AX,GS,TX or HX from corsair(or seasonic X series)?
No RM series PSU selling in my country,and any config will still land me with a 7790 max as the6XXW, 7XXW and the 8XXW w only differs by a few(less than 10 between the 6XX and 8XX) dollars,so i see no point in 6XXW/7XXW for me in this senario.Any option still result in me getting a 7790 max.Which is a low end card.
Maybe in the future i will cfx/sli 780/290X instead then.But is 850W enough?also which PSU i mentioned is capable of doing that?Or is a 1050/1200W one necessary?I an planning to get a 6670 in all situations so that money is saved and when i upgrade that card can be thrown into an i3 HTPC.Which have a fsp hexa 500W incapable of running most graphics cards.
The other stuff that will be running in this ghetto rig will be:
Rampage IV Black Edition or Extreme(need 8 dimms,and high end vrm,will run from dawn to dusk everyday and even 24/7 during june/november and december)
4820K
hyper 212X
8GB RAM(cannot upgrade yet in the moment due to some private reasons)
840 (vanilla) 120GB SSD
1 3TB 7200rpm,1 500GB 7200rpm
No case-will drill holes(no standoff,just countersink screw into the plugs,loose of course,will not cut PCB) on a concrete wall to mount the parts directly and separately onto the wall.
850W should be sufficient for 2 way SLI/CFX unless you are doing really extreme overclocks, so it's definitely enough. The problem with getting a PSU with way too much wattage is you do sacrifice efficiency, and this can add up if electricity is expensive and you are running the system 24/7.
If you cannot afford to wait for the RM Series, I would go for the AX850 then. The wattage that PSUs use is the output wattage, not the wattage from the wall, so all the Corsair/Seasonic PSU should be able to handle it. The GS series does not have modular cabling, so you will end up with a lot of excess cabling that is messy and just not worth it in my opinion.
The 7790 just doesn't match up well with the rest of the system in my opinion, you really want something higher end if you want to be doing gaming. If you are 100% sure you can upgrade soon, I suggest you get the 6670 first, live without real gaming for a while, and then move the 6670 to your HTPC and get a proper high end GPU. The 7790 may be usable for now, but it's not good enough for decent gaming, and it's probably a bit too expensive to buy it just for an HTPC.
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