"XGA" redirects here. For the video mode, see XGA (resolution).
Not to be confused with Enhanced Graphics Adapter or Extended Video Graphics Array.
Extended Graphics Array (XGA)
Release date
1990; 34 years ago (1990)
History
Predecessor
8514/A
Successor
XGA-2
The eXtended Graphics Array (usually called XGA) is a graphics card manufactured by IBM and introduced for the IBM PS/2 line of personal computers in 1990 as a successor to the 8514/A. It supports, among other modes, a display resolution of 1024 × 768 pixels with 256 colors at 43.5 Hz (interlaced), or 640 × 480 at 60 Hz (non-interlaced) with up to 65,356 colors.[2][3] The XGA-2 added an 800 × 600 65,356 color mode and 1024 × 768 60 Hz non-interlaced.[2]
The XGA was introduced at $1095 with 515K VRAM and additional $350 for the 512KB memory expansion (equivalent to $2600 and $820, respectively, in 2023).[4][2] As with the 8514/A, XGA required a Micro Channel architecture bus at a time when ISA systems were standard, however due to more extensive documentation and licensing ISA clones of XGA were made. XGA was integrated into the motherboard of the PS/2 Model 95 XP 486.[3]
An improved version called XGA-2 was introduced in 1992 at $360, worth $780 in 2023 dollars.
XGA gives its name to the resolution 1024 × 768, as IBM's VGA gave its name to 640 × 480, despite the IBM 8514/A and PGC cards respectively supporting those resolutions prior to the eponyms.
^"XGA Logo". Paul Rand Foundation. Retrieved 25 September 2021.
^ abcJon Peddie (8 April 2019). "Famous Graphics Chips: IBM's XGA. The End of an Era". IEEE.org.
^ abJulio Sanchez; Maria P. Canton (2003). The PC Graphics Handbook. Boca Raton: CRC Press. ISBN 9780203010532.
^1634–1699: McCusker, J. J. (1997). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States: Addenda et Corrigenda(PDF). American Antiquarian Society. 1700–1799: McCusker, J. J. (1992). How Much Is That in Real Money? A Historical Price Index for Use as a Deflator of Money Values in the Economy of the United States(PDF). American Antiquarian Society. 1800–present: Federal Reserve Bank of Minneapolis. "Consumer Price Index (estimate) 1800–". Retrieved 29 February 2024.
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Global Information![The IBM internal XGA logo, designed by Rand Paul[1]](http://upload.wikimedia.org/wikipedia/commons/thumb/3/33/XGA-1992.svg/100px-XGA-1992.svg.png)