Upgrade Time - Coming from mini-ITX w/ GTX 760

CaptainPrivate

Honorable
Feb 13, 2014
31
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10,540
Hey guys!

Looks like it's time again for a bit of good old system upgrading. Right now, here's what I'm running:

CPU: Intel i7-4770
CPU Cooler: Noctua U12S
MOBO: MSI H97I-AC
GPU: EVGA Reference GTX 760
PSU: Seasonic M12II 620W
RAM: 2x8GB G.Skill Ripjaws X
Storage: 1x Samsung 840EVO 250GB SSD, 1x 2.5" 1TB Seagate HDD
Case: Rosewill Legacy W1

...and it's really a nice little system. I don't overclock, so the Noctua is there basically for longevity's sake. I've gathered a bit of a budget, though, and I really wasn't expecting to do a major upgrade (hence the ITX system), but things have been going better than expected recently. I plan on buying a few things that have definitely been decided on:

Case: Fractal Design Define R4
MOBO: MSI Z97S SLI-Plus
RAM: Another 2x8GB Ripjaws X

So, this is basically going to be a complete rebuild into an ATX mid-tower. Yes, I will be using all of that memory. I do an excessive amount of things like physics baking in Blender, and heavy rendering in AE; Blender eats everything I have right now without a second thought and starts caching to my HDD within minutes.

And I'll be getting a new GPU, but there's the problem. I was originally going to pick up a second GTX 760 and drop it in there, but I'm doubtful that a 620W power supply - even a Seasonic - could hold up that load, especially with both GPUs and the CPU going at full capacity during overnight renders. I think nVidia recommends 50A on the 12V rails; I can put out 48A (24Ax2) at most, and I don't really want to have this thing running at max capacity.

If you had this setup, what would you do in terms of a graphics upgrade? I could always replace and/or sell off my current PSU for a larger model, and have two 760s that would effectively be a Titan and be terrific at rendering jobs. A lot of people are recommending either a 980 or 970, but I can't even find one available, and is that really a better upgrade in terms of performance for the money, especially when I already have a single 760? Think in terms other than purely gaming here - while I do a lot of it, I'll also use as many CUDA cores in 3D rendering as I can possibly pack in there.

Opinions are appreciated! Thanks!


 
Solution
That seasonic is identical to the old Corsair HX 620 .
The Corsair was stable at over 700 watts of load , but that is the minimum for SLI GTX 760's, and if your psu is a couple of years old it would be risky to keep using it .


I would buy a GTX 970