The Xbox 360 technical specifications describe the various components of the Xbox 360 video game console.
The console features a port on the top when vertical (left side when horizontal) to which a custom-housed hard disk drive unit can be attached in sizes of either 20, 60, 120, 250, 320, 500 GB;[1] and as of April 2015 all 2.5" SATA Hard Drives up to 2 TB,[2][3] the user can use the format option from system settings to utilize the new HDD. Inside, the Xbox 360 uses the triple-core IBM designed Xenon as its CPU, with each core capable of simultaneously processing two threads, and can therefore operate on up to six threads at once.[4] Graphics processing is handled by the ATI Xenos, which has 10 MB of eDRAM.[5][6][7] Its main memory pool is 512 MB[8] in size.