Will my 500W PSU run GTX 750 ti?

[techrits]

Hi,
My PC specification :
CPU - Intel i5 4440
Motherboard - ASUS H81M-C
RAM - DDR3 8GB (4x2)
HDD - SATA 500 GB

I'm planning to buy a GPU withing 2-3 months.
I will be choosing either Radeon 260x or GTX 750 ti
but I found that 260x requires much power thus I want to be sure wheather my psu can run both f them. though both are good gpu 260x is almost 1.5k less in cost.

Another query is that is my current psu handles above specs. properly?
I have captured a picture so you can look into it.

 

[i7Baby]

You need a good quality 400+W PSU with at least 20A on the 12V rail to run a PC with a GTX750Ti in it.

Good PSUs are in tiers 1, 2 and 3 of http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html#xtor=EPR-8886

Your PSU is a 2 12v rail PSU. If it was single rail - 36A - then it would be OK.

 

[theunliked]

The gtx 750ti needs at least 20A on the 12V rail. The radeon is out of question because it needs more power than the 750ti.
This is a good one http://www.newegg.com/Product/Product.aspx?Item=N82E16817438028

 

[rdc85]

why R7 260x is a problems?

For R7 260x it only use about 80-90watt,
1X75 Watt 6-pin PCI Express power connector is required.
I'm guessing it will be feed from 12v2 (that have 18A) and the rest from Pci-ex mobo (12v1)..

as long as your PSU don't lies with the label and have pci-ex 6pin or 6+2pin power cable,
I don't see any problems..

 

[maxalge]

why R7 260x is a problems?

For R7 260x it only use about 80-90watt,
1X75 Watt 6-pin PCI Express power connector is required.
I'm guessing it will be feed from 12v2 (that have 18A) and the rest from Pci-ex mobo (12v1)..

as long as your PSU don't lies with the label and have pci-ex 6pin or 6+2pin power cable,
I don't see any problems..

For gpu's you need to focus on amps on 12v rail. A 260x needs 19 amps.

The vast majority of these types of cheap power supplies exaggerate or downright LIE about their specs.

Not trustworthy at all.

Why risk other components?

 

[rdc85]

...For gpu's you need to focus on amps on 12v rail. A 260x needs 19 amps....

Can't argue about fake PSU...

But 260x don't drain 19amps only via PCI-ex slot (in mobo) or only via PCI-ex cable (from psu)...

In single rail PSU, there a no problem just focus on amps...
but in multi rail PSU like OP have (or like mine)... it's not that simple...
It will be fine as long as there is no overload of each rail..

From g3D review the card only used 80-90w (that's full stress, lower than 750Ti).
most of them will be supplied by pci-ex cable (one rail 12v2),
the rest from pci-ex slot (mobo, the other rail 12v1)

here is the review:
http://www.guru3d.com/articles_pages/his_radeon_r7_260x_icooler_review,5.html

The power requirement on the manufacture always higher than actually used..
my rig never tops 450w (according my APC UPS) that is including, pumps, 7.1 speaker, 23" monitor, router, + 2 smartphone charging..

but again, don't know how good is that PSU Brand..
but even some well known brand can have crappy PSU.. (better check review first)
well at least they don't blatant lies in the label..

edit: btw 19 amps is for whole system right...
not the card only... the card itself is 105watt card (OC version)..
Don't confuse about this...
http://www.msi.com/product/vga/R7-260X-2GD5-OC.html#hero-specification

 

[maxalge]

...For gpu's you need to focus on amps on 12v rail. A 260x needs 19 amps....

Can't argue about fake PSU...

But 260x don't drain 19amps only via PCI-ex slot (in mobo) or only via PCI-ex cable (from psu)...

In single rail PSU, there a no problem just focus on amps...
but in multi rail PSU like OP have (or like mine)... it's not that simple...
It will be fine as long as there is no overload of each rail..

