I was reading about the new GTX 750Ti and it seems to offer ok performance for €160 in Belgium. This is my 2 year old setup: GTX 560 i5 2500k (not OCd) 8 gigs RAM and I may be looking at a new graphics card if it would be worth it. Is it worth to upgrade to a GTX 750Ti or something else reasonably priced, or would I be better off waiting? Would upgrading bottleneck my CPU (too much)?
The cards offer about the same level of performance, but the 750Ti uses a lot less power. Your CPU is a match for any single graphics card on sale now. A decent upgarde would be a 760 or better. Or wait till the more powerful Maxwell GPUs arrive.
The GTX 760 will completely outclass your current card. A cheaper option would be a GTX 660. The X50 cards are basically entry level gaming cards. Going up one level just from the X50 to a X60 gives a huge performance increase.
Budget cards are budget cards, they don't increase in power as much from generation to generation. Also the 750ti is not really increase in power, its a more efficient card. It offers similar power to the prior gen GTX 650's, but the GTX 750 does not require a 6 pin pci-e power connector like your old card does now. It makes it a great card to drop into any POS computer to get some decent gaming performance.