Anyone know if gsync uses any cable bandwidth?
Freesync supposedly doesnt.
does gsync use bandwidth?
Re: does gsync use bandwidth?
Adaptive-sync uses zero additional bandwidth after the monitor sends its initial EDID/DisplayID table, relying on a timer in the GPU to know when a new frame can/must be sent.
G-sync sends trace amounts of data polling the display every time a new frame is ready. More bandwidth is lost just keeping the DisplayPort lanes empty while waiting for the ping-pong latency, but it's a drop in the bucket when the minimum frame interval is 6.9 ms (@144 Hz).
Adaptive-sync is an aesthetically better solution than G-sync's protocol layer (ignoring all G-sync features inside the scaler facing the panel), but neither the additional sub-millisecond polling latency nor the minuscule wasted bandwidth should be relevant or perceptible to a user.
G-sync sends trace amounts of data polling the display every time a new frame is ready. More bandwidth is lost just keeping the DisplayPort lanes empty while waiting for the ping-pong latency, but it's a drop in the bucket when the minimum frame interval is 6.9 ms (@144 Hz).
Adaptive-sync is an aesthetically better solution than G-sync's protocol layer (ignoring all G-sync features inside the scaler facing the panel), but neither the additional sub-millisecond polling latency nor the minuscule wasted bandwidth should be relevant or perceptible to a user.