From g3D review the card only used 80-90w (that's full stress, lower than 750Ti).
most of them will be supplied by pci-ex cable (one rail 12v2),
the rest from pci-ex slot (mobo, the other rail 12v1)

here is the review:
http://www.guru3d.com/articles_pages/his_radeon_r7_260x_icooler_review,5.html

The power requirement on the manufacture always higher than actually used..
my rig never tops 450w (according my APC UPS) that is including, pumps, 7.1 speaker, 23" monitor, router, + 2 smartphone charging..

but again, don't know how good is that PSU Brand..
but even some well known brand can have crappy PSU.. (better check review first)
well at least they don't blatant lies in the label..

edit: btw 19 amps is for whole system right...
not the card only... the card itself is 105watt card (OC version)..
Don't confuse about this...
http://www.msi.com/product/vga/R7-260X-2GD5-OC.html#hero-specification

It's hard to understand what exactly you are talking about.

I just finished posting about how most power supplies are exaggerated tin cans. That's WHY manufacturers use high power requirements, to take into account those useless power supplies.


http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

That's why people make tier lists, to help people get a good power supply.


But the 260x itself needs 19 amps.



Also the 750 ti is MUCH more efficient ~6 amps.

 

[rdc85]

where do people get the 19A requirement? and think the card itself consume 19A in 12v rails?

the card (R7 260X) itself consume only 80-110 watt, not a 220-240 watt (aka 19-20A) beast....

edit: @maxalge
do you even read the review link i posted..
750ti are not much lower in power consumption, a level at the best

For anyone interested try google about multi rail PSU... vs single rail PSU,
the pro and cons about it.

 

[maxalge]

where do people get the 19A requirement? and think the card itself consume 19A in 12v rails?

the card (R7 260X) itself consume only 80-110 watt, not a 220-240 watt (19-20A) beast....

edit: @maxalge
do you even read the review link i posted..
750ti are not much lower in power consumption, a level at the best

Explain then how there are 750 ti's that run ONLY from the pcie slot.

 

[i7Baby]

The 19A and 450W is for the whole PC with a R7 260X in it.

The R7 260X itself can consume 129W as shown in http://www.tomshardware.com/reviews/radeon-r9-280x-r9-270x-r7-260x,3635-18.html

The graphics card will get up to 75W from the pcie slot and the rest from the power supply pcie connectors.

 

[rdc85]

19A is not my word, I will take guru3D words instead of the one saying it need 19A anytime...

750 ti only runs from pci-ex slot actually worse since it means all power is delivered via single rail (mobo)...
that is the cons of having multi rails psu, since it easily overload the rails..

@maxalge
I'm stressing about PSU, and you stressing on the GPU...
btw this not about 260x vs 750ti, technically if the psu label is correct
it can runs r7 260x fine...

 

[rdc85]

The 19A and 450W is for the whole PC with a R7 260X in it......

Thanks for clarify it, some people just read without trying to understand what 19a means...
and how actually psu works... (multi rails one, in this case)

edit: btw miss click the solution

 

[maxalge]

The 19A and 450W is for the whole PC with a R7 260X in it.

The R7 260X itself can consume 129W as shown in http://www.tomshardware.com/reviews/radeon-r9-280x-r9-270x-r7-260x,3635-18.html

The graphics card will get up to 75W from the pcie slot and the rest from the power supply pcie connectors.

Ok then this clears it up.

260x should be about ~10.75 amps then.


A 750 ti needs about ~6.25 amps.

 

[techrits]

Thank you very much i7Baby, theunliked, maxalge and rdc85 for quick reply.

though you gave me bad news

First of all i dont see any 6 pin connector to my psu so I can't use 260x with this.
Nor my parents will allow me to spend upto 15k (GTX 750 ti or 260x + New PSU)
so I need a gpu that my current psu can run flawlessly.
So can you suggest me one?

Thanks

 

[i7Baby]

If you don't have a 6pin connector, then about all you can run is a GTX750.

 

[rdc85]

yeah if it doesn't have 6pin pci-ex then PSU is doesn't designed to handle GPU that need external load..
more likely the label is fake (since it's uncommon to 500w PSU to don't have any pci-ex power),

It's better to buy PSU first then saving more money for GPU, buying to low tier card may not good investment,
since u already have good cpu.. (bad psu can lead to mobo, gpu, hdd, failure.. speaking from own experience)

(u can try resell that psu, to get some money..
it's not that uncommon here, some people still look for cheap price psu, even knowing the risk)