Can this power supply handle two gtx 780 sli or do I need to get say a 1000w
1432262
The TDP for a GTX 780 is 250W. Unless you're running a LOT of hard drives or some cpu with a huge power draw, you should be able to use this power supply with power to spare. I think it's unlikely that the rest of your pc is using 250W. I am running a crypto mining system with 4 video cards (each with a TDP of 150W) with this supply and it's only pulling 700W from the wall. Let's assume about 15% efficiency lost to heat so.....that implies that the system itself is actually only drawing about 600W from the PSU.
1432263
It could, but that would be pushing the limits with no overclocking on anything.
1432264
It probably could but I think the minimum recommend PSU is 800w. I would get a 1000w PSU.
1432265
I would agree with other answers here. In general, power supplies operate at their highest efficiency at 50% load. This is why most enthusiasts would recommend getting more headroom than you really need. So let's say at idle or mild workloads (web surfing, email, etc) with 2 GTX 780 sli I can imagine the system running at about 400W. Therfore 800W would be a good minimum to be working with. However if you plan on overclocking the CPU or GPU's, you'll probably want a little more headroom. I'd recommend 850W unless you wish to get 1000 for future upgrades. Take a look a the EVGA G2 1000W which comes with a 10 year warranty before making a purchase. Highly recommended. I would agree with other answers here. In general, power supplies operate at their highest efficiency at 50% load. This is why most enthusiasts would recommend getting more headroom than you really need. So let's say at idle or mild workloads (web surfing, email, etc) with 2 GTX 780 sli I can imagine the system running at about 400W. Therfore 800W would be a good minimum to be working with. However if you plan on overclocking the CPU or GPU's, you'll probably want a little more headroom. I'd recommend 850W unless you wish to get 1000 for future upgrades. Take a look a the EVGA G2... » Read More I would agree with other answers here. In general, power supplies operate at their highest efficiency at 50% load. This is why most enthusiasts would recommend getting more headroom than you really need. So let's say at idle or mild workloads (web surfing, email, etc) with 2 GTX 780 sli I can imagine the system running at about 400W. Therfore 800W would be a good minimum to be working with. However if you plan on overclocking the CPU or GPU's, you'll probably want a little more headroom. I'd recommend 850W unless you wish to get 1000 for future upgrades. Take a look a the EVGA G2 1000W which comes with a 10 year warranty before making a purchase. Highly recommended. « Show Less
1432266
I believe the recommended minimum power supply for two GTX 780 cards is 800W. From personal experience though, it is always better to have a power supply that exceeds the recommended minimum. I think your best bet would be to go with the 1000W.
1854982
I have an Alienware Area 51 ATX Tower with a 1000 Watt Power Supply. I have no problem running this card. I would imagine if you ran two of these in SLI you would probably need a Nuclear Reactor! LOL
689232
it is. on the safe side i went with a Antec TruePower Quattro 850W Power Supply. this graphics card requires TWO 8pin adapter for ultimate performance capacity.
1093306
Officially, you should have a 500W power supply per each card, but I run four 780Ti's with this power supply with out an issue. Make sure you pay attention to what plugs are for GPU 1,2,3 and 4.
1591210
These will work together but you need Big power adopter and SLI cable to connect together both. They both cards need 8 pin power and power must come from same power supply.
646388
Considering that on average, while running newer games on Ultra settings, I'm only using a total of around 330 watts, I would say it'll probably work. On the other hand, there's literally no reason to use two of these in SLI; even with just one I can run any new game on the highest possible settings in every area and still get 60+FPS. The second card won't do anything.
35006
It is possible I think to run one card on a 460 supply, I have 1250 power supply and am running 2 cards.
1181173
it depends on your motherboard the total power needed but each GPU requires 300watts
1146004
It would need to a low power video card. The power supply is only 280W. At least 120W will be used by the CPU, Mobo and HD, and fans. I would be hesitant to put anything requiring more than 100W. This would be a good choice: ASUS GTX750TI-OC-2GD5 GeForce GTX 750. Bear in mind that cards with 3 DVI/VGA ports are rare.
560000
If you want to crossfire the gpu's then I would not recommend this power supply. If you are only running one gpu then this power supply would definitely suit your needs.
2062848
Here is where I start when I want to calculate the amount needed: http://www.extreme.outervision.com/psucalculatorlite.jsp (Although it looks like it doesn't have your CPU yet.) You'll probably be fine with an 800w power supply, although you'll need to make sure the rail(s) can handle the graphics card. Also, will you be (in the future) adding another graphics card? If so, I'd say get the 1300w one and then you won't ever have to worry about it.
246891
No, you would need something more like the Corsair RM850 to sufficiently power this dual GPU card.
1367285
It might, but for any SLI or CrossfireX, It would be best to get at least 1000w
1067926
I have my whole system hooked up to a 750 watt PSU except for my second card, which is hooked up to my 500 watt PSU. So if you're putting both cards on the 750 watt PSU then you should be fine.
2186324
Yes it would. It would support sli as well. I have a 780 (bought it way before 780ti got released) and I will throw in another 780 soon!
276396
No. SLI can only be viable with 2 identical cards. The most you might be able to do is dedicate the 780 to Physx alone..but it's hardly worth the price since many games still don't utilize Physx. I'd sell the 780 and put the money towards 2 of these. Or just sli 2 780 supers. The difference is probably nominal.
864980
I have a 600W power supply, and won't be getting SLI. I've cranked up everything to max in every game I've played on it, and it hasn't had any issues. 650W is plenty.