am I ok using an evga supernova 750G2 with two cards in cross fire and i5 4690k @4,6ghz?
248471
I wouldn't suggest it. That rig would probably be okay with a single card but two is a stretch. The i5 4690k sucks down 88watts without overclocking, so you're looking at 110-120 watts from your CPU alone. As a rule, you usually want about 400-500 watts available for each card, 300 minimum - that way your system wont randomly shut off during intense gaming. 100+300+300 = 700 so you're already kinda stretching it. I'd suggest at least a 900-1000 watt power supply.
1980836
Absolutely! Every review I've seen says that 2560x1440 runs perfectly on it. As for crossfire, I assume you mean SLI? If so, then yes! Card is awesommeeeeee
404885
http://www.geforce.com/hardware/desktop-gpus/geforce-gtx-780-ti/specificationsyes you can. i am using two overclocked 780s fine. one TI will be fine
1492014
Single card you can get away with a 750, the card draws about 350-375 watt sunder load, according to a comparison to the 970 and 980 cards, I just was reading today. I personally overshoot to make sure my PSU isn't working very hard. Example I have a dual card setup and i use a 1300w PSU EVGA.
99320
I don't think you will have a problem if you have a recent CPU,motherboard etc, that has been made in the last 4-5 year's. I have a machine that is that old and I am running 2 monitors @ 2560x1600 with no problems running max settings. I do have them in crossfire (2 cards) but you dont get 200% increase from doing so. I think you will have zero problems for awile yet even with new games with this card. I haven't yet ;)
2254156
I am sorry I do not know the answer to your question. I will say I am liking this card and will end up getting another one to crossfire. Good luck.
455288
no, crossfire only works in its own performance class. IE. 77xx,78xx,79xx. also in a crossfire situation the faster card will run slower to match the other card. I recommend matching the cards exactly to prevent BSODS and any other weird instances.
250408
No doubts whatsoever, i run 2 cards with same cpu (k version) on a 950 corsair.
1241066
No your perfectly fine since this card is a low power consumption card. Now it depends on what kind of processor you have. If you have intel you may need to upgrade it. If you have an amd like a 4100 your perfectly fine. If you have that processor and gpu it only requires 240 watts
1097703
You can just use the two 8 pin PCIe power connectors. My GPU was clocked at 1080 GHz. I've read that there is another 290x Lightning, possibly distributed in Europe, that is clocked at 1050 GHz.
1492013
The power needed for the CPU should also be considered. I read somewhere that MSI recommended 500 watts for a system with 1 card. Since you are overclocking the CPU?, and the GPU?, I would recommend a 850 watt PSU at a minimum just to be safe and avoid power issues. Have fun!
1451441
I tried crossfire with 2 7870's gigabyte cards with a 850 watt thermaltake power supply and it wouldn't work. I recommend no less than good name brand 1000 watt power supply. However a 1200 watt would optimal.
2281941
I paired this card with a 400 watt power supply, and that's about as low as power supplies go. So I'd say you're safe with at least 400 watts.
1771855
I have the 650w version. It says on the box that could run two 75w graphic card and a 50w cpu. I have only one gtx 250 sli, with like 10 fans and several lights. It's running fantastic. However yours will require around 700w for two of those cards. I would recommend getting 750w for overclocking or even more expansion down the road. I'm jealous btw I'm sure that card is awesome.
785557
No... 450watts is a minimum... & a minimum of 600watts to CrossFireX or third monitor. I run 450 pushing a self-powered USB hub for add-on dohickeys like game pads, or e-sketch pad. It's a top of its class mid-level card... should push the new city on lower settings okay
1829225
No, you need a 2nd, exact same card, Sapphire 7870 gHz edition oc to crossfire
1286547
Yeah, you should be able to crossfire it with a different manufacturer's card as long as it's a 7970. The clock/memory speeds will be set to the same for both cards, but it should work fine.