How much watts I need for my Power supply ASUS GTX 780 and Intel i7 4770K
Tags:
-
Asus
- Gtx
-
Power Supplies
- Intel i7
-
Components
Last response: in Components
Anonymous
August 21, 2013 6:55:47 PM
Alright, so I have been looking around, and the PSU I think I'll get will be a Corsair Professional Series HX850. But I wanted to know if 850watt is to much, or just the right amount i need for this setup.
I also have a WD 1TB black
Adata 128GB SSD
MSI G45 gaming motherboard
8GB of DDR3 1866mhz G.SKILL Ripjaws X Series
Kraken x60 cooler
Is 850watt to much for all of those? Or is that to much? I would like a modular PSU, and what brand would you recommend me for a good PSU?
I also have a WD 1TB black
Adata 128GB SSD
MSI G45 gaming motherboard
8GB of DDR3 1866mhz G.SKILL Ripjaws X Series
Kraken x60 cooler
Is 850watt to much for all of those? Or is that to much? I would like a modular PSU, and what brand would you recommend me for a good PSU?
More about : watts power supply asus gtx 780 intel 4770k
-
Reply to Anonymous
The Kasafist
August 21, 2013 6:57:54 PM
Anonymous
August 21, 2013 7:01:01 PM
Related resources
- How Much Watts I need for my power supply for My i7-4930k 780 ti sli - Forum
- How much watts for a power supply do I need for two gtx 760 in sli - Tech Support
- How much watt for an i7 4770K + GTX780 - Tech Support
- Gtx780ti + some kind of intel i7 or i5 to run on a 400 watt power supply - Tech Support
- Hi, upgrading GPU to GTX 780. How much power will I need. i5 4670k, corsair vengeance 2x4gb, ASUS b85m-g - Tech Support
200W for the GPU, 100W for the CPU and other bits so in theory, you would be fine with a high-quality 400W PSU if you have no intention of going SLI or adding anything. If you want some headroom for aging and just-in-case minor addons, you might want to aim for 500-650W instead.
750+W is only necessary if you think you might go SLI.
750+W is only necessary if you think you might go SLI.
-
Reply to InvalidError
m
0
l
Anonymous
August 21, 2013 7:03:03 PM
I wouldn't put less than 600w in there. Check out Xfx, Seasonic, OCZ, Pc Power and Cooling, Ultra, and the Corsair non-cx series. Xfx usually has pretty good deals on modular units. Here is a good site for some info: http://www.eggxpert.com/forums/thread/323050.aspx
-
Reply to Swordkd
m
0
l
Best solution
You can always find this information on the GFX card manufacturers web site
http://www.geforce.com/hardware/desktop-gpus/geforce-gt...
95 C - Maximum GPU Temperature (in C)
250 W - Graphics Card Power (W)
600 W - Minimum Recommended System Power (W)
One 8-pin and one 6-pin - Supplementary Power Connectors
SO yes, 850 watts is perfect .... 600 watts for system and 1st card, plus 250 for a 2nd card added later in SLI ..... ofcourse if overclocking, Id go bigger. HX859 gets a 10.0 jonnyguru performance rating and has better voltage stability and lower ripple than more expensive AX series
http://www.geforce.com/hardware/desktop-gpus/geforce-gt...
Quote:
Thermal and Power Specs:95 C - Maximum GPU Temperature (in C)
250 W - Graphics Card Power (W)
600 W - Minimum Recommended System Power (W)
One 8-pin and one 6-pin - Supplementary Power Connectors
SO yes, 850 watts is perfect .... 600 watts for system and 1st card, plus 250 for a 2nd card added later in SLI ..... ofcourse if overclocking, Id go bigger. HX859 gets a 10.0 jonnyguru performance rating and has better voltage stability and lower ripple than more expensive AX series
-
Reply to JackNaylorPE
Share
Anonymous
August 21, 2013 7:04:26 PM
InvalidError said:
200W for the GPU, 100W for the CPU and other bits so in theory, you would be fine with a high-quality 400W PSU if you have no intention of going SLI or adding anything. If you want some headroom for aging and just-in-case minor addons, you might want to aim for 500-650W instead.750+W is only necessary if you think you might go SLI.
What brand would you recommend for me? Nope, just want a single GTX 780 ;D maybe in the future, but stuff like that is to much for me.
-
Reply to Anonymous
m
0
l
GeForce GTX 780 - On your average system the card requires you to have a 550 Watt power supply unit.I'd recommend http://www.newegg.com/Product/Product.aspx?Item=N82E168...
