2x PSP (mid-range) or 3x/4x PSP (high-end flagship devices).
The PSP had a 333MHz single-core processor and 32MB of RAM. The PS3 possessed a 3.2GHz multi-core Cell processor and 512MB of split system/video RAM. 2x PSP (mid-range) or 3x/4x PSP (high-end flagship devices)