I've been happy with the value of my GTX1070. The G-Sync ASIC/FPGA board costs for a compatible VRR monitor? Extremely beyond my value/price range.
This is the right move for nVidia customers & hopefully we'll see HDMI 2.1 VRR in the future (maybe when they release 2.1 cards) on top of DisplayPort next week. https://www.anandtech.com/show/13797/nvidia-to-support-vesa-adaptive-sync-with-gsync-compatible-branding
VRR is very much becoming more of a mainstream thing (Xbox added it; DP & HDMI both include in latest version; more monitors are tweaking their panel driver - a cheap value-add if they can adapt). It's definitely one more thing we should all consider when thinking about frame pacing (and test for how we actually do during horizontal scene pans etc).
An added detail to account for when constructing timing heuristic. https://www.gdcvault.com/play/1025407/Advanced-Graphics-Techniques-Tutorial-The
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