-
Reply to bigcyco1
m
0
l
The Kasafist
August 21, 2013 7:08:54 PM
Anonymous
August 21, 2013 7:10:16 PM
bigcyco1 said:
GeForce GTX 780 - On your average system the card requires you to have a 550 Watt power supply unit.I'd recommend http://www.newegg.com/Product/Product.aspx?Item=N82E168...Looks good, but I'm buying my whole computer from online, but the PSU isn't on the online store. But I think i'll go after a Modular 650Watt PSU. Is there a different brand that is good?
-
Reply to Anonymous
m
0
l
Anonymous said:
bigcyco1 said:
GeForce GTX 780 - On your average system the card requires you to have a 550 Watt power supply unit.I'd recommend http://www.newegg.com/Product/Product.aspx?Item=N82E168...Looks good, but I'm buying my whole computer from online, but the PSU isn't on the online store. But I think i'll go after a Modular 650Watt PSU. Is there a different brand that is good?
-
Reply to bigcyco1
m
0
l
Anonymous
August 21, 2013 7:15:19 PM
how about this modular PSU? http://www.canadacomputers.com/product_info.php?cPath=3... It's corsair, and it's 650 watts.
-
Reply to Anonymous
m
0
l
Anonymous said:
how about this modular PSU? http://www.canadacomputers.com/product_info.php?cPath=3... It's corsair, and it's 650 watts.
-
Reply to bigcyco1
m
0
l
Swordkd said:
I wouldn't put less than 600w in there.There would be nothing wrong with putting less in there if all PSUs were designed to deliver at least 80% of their rated output power 24/7 for their whole warranty period.
Unfortunately, many cheap and even not-so-cheap units out there will fail before that even at 50% load so we end up with recommendations usually being around twice the real requirement.
-
Reply to InvalidError
m
0
l
InvalidError said:
Swordkd said:
I wouldn't put less than 600w in there.There would be nothing wrong with putting less in there if all PSUs were designed to deliver at least 80% of their rated output power 24/7 for their whole warranty period.
Unfortunately, many cheap and even not-so-cheap units out there will fail before that even at 50% load so we end up with recommendations usually being around twice the real requirement.
No, usually recommendations are 500w - 850w depending on the graphics card type and possible quantity, and if they plan on overclocking. I think I've seen one example of a higher wattage than 850w being recommended, and a few of lower than 500w. Also, most of the units recommended are at least tier 3 quality(Corsair CX series) and many are tier 2 according to the link I also included in my post.
For his load, I believe it falls around 450w without actually looking it up, so a 850w with dual graphics and an overclock would work out fine. I didn't account for dual graphics when I made my recommendation because he was already planning on using a single 780.
-
Reply to Swordkd
m
0
l
Swordkd said:
No, usually recommendations are 500w - 850w depending on the graphics card type and possible quantity, and if they plan on overclocking.The thing I was getting at is that quantity is meaningless without sufficient quality to back it up.
What is the actual wall-power draw from PCs with 2x 780s? Usually 600-650W including PSU losses and at 90% efficiency, this means 540-600W PSU output. Theoretically within a (very-)high-quality 650W PSU's capabilities.
-
Reply to InvalidError
m
0
l
Correct me if I'm wrong though, the efficiency rating doesn't deal with % of it's total rated draw. Meaning, if you have a 600w PSU rated at 85% effieciency, you are only getting 510w, but instead, if you are drawing 600w from the PSU, the PSU is drawing the equivalent of 700w from the outlet. Of course, higher efficiency rated PSU's are usually better(usually), but the minimum that usually gets recommended is Bronze +.
So even a crap PSU rated at 600w should give you 600w, but your possibility of a catastrophic failure is much, much higher.
So even a crap PSU rated at 600w should give you 600w, but your possibility of a catastrophic failure is much, much higher.
-
Reply to Swordkd
m
0
l
Swordkd said:
Correct me if I'm wrong though, the efficiency rating doesn't deal with % of it's total rated draw. Meaning, if you have a 600w PSU rated at 85% effieciency, you are only getting 510w, but instead, if you are drawing 600w from the PSU, the PSU is drawing the equivalent of 700w from the outlet.Seems correct to me. If you are confused, about what I said earlier, you probably misinterpreted it.
