Corsair AX1200i or AX1500i

[Galatian]

Hey everybody,

I just upgraded to a Core i7-4790K and I'm planning on going Trifire/Tri-SLI whenever the new cards from Team Red and Green come out. My case is equipped with a custom waterloop, so I can maintain high overclocks. Assuming the CPU draws around 150W during Prime95 and a overclocked GPU would draw like 400W should I rather take the new 1500 W supply or are my figures completely off and the 1200W is good enough?

 

[poohbear]

1200wt is plenty even for tri sli, the thing is all the current generation mid level GPUs from Nvidia are already very efficient, you can run 1 GTX 760 on a 400wt PSU with an overclocked haswell, their power efficiency is amazing. The Radeons are more power hungry, so check the wattage on those Radeons to be safe, but the current gen of mid level Geforce cards would be fine with 1200 in SLi. You never speficied which cards you're getting though. The higher end ones are obviously more power hungry, this post is going on the assumption that you're going TRI SLI with mid range cards.

 

[Galatian]

Well I'm waiting for the next generation to come out before I but a new GPU. Of course nobody can tell how much they consume. I'm not a fan of either camp, I will go with performance/Euro. Right now that would be a R9 290 and watercooled those can sip quite a bit of power, can't they?

 

[Z15CAM]

Right now that would be a R9 290 and water cooled those can sip quite a bit of power, can't they?

Yes they can where an XFX BEFX 750 to 850W KM3 can handle a single 290 or 290X under water but if in CF under water I suggest a 1050W KM3 PSU. Whatever make (Seasonic, Corsair or XFX) - As long as it's a KM3 design.

 

[Galatian]

Yes they can where an XFX BEFX 750 to 850W KM3 can handle a single 290 or 290X under water but if in CF under water I suggest a 1050W KM3 PSU. Whatever make (Seasonic, Corsair or XFX) - As long as it's a KM3 design.

So should I take 1200W or 1500W for three GPUs? All the calculators tell me 1200 should be fine, but I don't trust them, when it comes to watercooling + OC. On the other hand it would be reasonable to assume next Gen GPUs would use less power even overclocked? Right now I'm leaning towards the 1200W suppl.

 

[Galatian]

Ah I'm just getting the Enermax Platimax 1500W...much cheaper then the Corsair unit, at least here in Germany. Reviews say it's a good PSU and I'm quite happy with theirs fans which I use for my Radiators.

I just ordered the Corsair AX1500i as I saw bad reviews on the Enermax especially calling out the bad 12V performance.