10p.html

that will use a lot less power than the graphs above do, AMD systems use a lot less power, so instead of 400w total, thats more 300-350 watts total.

CBrooksC · 10 Feb 2011 at 20:03

How much are the GTX650TI?

CBrooksC · 10 Feb 2011 at 20:04

stulid said:
that will use a lot less power than the graphs above do, AMD systems use a lot less power, so instead of 400w total, thats more 300-350 watts total.

Ok so at 300watts do I need to get a 600 watts including the graphics card?