Something like the DELL XPS line or the Clevo P650RE may serve you well, the Clevo can fit up to 64G DDR4 RAM, GTX 1070 and a 4K screen. The only thing it does

Something like the DELL XPS line or the Clevo P650RE may serve you well, the Clevo can fit up to 64G DDR4 RAM, GTX 1070 and a 4K screen. The only thing it doesn't have is the battery life of the MBP, but if you want raw power, you may be plugged in most of the time anyway.