I suggest you take the Samsung model. Its a good one apart from BENQ.
The reviews made by the buyers are also good when it comes to the SamSung model monitor. But since you have a 560 GTX Ti , it wouldn't hurt to get a better monitor, but if it suites your budget then its okay. The Samsung B2030 would be a nice choice.
The first one is better. Similar specs, but 1080 as you pointed out and has a better dot pitch. (pixels are closer together, which is a good thing.) Its out of stock, so you might need to find a similar one.