Oooh looky someone snagged a pic of the HD 5200 and posted it online just 2.5 hours ago. Speak of the devil (kinda).
P1080612_678x452.jpg

On the left of the image you have the Lynx Point chipset. In the center you have the CPU. Immediately to the right of the CPU, that smaller chip is the dedicated VRAM. Amount/speed/type is unknown. Also notice the whole thing is soldered directly to the motherboard.