That reminds me of a couple years ago when my GeForce 6800 GT died without any warning while I played Thief (3). That was a good card, I didn't absorb this suddenly loss to this day... :'-(

http://www.newegg.com/Product/Product.aspx?Item=N82E16814131670

I'd recommend this (it's basically a Radeon HD7850), it's a very good hardware manufacturer (and the card is very solid)

http://www.guru3d.com/articles-pages/asus-radeon-r7-370-strix-review,1.html (review of an Asus-made card of the same type)

I already ordered the 750 Ti :( But thanks for the suggestion!

No problem! Hope it works out well for you :)

750 ti.. ehhhh.

290, 380, 390 or 970 is the parts to get, depending.

Interesting point -- I suppose more carefully worded it should say: "The 900 series supports all currently known and revealed DX12 features." Of course it's not impossible that more advanced features will be revealed in the future, and they might require new hardware. But realistically, I doubt there'll be any dramatic new features which won't work on one of these GPUs, at least not until the next DX generation ( or whatever might replace DX entirely ).
Er, the 750 ti is a great card, and it sounds like it will suit OPs needs just fine. A 970 will easily cost twice as much or more. There's other factors to consider, aside from just raw processing power, especially when you're not planning to play all the latest AAA games.

I had read an interesting article in this regard which at least seemed to imply that there is some level of "marketing" to some of those claims. The 750 Ti does seem to be a quite technologically advanced choice for that price.
http://www.extremetech.com/extreme/207598-demystifying-directx-12-support-what-amd-intel-and-nvidia-do-and-dont-deliver

actually you know what, I take back what I said, you're totally right. next year right beastly GPUs will show up and if he might be real happy about that 750ti if he needs a new gpu next year. yeah. you're right.

He specifically said he doesn't need anything that strong. All the ones you mentioned are great cards but also quite expensive compared to his budget of 200$.

well to each his own, and the 750ti isn't exactly bad. and it is might efficient. but it's generally better to spend a little more and get something capable. especially when better GPUs show up next year. it might be a situation of spending another 250-300 next year to play a good game in the works right now. but this year, it probably is wise to just get something more midrange.

Yes. All Kepler GPUs will support DX12, Nvidia already announced as much, so if that's a worry for anyone, let them rest assured.

Towards OP:
I like my GTX 760. It's been a solid card for me, but the major issue with "upgrading" to a Kepler card is that Nvidia is slowly phasing out bits and pieces of support for them, Gameworks being one thing, so maybe you should take a look at the 960 or 970?

Edited: Didn't realize you already ordered. Either way, enjoy your new card!

actually the 750ti is maxwell isn't it? yep. 750ti is 900 series in disguise. that's why the good efficiency.

I don't play many AAA games, and when I do I'm perfectly happy to turn down a few settings. There's really no point in me paying for power that I'm not going to use. I was actually perfectly happy with my 6870. Considered upgrading a few months back and decided I didn't really need to. Figured having a lower-end card would be better for game development too, as it would make it easier to optimize for lower-end systems.

Nope, that is not correct sir/madam. No beeping, no harm done to any hardware, you would simply get a warning message in Windows. I do this all the time as part of my job.

Take a look at the PCI-E specification if you are interested in the technicalities. When the card powers on, it negotiates with the motherboard how much power to draw. If external power is not connected, the card easily detects that, powers down most of the hardware components, boots just fine, and Windows warns the user with a nice pop-up alert. You can still use your computer, surf the net etc., but absolutely no 3D acceleration or performance.

But... if you connect power from a defective PSU, which doesn't supply what it says it does for example, that could of course harm the electronic components.

To the OP: Enjoy your new toy :)