At launch, the Xbox 360 was priced at US$399 and the Core System was priced at US$299.
With the launch of the Xbox 360, Microsoft's online gaming service, Xbox Live went through a major upgrade, adding a basic non-subscription service, Silver, to its already established premium subscription-based service, Gold.
Backward compatibility is achieved through software emulation of the original Xbox.
While the first Xbox's graphics processing unit was produced by NVIDIA, the Xbox 360 uses a chip designed by ATI called Xenos.
The console features 512 MB of 700 megahertz GDDR3 RAM on a 128-bit bus.