If you have the current bios A10 or later yes. Older systems will require a bios update.
The A10 bios is here and on the XPS 8700 page here.
* Download/Save the file to the windows desktop
* Before running A10, I would install the prior Bios in order
* Disconnect any external hard drives, keys, printer, scanner, etc. You only want the USB mouse, USB keyboard, LAN, monitor connected
* Run the executable from Windows
* Allow the system to complete the installation and restart automatically. Do not force a restart or power off
NEW thread started to discuss XPS 8700 Nvidia GTX video card upgrades
Place holder for new thread to discuss XPS 8700 AMD video card upgrades
We and Nvidia are looking into the issue, but understand, we only "test/validate" those video cards in my list. Our warranty does not cover non-OEM video cards NOT on our list. Ultimately, it will be up to the XPS 8700 Team and our Legal Team to decide if Dell is going to allocate resources to fix an issue with non-validated, non-tested 3rd party hardware. All I can do is funnel the data to them. Below are the Dell validated/tested OEM video cards for the XPS 8700 and our 460w power supply =
8MXMJ Nvidia GeForce GTX750Ti P123N, 2GB, DVI-I/DVI-D/mHDMI
TC2P0 Nvidia GeForce GTX745 M302N, 4GB, DVI-I/DP/HDMI
9YJWT Nvidia GeForce GT720 M211N, 1GB, VGA/DVI-D/HDMI
FPDH3 Nvidia GeForce GTX660 D15P2-40 V2, 1.5GB, DVI-I/DVI-D/DP/HDMI, (Win 8)
2CHCY Nvidia GeForce GTX660 D14P2-40, 1.5GB, DVI-I/DVI-D/DP/HDMI, (Win 8)
8C3R5 Nvidia GeForce GTX650Ti P122N, 1GB, DVI-I/DVI-D/mHDMI
9168H Nvidia GeForce GTX645 OHGA4/M301N, 1GB, DVI-I/DP/HDMI
R5H2D Nvidia GeForce GT635 M210N, 1GB, VGA/DVI-D/HDMI
9KYFK AMD Radeon R9 270 RD14D-P1-70, 2GB, DVI-I/DVI-D/DP/HDMI
WNMHJ AMD Radeon HD8870, 2GB, DVI-I/mDP/mDP/HDMI
51NCR AMD Radeon HD7570 M209A, 1GB, DVI-I/HDMI (Win 8)
Poster Tim617 states that the GTX 1070 worked in his XPS 8700 system. Apparently, he used an alternative power supply. He reportedly encountered a crash at some point, possibly driver- or heat- related. However, his system got past POST and into the operating system and ran some games before it crashed. Thus, the existing system BIOS evidently presented no barrier.
He states that his system BIOS is version A11. He further states that "...the PC seems to only crash when I change the resolution at the home screen of elite dangerous but does [not] crash on any other game so idk it must be a glitch with the game itself."