Sandra Processor Arithmetic
Sandra Memory Bandwidth
The XPS 15's 2,133MHz DDR4 memory clearly wins out against the DDR3 in the Asus ROG G750JZ, offering 25-30 per cent more bandwidth, but is behind the MSI GS40 6QE Phantom, which has similar memory.
Processor arithmetic is a little behind too, with superior Dhrystone than the Asus ROG G750JZ, but inferior to the MSI, and the lowest Whetstone of the three, albeit not by much.
@James Morris, did Dell confirm support for eGPU enclosures through that Thunderbolt 3.0 port? Merely having the port isn’t enough, system BIOS level support is also needed for it work.