The following¬†information comes from IGN……

– two 266MHz ARM11 CPUs
– 133MHz GPU
– 4MBs of dedicated VRAM
– 64MBs of RAM
– 1.5GBs of flash storage
– 3DS’ GPU has been named DMP’s PICA200, which has a maximum processing speed of roughly 200MHz
– expand memory using SD slot

Link