what’s difference between SXGA and XGA laptop screens?
Posted by
admin 11 April, 2010
i\’ve a fujitsu lifebook model #7020d. My screen recently cracked on it and I’ve been searching ebay to find another screen to replace it. I found a listing for two different screens for this model which are SXGA and XGA. Which one is better? I was hoping to be able to get a newer glossy screen. How can I find compatible?
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Questions & Answers
SXGA 1280X1024 pixels. Xga is 1024X768 pixels SXGA is better
XGA, the Extended Graphics Array, is an IBM display standard introduced in 1990.
Today, it is the most common appellation of the 1024 × 768 pixels display resolution, but the official definition is broader than that.
It was not a new and improved replacement for Super VGA, but rather became one particular subset of the broad range of capabilities covered under the “Super VGA” umbrella.
The initial version of XGA expanded upon IBM’s VGA, adding support for two resolutions:
* 800 × 600 pixels with high color (16 bits per pixel, i.e. 65,536 colors).
* 1024 × 768 pixels with a palette of 256 colors (8 bits per pixel)
Like its predecessor (the IBM 8514), XGA offered fixed function hardware acceleration to offload processing of 2D drawing tasks.
XGA and 8514 could offload line-draw, bitmap-copy (bitblt), and color-fill operations from the host CPU.
XGA’s acceleration was faster than 8514′s, and more comprehensive in that it supported more drawing primitives and XGA’s 16 bits per pixel (65,536 color) display-mode.
XGA-2 added true color mode for 640×480, 1024×768 support for high color and higher refresh rates, and improved accelerator performance. All XGA modes have a 4:3 aspect ratio rounded to 8 pixels.
SXGA is an acronym for Super eXtended Graphics Array referring to a standard monitor resolution of 1280×1024 pixels.
This display resolution is the “next step” above the XGA resolution that IBM developed in 1990.
The 1280×1024 resolution is not the standard 4:3 aspect ratio, but 5:4 (1.25:1 instead of 1.333:1).
A standard 4:3 monitor using this resolution will have rectangular rather than square pixels, meaning that unless the software compensates for this the picture will be distorted, causing circles to appear elliptical.
There is a less common 1280×960 resolution sometimes unofficially called “SXGA-” (to avoid confusion with the “standard” SXGA) that preserves the common 4:3 aspect ratio.
SXGA is the most common native resolution of 15″ and 17″ LCD monitors.
An LCD monitor with SXGA native resolution will typically have a physical 5:4 aspect ratio, preserving a 1:1 pixel aspect ratio.
More information on XGA: http://en.wikipedia.org/wiki/XGA
More information on SXGA: http://en.wikipedia.org/wiki/SXGA
Hope this helps guide you
QD1956