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Corsair HX750 vs HX850

post #1 of 8
Thread Starter 
Hello guys,

I'm going to build a new pc in the future that will use 2500k or the Bulldozer, 8GB DDR3, high-end MOBO and 2x 6950's.

My question was wich of the PSU's will be enough for this kind of system and wich one is better with efficiency i don't wanna suck more power then I need for the system so I don't get high bills.

Shephard.
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post #2 of 8
Just because you get the higher wattage PSU doesnt mean you will use more power at the plug. Think theyre both pretty efficient PSUs but I'd go with the 850 just so I had some extra for upgrades etc. However couldnt say about BD consumption but both PSU's would work with the 2500k system fine.

Dave.
    
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post #3 of 8
The HX750 is fine. The two are both on the same CWT DSG platform so most things would be identical.
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post #4 of 8
Thread Starter 
There is a price difference of €21 between those 2, is it worth for 100w extra?
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post #5 of 8
The rig you have planned will consume about 500-550W DC at maximum stress. So unless you're going to use the extra watts that the HX850 will give you, it's a waste of money.
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by GameBoy;12887675 
The rig you have planned will consume about 500-550W DC at maximum stress. So unless you're going to use the extra watts that the HX850 will give you, it's a waste of money.

Got it! Thank you sir.

/thread
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post #7 of 8
To me it would be but like GameBoy said theyre near enough identical, but that 100w might save me having to buy a whole new PSU in the future is my way of looking at it.
Also the closer to max load they get (not sure with these PSUs) the less efficient they are, you may find that the efficiency alone of running it at less stress will save you the cost of the 850. Think the sweet spot for efficiency is around 50% but could be wrong, go take a look at some reviews see if it does make a difference.


Dave.
Edited by davieg - 3/27/11 at 5:11am
    
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MonitorKeyboardPowerCase
28" Hanns-G 1920x1200 Logitech G110 Corsair HX 850 Corsair Obsidian 800D 
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Naga (Leftie) Worever I can find to hand Aquaero 5 XT 
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CPUMotherboardGraphicsRAM
i7-3770K MSI Z77A-GD65 GTX Titan G.Skill RipJawsX 8GB 
Hard DriveOptical DriveCoolingOS
Agility 3 BD Rom/ DVD-RW EK Supreme HF Windows 8 Pro 
MonitorKeyboardPowerCase
28" Hanns-G 1920x1200 Logitech G110 Corsair HX 850 Corsair Obsidian 800D 
MouseMouse PadOther
Naga (Leftie) Worever I can find to hand Aquaero 5 XT 
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post #8 of 8
Quote:
Originally Posted by Cmdr.Shephard;12887682 
Got it! Thank you sir.

/thread

No problem. thumb.gif
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CPUMotherboardGraphicsRAM
5820k ga-x99-sli gigabyte 7970 wf 16gb 4x4 lpx 
Hard DriveCoolingPowerCase
samsung 830 128gb ven x/gt ap-15 evga g2 650w corsair 450d 
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jbl lsr305 
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