This amount shouldn’t come as any surprise seeing this is the is what I have been saying for months. Ok, I am a little full of myself but the statement is true.

This info comes from a Wii U teardown. It also compares to the PS3

Wii U RAM

– Samsung K4W4G1646B -> DDR3 4Gbit, 1.5V, 800/933/1066 speed bins -> “DDR3-1600/1866/2133” data rate

– 256Mx16 would imply 16-bit I/O per DRAM.

– 17GB/s at most for main memory bandwidth

– Overall, 2GB of Samsung DDR3 memory running at a max speed of 17GB/s

Comparison

– 360: 22.4 GB/s + eDRAM for framebuffer
– PS3: 25.6 GB/s main memory BW + 22.4 GB/s graphics memory BW, no eDRAM

Editors note

Both the PS3/360 are running about 512 worth or RAM.

I would also like to note that probably about 1 Gig is used for the GamePad

Link