Which exact model of P50? And got any specs on 17-J111TX? The HP website is hopeless with their specs as they're not as foretelling with it as others.
Note: After some finding, HP's nVidia is GT-740m vs Toshiba GT-745m... I'd go with Toshiba as my experience has taught me that their product is far more reliable than HP... I have had use HP for many years and the last laptop that replaced HP was a Toshiba and it changed my perception, would recommend Toshiba over HP these days.
Also, despite Toshiba's display is 15.3" it is FHD (Full HD) vs HP's 17.3" at HD 1600x900.
HP's usually are largely lackluster in their offerings these days, all they have is their brand name to carry them but pretty much not that great specs.