Which of these laptops would best run dayz?

I'm looking to get a new laptop and i want to be able to play dayz. Which of these laptop will run it the best and is the more expensive one good value for the extra cost?

http://www.pcadvisor.co.uk/reviews/laptop/3491474/dell-latitude-3440-review/

http://shop.lenovo.com/...-customize" class='ext_link'>http://shop.lenovo.com/...-customize

http://www.ebay.co.uk/...1075608511

http://www.currys.co.uk/...-pdt.html#

Gaming Laptops 1. ASUS G750JM ROG 17.3-Inch Laptop, Full HD (1920x1080) LED Display, Intel Haswell Core i7-4700HQ Processor (Quad-Core 3.4GHz), 12GB DDR3L 1600MHz Memory, 1TB HDD, NVIDIA Maxwell Core GeForce GTX 860M 2GB GDDR5, 802.11ac Gigabit Wireless, Bluetooth v4.0, USB 3.0, Thunderbolt, DP, Windows 8.1 64-Bit: http://www.amazon.co.uk/...00IKF2H12/

Gaming Desktop 1. CyberpowerPC Gamer Ultra GUA880 Desktop (Black/Blue): http://www.amazon.co.uk/...00I46DKF4/

Out of those four, I would go with http://shop.lenovo.com/gb/en/laptops/ideapad/z-series/z510/#tab-customize, best graphics card out of the four, all the other specs are the same or better than the other three.

Z510 if your up to decent gaming and editing.