The 600-650W I was quoting as my starting figure is the raw AC power measured at the wall; not a PSU rating nor the PSU output load. What comes out of the PSU is input power x %efficiency (600-650W x ~90%) and that's where my 550-600W range comes from assuming ~90% efficiency. Then I tacked on an extra 50W margin for things like momentary load peaks beyond typical full-load that might not show up on AC-side power measurements which brings my quasi-ideal (perfect except for conversion losses) PSU rating back up to 650W.
Basically, what I'm saying if that if PSUs had (much) better quality on average, "safety margins" could be rolled back from the currently common 200-400W to 100W.
As for crap 600W PSUs giving 600W, that is how it should be in theory. In practice however, PSU reviews on JonnyGuru and elsewhere frequently demonstrate that 'crap' PSUs and occasional runt units from some of the better brands/models usually get nowhere near their maximum rating before either:
1- outputs drift out of specs
2- *snap* *crackle* *pop*, fireworks and smoke signals
-
Reply to InvalidError
m
0
l
Totalmutation
August 5, 2014 4:16:28 PM
Totalmutation said:
Hey guys i was wondering if you could help me out. I am looking at getting a barebones kit and it comes with a 400 watt power supply and i am looking to run a gtx780ti but not sure what Intel Cpu to get without going over the wattage? thanks400W is pretty low to run a ~300W GPU. Unless you have a really high quality 400W PSU capable of pushing close to 400W out of its 12V rail in there, you will burn it out on short order no matter what CPU you put in there assuming your system ever works at all when under load. If you step down to a GTX770, you may have a reasonable chance of getting away with a 400W PSU.
-
Reply to InvalidError
m
0
l
Totalmutation
August 6, 2014 5:50:28 AM
InvalidError said:
Totalmutation said:
Hey guys i was wondering if you could help me out. I am looking at getting a barebones kit and it comes with a 400 watt power supply and i am looking to run a gtx780ti but not sure what Intel Cpu to get without going over the wattage? thanks400W is pretty low to run a ~300W GPU. Unless you have a really high quality 400W PSU capable of pushing close to 400W out of its 12V rail in there, you will burn it out on short order no matter what CPU you put in there assuming your system ever works at all when under load. If you step down to a GTX770, you may have a reasonable chance of getting away with a 400W PSU.
We'll it's and barebones kit with an sfx 450 watt power supply, sorry missed the 50 watts out. I recently watched a video where Linustechtips said you could put a gtx 780 and i7 4770k and not much else. So how close would it be or would down grading to a i5 4670k give me more room?
-
Reply to Totalmutation
m
0
l
Totalmutation said:
We'll it's and barebones kit with an sfx 450 watt power supply, sorry missed the 50 watts out. I recently watched a video where Linustechtips said you could put a gtx 780 and i7 4770k and not much else. So how close would it be or would down grading to a i5 4670k give me more room?You should start your own thread instead of hijacking someone else's if you intend to continue this any longer.
The power draw difference between an i5 and i7 is only ~10W under full load since the only difference between the two is hyperthreading.
450W gives you a little more breathing room but as I said earlier in this thread, quality is usually a bigger issue than quantity and to get an idea of what sort of quality your included-with-case PSU is, we need at least a brand but preferably its complete model number.
-
Reply to InvalidError
m
0
l
Related resources
- Solvedhow much power(watt) i need for my asus z87 pro matherboard and intel i3 4th generation processor? solution
- SolvedWhat is the best power supply for MSI GTX N780 / i7 4770K? solution
- Solvedwhats the best power supply for gtx 780 and i7 4770k solution
- SolvedHow much watts do I need for my power supply solution
- SolvedHow much watts do I need for 2 GTX 780 SLI and I5 4670K OC'd @ 4.5Ghz solution
- SolvedHow much watts needed for gtx 780 solution
- SolvedWhat PSU will i need for asus gtx 780 oc and i7 4770k? solution
- SolvedHow many watts do i need for an asus gtx 780 ti? solution
- how much watts does my power supply need? solution
- SolvedHow much watts does a 450w power supply sucks from the wall solution
- How many watts would I need to power two asus gtx 760 direct cu II? solution
- SolvedHow much watt power supply do I need solution
- Solvedpower supply for intel core i7 4770k with radeon r9 270x solution
- SolvedIntel core i7 4770k with gtx 780 or intel core i7 4930k with gtx 770 solution
- SolvedIs a TR2 600w thermal take power supply good enough for over clocking intel i7 4770k and powering radeon r9 270x graphics card solution
- More resources
Read discussions in other Components categories
!
for cable management