On Mon, 10 Apr 2000, Toru Nishimura wrote:

> PMAGB-B (HX) is equipped with SFB which completely redefined the bottom
> line of 2D graphic standard.
> 
> There were variations of PMAGB-[DEFJ]_ for higher screen refresh
> frequency (72Hz and possibly the original). 

 I think you mean PMAGB-B[DEFJ].  Quoting my 1995 SOC on PMAGB-* cards: 

PMAGB-BA/BB	HX	8-plane color/grayscale 2D Smart Frame
			1280 x 1024, 72 Hz

PMAGB-DA/DB	PXG+	8-plane 3D, low- to mid-range
			1280 x 1024, 72 Hz

PMAGB-DC/DD	PXG+	8-plane 3D, low- to mid-range
			1280 x 1024, 66 Hz

PMAGB-EA/EB	PXG+	24-plane 3D, Z-Buffer, mid-range
			1280 x 1024, 72 Hz

PMAGB-EC/ED	PXG+	24-plane 3D, Z-Buffer, mid-range
			1280 x 1024, 66 Hz

PMAGB-FA/FB	PXG	96-plane 3D, high performance
		Turbo+	1280 x 1024, 72 Hz

PMAGB-JA/JB	TX	24-plane true color frame buffer
			non-accelerated
			1280 x 1024, 72 Hz

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +