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How much power do you think GTX 860 will need? And how much it will cost? Should I wait for it or buy GTX 760 and new PSU now?

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March 24, 2014 10:36:03 AM

I could either buy GTX 760 now and new PSU for it (which is around 340$ in total) or wait a few months for new Maxwell architecture's GTX 860 to come out and if it has less power consumption, as new Maxwell GPUs are said/speculated to, then maybe I could just use my current PSU with new 860. New 750 Ti based on Maxwell architecture was super power sufficient so I've heard people speculating that new GTX 860 might require only 400w PSU. So I could basically save money on new PSU and put it in 860 instead, if it will be expensive than 760 now, or just save it completely if it would not be more expensive. Also I have heard people talking that new 860 may be even cheaper than 760 currently as it has happened before with new releases what ended up being cheaper than worse cards in past. Should I wait? Thoughts please?
March 24, 2014 10:47:39 AM

For power requirements you need to focus on the +12v rails and not overall wattage. Overall wattage can be misleading; most of your parts use the +12v rail (most of your high powered parts that is).

Multiply by 12 if the numbers are in amps to get the wattage for the +12v rails.

The GTX 760 needs like 170W on the +12v rail
Then you need to add up how much power your CPU and motherboard use to come up with a safe total for your system.


However, here is an easy thing you can check: What video card do you have now? You can probably safely get a video card that consumes the same amount of power without having to do any fancy power supply calculations.


Should you wait? Don't know; maybe? How long till they release the new version, and do you really need the video card now.
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March 24, 2014 11:08:51 AM

I got integrated Intel 2500 graphics now, how much power do they take, lol? :D 

I kinda need a new GPU... but not really. I mostly play LoL now and it runs great on Intel 2500 cos my monitor is pretty low res. Would like to play visually better games than LoL tho like Titanfall and stuff but I'm not in hurry either, I can wait. I would rather save some money and it seems that I could if I wait. But I don't know either cos so far anything about Maxwells for PC are just speculations pretty much, so I might not end up saving anything or not get better performance for same money, right? I don't know...

About the power... I think I now have either 400w PSU or 450, not sure. And I have no clue what +12v rails means or how to find out what rails I have now and how to calculate that. :/  You say multiply by 12 if the numbers are in amps to get the wattage for the +12v rails. Multiple by 12 what? Amps? Where can I find amps? Are they listed on graphics card settings or something? Sorry I am complete idiot when it comes to those stuff. :/ 
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March 24, 2014 11:30:00 AM

If you want to find out if you can upgrade with the power supply you have now, then check the following things....

* If you are using a pre-built computer, what model is it? I might be able to look everything up that way.

1. What is the exact model processor that you have?
2. What is the exact model power supply that you have ... or if you don't know, look on the power supply, inside your case, for this sticker:
http://lib.store.yahoo.net/lib/svcompucycle/outputspecs...
What does your sticker say?

Based on those two things, (your CPU and how much power your power supply can handle), I might be able to check what video cards might work on that computer (and which ones will need a new power supply).
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March 24, 2014 11:19:16 PM

KevinAr18 said:
If you want to find out if you can upgrade with the power supply you have now, then check the following things....

* If you are using a pre-built computer, what model is it? I might be able to look everything up that way.

1. What is the exact model processor that you have?
2. What is the exact model power supply that you have ... or if you don't know, look on the power supply, inside your case, for this sticker:
http://lib.store.yahoo.net/lib/svcompucycle/outputspecs...
What does your sticker say?

Based on those two things, (your CPU and how much power your power supply can handle), I might be able to check what video cards might work on that computer (and which ones will need a new power supply).


Well, I'm not feeling like opening my case right now. For now I would just like to know what will be a power requirement for new Maxwell cards. Could it be as low as 400w for as powerful card as 760? If it has I will look further and see if other things fits too. But for now would just like to hear your opinions on that as well as price?
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March 24, 2014 11:28:45 PM

As a general guideline, get a 550W power supply for a GTX760 card. However, make sure it has atleast 40A on the +12V rail.
Also get atleast a 80PLUS Bronze rated power supply.
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March 25, 2014 1:50:43 AM

Ok, ok! You suggesting me new PSUs for 760 and stuff but this is not what this thread was originally about. It's about do I even need a new PSU and 760 in first place. Depending what 860 brings. Does somebody is educated enough on subject to tell me what will most likely be the case? Now I don't want exact 100% accurate info since I know it is not out yet. But just a guess basing on your understanding of GPUs and market. Please?
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March 25, 2014 1:57:27 AM

Can't really say.
The only Maxwell cards released right now are the 750 and 750Ti.
The aim there is to reduce the power consumption.
However, high end cards may have a different story altogether.
Who knows, we may even get a card that can perform twice as fast as a 760 for the same amount of power consumption? A guy that has money to buy a 760 wouldn't hesitate to get a 550W power supply to power the thing.

Same logic applies to the 870 and 880 cards.
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March 25, 2014 3:04:14 AM

Ok. When do you think they might be released?
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March 25, 2014 4:20:57 AM

Later this year, probably. The tentative release date is in December, I read somewhere.
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