I don't think so, it's quad channel and the XPS supports only DUAL channel memory.
Since it's an OEM rig, it could reject the RAM altogether.
Also depends on what config of the RAM are you taking since it's available in Kits.....
"Available in 4GB(1GBx4), 8GB(2GBx4) & 16GB (4GBx4) Quad Channel Package"
So what sort of a combo is going to work on that Dell mobo is really difficult to say.