New PSP and old PSP thickness compared (Source: Joystiq)
New PSP hardware able to charge via a USB connection
On Wednesday morningâ€™s Sony E3 press conference, a lighter, slimmer and more power efficient PSP was revealed. It was also said that the new version of the PSP would feature quicker loading times, though Sony did not immediately detail the enabling technology behind this improvement.
Rather than an improved UMD drive, the new PSP features a new UMD caching feature that loads game data into on-board memory. The added RAM to aid loading is new to the upcoming hardware and is not found in the current PSP.
Photos captured during Joystiqâ€™s hands-on with the unit reveals the UMD Cache function is a feature of the PSPâ€™s new operating system. The UMD Cache function presumably can enable faster loading on all PSP game titles without any further work by developers. The demo unit at E3 operates using version 3.60 firmware.