Hi soshite,
The XPS One 2710 ships with both integrated and discrete graphic options.
Integrated (UMA) — Intel HD 2500/4000 Graphics sharing the system memory
Discrete — nVidia GeForce GT 640M with 2 GB GDDR5 memory
The following table provides the processors/integrated graphics combination.
XPS 2710 ships with 235W Power Supply Assembly which is not recommended to upgrade.
Please reply if you have any further questions.