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Displays Games

Standards Group Adds Adaptive-Sync To DisplayPort 82

Posted by Unknown Lamer
from the variable-framerate-considered-alright dept.
MojoKid (1002251) writes "Over the past nine months, we've seen the beginnings of a revolution in how video games are displayed. First, Nvidia demoed G-Sync, its proprietary technology for ensuring smooth frame delivery. Then AMD demoed its own free standard, dubbed FreeSync, that showed a similar technology. Now, VESA (Video Electronics Standard Association) has announced support for "Adaptive Sync," as an addition to DisplayPort. The new capability will debut with DisplayPort 1.2a. The goal of these technologies is to synchronize output from the GPU and the display to ensure smooth output. When this doesn't happen, the display will either stutter due to a mismatch of frames (if V-Sync is enabled) or may visibly tear if V-Sync is disabled. Adaptive Sync is the capability that will allow a DisplayPort 1.2a-compatible monitor and video card to perform FreeSync without needing the expensive ASIC that characterizes G-Sync. You'll still need a DP1.2a cable, monitor, and video card (DP1.2a monitors are expected to ship year end). Unlike G-Sync, a DP1.2a monitor shouldn't cost any additional money, however. The updated ASICs being developed by various vendors will bake the capability in by default."
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Standards Group Adds Adaptive-Sync To DisplayPort

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  • Re:It's a great idea (Score:5, Interesting)

    by wonkey_monkey (2592601) on Tuesday May 13, 2014 @04:08AM (#46987461) Homepage

    For example, if the display knows that the next frame is going to come at exactly X milliseconds in the future, then perhaps it could start transitioning all pixels to grey at time X - N, where N is the average time it takes for pixels to transition to grey, and then when the frame is received, it could then transition all pixels from grey to the next frame pixel colors faster.

    What's the reason for transitioning to grey? Is it to minimise the likely "distance" (time) to the new colour?

    Won't most pixels, most of the time, remain a similar colour in the next frame? I don't understand the ins and outs, but wouldn't you lose as much, if not more, as you'd gain?

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