I have brought this GPU a week back and I would like to say that I am really impressed with its performance. It is better then GTX680 stock and could outperforms Radeon 7970HD too.
The 2.5 slot heatsink design keeps this monster cool and I must say that the fans used by Zotac are silent.
Idle temp : 30-35 deg and Load temp : 80-85 deg

Only downside is that this gpu comes with very less accessories. Being a high end GPU, zotac should consider giving HDMI cable, some game coupons, etc

I bought this on recommendation by xbit labs. Set it up in SLI configuration on Z77 motherboard. Performance charts are available on the net. Difference between 670 SLI and 680 SLI is not that great considering price / performance ratio. SLI setup instructions are not so obvious and requires Nvidia website visit for guidance. Even though its factory overclocked does not heatup due to large heatsink cooling. Be prepared to spare 2 extra slots for this card is huge. Extended warranty total of ...

This is High end Value for Money GPU :

Pros :
Performs same or little better then Gtx 680 Out of the box .
When Overclocked Outperforms Gtx 680 by 5% .
5 year Warranty make sure to register after purchase .
Very Cool gpu Does not go above 63C full load with 99% Gpu usage .


Cons :
3 slot Cooler its a huge gpu hope u have enough space in cabinet.
Consumes bit more power then other gtx 670 .


Overall best bang for money if u thinking between Gtx 680 / 670 / HD 7970/7950 then this is best...

Amp edition gives same performance or 10 fps less than 680/7970 reference. If you are planning to over clock the other cards have more headroom. Only reason to buy this card is same performance as ati 7970/gtx 680 for 80$ cheaper price. Considering price is same as other two on flipkart I wouldn't go for this card.