it really looks like the same 3 years old sensor from the 7d..
basically what does the digic5 do which digic4 could not?
"DIGIC 5 is now featured on Canon compact cameras like PowerShot SX40 HS to achieve a capture rate of 10.3 frames per second at full resolution in High-Speed Burst HQ, Full HD 1080p Videos and Intelligent Image Stabilization. The new DIGIC 5 processor is 6 times faster and creates 75 percent less noise than the DIGIC 4 processor.Designed to achieve new and advanced levels of image quality, DIGIC 5 analyses four times more image information to create each pixel, recording more detail and colour from a scene than ever before. Processing speed is also six times faster compared to the previous processor, efficiently managing the increase in scene information and simultaneously reducing the appearance of image noise by up to 75%.
DIGIC 5 Is used in the Canon EOS 650D/Rebel T4i/Kiss X6 (announced June 8, 2012 and available later that month)."