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PSU Requirements for Vid Card(s)

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  • Power Supplies
  • Monitors
  • Components
  • Build
Last response: in Components
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May 20, 2014 6:47:03 AM

Hello. This is pretty much the build im going for http://pcpartpicker.com/p/3N30l I have all the parts with the exception of the monitor / vid card. I picked the 780 and that monitor because i believ they will be in the same ballpark as far as pricing, I'm trying to hold for the 800 series and waiting for the Rog Swift PG278Q.
I've heard some things about the new cards that they might not be as good as the hype because it would still be based on kepplar or someting instead of maxwell? (Sorry, I'm totally clueless when it comes to that) If the monitor comes out before the 800 series, I'm just gonna get he 780 / 780ti and finish the build. Or do you think it would be worth wile to stick it out for a while longer for the new tech.
Anyway, the main question i have is. Would the PSU i have support 2 780 / 780tis? I was originally going to go with a corsair RM 1000w , but after some quick reviews, i saw that some people were having issues with their RM, but when i checked out the seasonic one, I did not see 1 issue from anyone and that seasonic is pretty much the top dog in PSUs (maybe i didnt dig deep enough?) Please let me know if I made a mistake and need a more powerful PSU. Also let me know if you think I should wait for the 800 series / PG278Q monitor. Anyone have any updates to when these should be coming out? Thank you for reading, appreciate all the help I can get. Take care.

More about : psu requirements vid card

a b ) Power supply
a b C Monitor
May 20, 2014 7:23:02 AM

Seasonic is top quality hardware, and the unit you picked out should be fine for 2 way SLI. You could opt for a 1000w unit if you plan to overclock all of your components at some point.
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May 20, 2014 7:31:04 AM

sincreator said:
Seasonic is top quality hardware, and the unit you picked out should be fine for 2 way SLI. You could opt for a 1000w unit if you plan to overclock all of your compenents at some point.


I may do the CPU a tad, but nothing crazy. I'm not going to touch the GPUs
Thanks for the quick reply. Appreciate the help. :) 
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a c 120 ) Power supply
a b C Monitor
May 20, 2014 7:52:29 AM

That power supply is perfect, and more than enough for 2-way SLI 780 Ti's. Definitely don't need 1000w. At gaming load, you'll be around 600w or so, and under synthetic stress tests no more than 650w: http://www.anandtech.com/show/7492/the-geforce-gtx-780-...

And that's with an overclocked i7 Extreme. Moderate CPU overclocks don't add nearly as much power as people think they do. Only when you start adding a lot of extra voltage do you get a lot of extra power draw. Overclocking to 4.2-4.4 will add only a small amount of power.
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May 20, 2014 7:56:02 AM

HiTechObsessed said:
That power supply is perfect, and more than enough for 2-way SLI 780 Ti's. Definitely don't need 1000w. At gaming load, you'll be around 600w or so, and under synthetic stress tests no more than 650w: http://www.anandtech.com/show/7492/the-geforce-gtx-780-...

And that's with an overclocked i7 Extreme. Moderate CPU overclocks don't add nearly as much power as people think they do. Only when you start adding a lot of extra voltage do you get a lot of extra power draw. Overclocking to 4.2-4.4 will add only a small amount of power.


Thanks for the info, great to know. Now I wont sweat as much when I start. I have never overclocked before, is it fairly simple? I'm not trying to do anything ridiculous, just want to give it a little bump =P
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a c 120 ) Power supply
a b C Monitor
May 20, 2014 7:58:43 AM

For small to moderate overclocks, it's pretty easy :)  Tom's Hardware has a good guide to it. For this kind of overclock, it's usually as simple as bumping up voltage a tad bit and changing the CPU ratio. I have my i5 at 4.2, and just had to nudge up voltage and changed the ratio to 42, and I'm 100% stable without messing with anything more.

Just be sure to read up first so you understand what you're doing :) 
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