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According to the white paper: http://www-support-downloads.sonymobile.com/lt22/whitepaper_EN_lt22_xperia_p.pdf, the GPU is Adreno 205 but when I go to this site: http://www.gsmarena.com/sony_xperia_p-4436.php, It stated MaliI-400MP
Which of this is true???
Nope,no Adreno.It is Mali 400 single core,the same gpu like on SGS II and III,but with one core not four.If you want to see the gpu manufacturer,just download Hardware info from the market,you will see everything you need.