its not close to the same battery power as the number of pixels is far greater for retina than HD on Fire HD Resolution: 1920 x 1200 vs 2048 x 1536, thats a fa

its not close to the same battery power as the number of pixels is far greater for retina than HD on Fire HD Resolution: 1920 x 1200 vs 2048 x 1536, thats a fair chunk more power 2304000 vs 3145728 pixels = 27% more battery drain