DisplayPort 1.3 includes support for variable refresh rate

During discussions by pcperΒ about AMD’s FreeSync, apparently the upcoming DisplayPort 1.3 spec includes provisions for variable refresh rate.

Originally included for the purpose of power management (lower Hz uses less power), this is also usable for tearing/stutter-smoothing in the same way as G-SYNC. Not all displays may support this feature, but may help make variable refresh rate more widespread.