Sony PSP2 GPU will be the PowerVR SGX55x

PowerVR SGX Demo

PowerVR SGX55x is the new GPU family of Imagination Technologies. PowerVR SGX55x has unified shaders, supports OpenGL ES 2.0 and Direct3D 9/10. PowerVR SGX55x targets all mobile devices such as smartphone and MID, navigation and DTV/STB products, or netbooks, laptops and games consoles.

All PowerVR devices are Tile Based Deferred Renderers (TBDRs):

PowerVR SGX Tile Based Deferred Renderer

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