I'll +1 Sunius and add two things... firstly, register your details with them within 30 days of purchase and that becomes a five or ten year warranty. Secondly, if you can stick another £20 on your budget, you could grab a GTX670, which is an absolutely amazing card for the money. Near enough the same speed as GTX680, but £100 cheaper. It will play Far Cry 3 1080p AA and ultra (nothing less than a GTX670 will be consistently above 30fps in that situation). But if £250 really is the absolute limit, GTX660 Ti won't disappoint.