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<p>Most <a href="page.php?w=graphics_card">video cards</a> manufactured since about 1998 and most <a href="page.php?w=Portable_media_player">media player</a>s support hardware overlay.</p>

<p>The overlay is a dedicated buffer into which one app can render (typically video), without incurring the significant performance cost of checking for <a href="page.php?w=Clipping_%28computer_graphics%29">clipping</a> and overlapping rendering by other apps.  The framebuffer has hardware support for importing and rendering the buffer contents without going</p><p>
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