You really need 330 watt Power Supply before you can really upgrade the GPU much beyond what you already have.
Agreed you will need the 330w PSU i had the 180w and bought the 330w from amazon for only $78. I just ordered the GTX 670 FTW edition that is pretty much the best card you can get for the x51. Next up would prob be the GTX 760 then R9 270x then GTX 660 ti.
It just depends on how the game or app uses the power. if both the cpu and gpu hit 100% usage you will have a problem with the 240w psu. The TDP of the 680 is 195 but i've seen where it can go over that in cases and depending on the ecu you have its prob anywhere from 55w-84w TDP. That's not counting all the other stuff using power. But most games are not going to max everything out at once. If it was me and didn't want to risk it i'd get the GTX 760 and call it good there a great card and pack a good bang for the buck.
Just my 2 cents
I fully loaded a GTX 680 on the stock 240w with no problems. So its looking the the 240w psu is closer to 340w. 195w is the max the card can pull. Lower asic rateing lower powerconsumption. My GTX 680 with a slight oc is pulling 173w pull load 100% So 240 - 173 is 67w. the i7 4770 with 1 thread is 92w and 100% is 158w. I can load the GTX 680 and the i7 locked at 3.9ghz no problem. System was tested for stability for 8 hours "Max i had time for" and had no issues. So thats 173w and 158w 331w that i know im getting Not having any issues with throttling or stability. Now factor in the wifi card, dvd rom, fans and a mouse "My g19 gets most of the power from a ac adapter." That sould be right at the 340w range
That's good to know But if all that is true, not saying its not i wonder why these guys couldn't get it to be stable?
I originally had the 180w psu and it was garbage lol i overclocked my card at that time was a gtx 645 didn't raise the voltage at all and it would crash a lot on certain games. Bought the 330w psu and the problem went away. I wonder how much power I can get from the 330w psu? Because if your able to get a 680 to work with the 240w and a i7 4770, I wonder what the best card that the 330w can power? I really want a 780 lol and there's some good deals on them right now. I plan on buying a i7 3770T cpu, it's a ultra low watt cpu only 45w to allow a lot of power to the gpu.
Are you still only using the 240w or do you now have a 330w?
Your post makes me wonder if i should push the limits more then a GTX 680.
You won't be able to use a 780 with the stock power brick, no way.
tappin from my neXus 5