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i haven't seen anything much about #ryzen 2200G or 2400G and #freesync. i believe the vega supports it, but depends on the motherboard's implementation of the on-board video out. seems like it would be a good fit for the 30-60 FPS @ 1080p low/med framerates...especially for people buying but intending to upgrade to a dedicated in the future.
#asrock vaguely replied that it should work if the CPU supports it. i'd still love to hear from someone using it.