Which laptop is best for working with 3d and vfx softwares?

Which laptop is best for working with 3d and vfx softwares?

Added (1). Hi guys. I'm planning to buy a new laptop for me. Well i'm a 3d artist and interior designer. I use softwares like maya, 3ds max, cinema 4d, zbrush, real flow, vue, vray, photoshop, after effects etc etc.So which laptop is suitable for working with these softwares. Ryt now 3 laptops are in front of me, when i searchd via online.
Dell precision M6800, Lenovo y70 and macbook pro 15 retina eye. Which one is better. Or suggest any other.
waiting for your favorable response and suggestions

GT80 Titan from MSI