VRAM in the 190 that's adequate to run 307,200 pixels @ 2bit GS or 8bit Color would be woefully inadequate to run the CE's 480,000 pixel resolution. 156.25% more pixels probably translates into 4bits (or less?) of color depth on that gorgeous screen.
Dunno though, EveryMac's info is equivocal on the subject, you'd need to look into the DevNotes to find out what the real story might be.
The Active Matrix Grayscale LCD from the 5300 would be a much better choice, IMHO.
p.s. EveryMac and LEM are at odds on the 5300's LCD spec, imagine that! LEM says 4bit/Active Matrix, EveryMac says 4bit/Passive Matrix . . .
. . . I'm not cracking the .PDFs for this one, my money'd be on EveryMac.
The more closely I look at LEMspec, the flakier it seems to get.
p.p.s. Couldn't resist . . . :
EveryMac it is, LEM's full of beans once more.DevNote says 5300 = Passive (FSTN) 4bit Grayscale LCD
Corrections above will be in BLUE this time.