gtx 650 ti boost or gtx 660 or gtx 660ti or gtx 760 on 400w seasonic psu ?

ringzin_84

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I have following configuration
motherboard: intel dg41cn
Hard drive : 500gb samsung + 80gb seagate
ram : 3gb ddr2
Cpu: e5700
Dvd drive: 1xdvd drive
gpu : gtx 650 ti 1 gb 128 bit
1x avermedia internal tv tuner card
os: windows 8.1
psu: seasonic ss400bt

i want to buy gtx 760 2gb

my 400 w psu specs:
Power Output 400 W
Efficiency 85 %
Current at DC Output of +3.3 V 20 A
Current at DC Output of +5 V 20 A
Current at DC Output of +12 V 30 A
Current at DC Output of -12 V 0.8 A
Current at DC Output of +5 V sb 2.5 A
Motherboard 1 Motherboard Connector with 20 pin, 24 pin
CPU 1 CPU Connector with 4 pin
PCI-e 2 PCI-e 6 pin
SATA 4 SATA Cables
Peripheral 2 Peripheral Connector with 4 pins

will i able to run this card on this psu ?
 

ringzin_84

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i dont want better one i just want to know which will run easily on my pc even if my gpu is oc ?

 

emdea22

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A gpu doesn't require an X watts psu, it does require a certain amperage on the +12 rail. You will be fine with that psu. Seasonic makes quality psu's that can deliver even more than the rated wattage. With that said, don't you think its kinda pointless to pair a 760 with that cpu? you'll hardly see any benefits unless you're playing mantle games in which case you should go amd...

Was only one post when i wrote this ^^
 

ringzin_84

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will 660 run ?
 

ringzin_84

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so which gpu is best match for my psu ?
 

emdea22

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30amps x 12volts = 360w you subtract 100w for cpu and hdd which is overkill in your case, and you get left with 260w MINIMUM worst case scenario. A 760 draws 170 W of power taken from official specs. With OC that can get to low 200s and you STILL have enough juice left... truth is PCs dont draw as much power as people might think
 

ringzin_84

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so which one to buy final please ?
 

emdea22

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Power wise i probably wouldn't go above a 760 with OC or 770 without OC - just to keep your nvidia trend going
Considering your CPU i wouldn't upgrade at all, what do you intend to use the new GPU for? need more info
 

ringzin_84

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for gaming

 

emdea22

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You will see slight performance increase in crysis 3 as long as you keep cpu bound settings to low, you should see considerable increase in splinter cell and you should see close to NO increase in BF4 With your specs + geforce 760

Hope this gives you enough info, i would personally suggest keeping your current gpu and upgrading your cpu but thats another story
 

verma1891

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@Emdea:
Do you even know what are you speaking? If it requires a current(amps) it directly means it require power(watt). Watts and amps are inter related by the equation-Power(W)=Voltage(constant 12V)xCurrent(Amps). So, GPU's do actually require both amps and watts. Also, for A PSU, the wattage is total for different voltage outputs like 12v, 5v etc. A 500W psu doesnot mean that it will provide 500W on 12v rail. There are other voltages also. Similarly, for current, OP's PSU is rated 30A at 12V. This is a maximum figure given that it has wattage left after providing to all other voltages.
And that 770 recommendation on a 400W PSU was completely hilarious. 400W will not even fulfill the amperage requirements lol.
Even a 760 may cause problems and in no way, will be handled "easily" with that PSU.

@OP: Your CPU will surely bottleneck higher end cards, so you better stick to any of the 650ti or the 660.

PS. I am an engineer and I know what I am talking about.
 

ringzin_84

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so which gpu should i buy
or should i buy gtx 750 ti
or don't buy any gpu but buy i5 cpu
will there be any performance increase after ugrading cpu not gpu ?
 

emdea22

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I'm also an engineer, i know exactly what i am talking about. Look above, i calculated his maximum output on the +12 rail not the whole PSU. A 400w seasonic will handle almost any single card configuration. And yes , i am speaking from experience as i build PCs...
 

BnG

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Sorry, but where did you get this info from?

I'm 100% sure the 760 needs a 500w PSU at least =)
 

emdea22

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If you want to go intel, upgrade to an i5, you should see considerable performance increase with your current GPU. Get the "P" version if you dont intend to overclock or the "K" version if do overclock. Remember you need a new motherboard and ram
 

emdea22

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That "need" for 500w is for people who don't know their 12v rating and for not that good psu's so people don't run into problems. Read my other posts
 

verma1891

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I'm also an engineer, i know exactly what i am talking about. Look above, i calculated his maximum output on the +12 rail not the whole PSU. A 400w seasonic will handle almost any single card configuration. And yes , i am speaking from experience as i build PCs...
Ok, best of luck running a 770 on a 400W PSU.

"snickers"
 

ringzin_84

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will i see greater performance increase in upgrading gpu or cpu?
also i bought 128-bit card in the past i never got a feeling of satisfaction while playing game
but when i played at my frend's home he has gtx 560 ti which is 256 bit i feel very satisfaction after playing game
cause i like to turn antialising
will i5+gtx 650 ti 128 bitt will give me visual satisfaction
or
e5700+gtx 660 non ti 192 bit ?

 

emdea22

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I have an R9 280x running on a seasonic s12II 430w 24/7 mining. So yes, when talking about top quality brands of psu's you can do much with a 400w. You can probably get a no-name 500w and it will crash and burn on the same rig.
I hope i didn't offend you. I just wanted to give the correct info.