Casio Power Graphic series

GX-era Series (Pre Power Graphic)

They are not technically "Power" Graphics, however share a lot of similarities with modern (after 1995) models.

6000 Series

fx-6000G	fx-6500G
GX?	GX?
?KiB	?KiB

7000 Series

fx-7000G	fx-7400GA	fx-7400GB
GX935	GX?	GX?
?KiB	?KiB	?KiB

8000 Series

fx-8000G	fx-8500G
GX969	GX?
?KiB	?KiB

7300 Series

LX era

fx-7300G
LX377
?KiB

7400 Series

ZX era

fx-7400G	fx-7400G PLUS (✔)	fx-7400G PLUS-GY (✔)
ZX930	ZX942	ZX942
RAM:?KB	RAM:32KB	RAM:32KB
ROM:?KB	ROM:256KB Ver. 1.1 SUM=43A5	ROM:256KB Ver. 1.1 SUM=43A5

GY era

fx-7400GII
GY???	GY???
?KiB	?KiB

7700 Series

LX era

fx-7700GE	fx-7700GH	fx-7700GB (✔)
LX375	LX394	LX387
?KiB	?KiB	?KiB

8700 Series

LX era

fx-8700GB	fx-8700G
LX388	LX??
?KiB	?KiB

9700 Series

LX era

fx-9700GE (✔)	fx-9700GH
LX370	LX395
?KiB	32KiB

ZX era

fx-9750G (✔)
ZX934
32KiB

GY era

fx-9750G PLUS (✔)
GY355
26KiB

fx-9750GA PLUS	FX-9750GII
GY360	GY362	GY???	GY???	GY???
32KiB	64KiB	?	?	?

9800 Series (Color)

LX era

CFX-9800G (✔)
LX392
32KiB

ZX era

CFX-9850G (✔)	CFX-9850G PLUS	CFX-9850Ga PLUS	CFX-9850GB PLUS (✔)
ZX933	ZX935	ZX???	ZX939
RAM:32KiB	RAM:32KiB	RAM:32KiB	RAM:32KiB

GY era

CFX-9850G PLUS	CFX-9850GC PLUS (✔)	CFX-9850GB PLUS	CFX-9850GB PLUS (✔)
GY???	GY356	GY357	GY359
RAM:32KiB	RAM:64KiB	RAM:64KiB (Memory Mod)	RAM:32KiB

fx-9860G (✔)	fx-9860G SD (✔)	fx-9860GII (✔)	fx-9860GII SD
GY365	GY363	GY495A	?
RAM:64KiB / 1.5MB Flash	?	?	?

9900 Series (Color)

ZX era

CFX-9950G	CFX-9950GB PLUS	CFX-9970G (✔)
ZX933	(ZX944?)	ZX936
64KiB	64KiB	64KiB

GY era

CFX-9950GB PLUS (we)
GY356
64KiB

Algebra

ZX era

FX 1.0	ALGEBRA FX 2.0
ZX947	ZX945
144KB RAM / 768KB Flash	144KB RAM / 768KB Flash

GY era

FX 1.0 PLUS	ALGEBRA FX 2.0 PLUS (✔)
(GY352?)	GY350
144KB RAM / 768KB Flash	144KB RAM / 768KB Flash