Quick Answer

FreeSync Premium, ELMB Sync, and smooth frame pacing work together to eliminate tearing, reduce ghosting, and stabilise frame delivery respectively. Understanding when to use each feature and how they interact lets you extract the best possible image quality from your gaming monitor without compromise.

FreeSync Premium: What It Adds Over Standard FreeSync 🔧

AMD's FreeSync has three tiers. Standard FreeSync has no minimum refresh rate requirement and no mandatory LFC (Low Framerate Compensation). FreeSync Premium requires at least 120 Hz within the VRR (Variable Refresh Rate) range and mandates LFC, which multiplies frames when the GPU drops below the monitor's minimum VRR threshold to keep adaptive sync active. FreeSync Premium Pro (formerly FreeSync 2 HDR) adds HDR requirements on top of Premium.

ELMB Sync: Strobing Without Sacrificing Adaptive Sync 🖥️

Electronics backlight strobing has been available on gaming monitors for years, but historically required disabling adaptive sync (FreeSync or G-Sync). ELMB Sync, introduced on ASUS monitors, synchronises backlight strobing with the adaptive refresh cycle, allowing both to operate simultaneously. The strobe fires in the dark interval between each adaptive-rate frame delivery, eliminating the timing conflict. The result: your monitor gets tear-free frames from FreeSync Premium and sharp motion from the strobe, with no mode switching required. The compromise is brightness reduction of 30 to 50% due to the dark intervals.

Smooth Frame Pacing and Why It Matters Alongside VRR 🎮

Even with FreeSync active, poorly paced frames cause visible micro-stutter. Frame pacing refers to the consistency of time intervals between consecutive frames. If your GPU delivers frames at irregular intervals (15 ms, 3 ms, 12 ms, 7 ms) instead of evenly (all 6 ms at 165 fps), each frame arrives at a different rhythm and the motion appears stuttery despite a high average frame rate. Smooth frame pacing is primarily a driver and game engine responsibility. Enabling in-game vsync to buffer frames before sending them to the display helps on some titles. NVIDIA Reflex and AMD Anti-Lag reduce GPU-side queuing that causes irregular frame delivery.

TIP

Cap Your Frame Rate 3 to 5 fps Below Maximum ⚡

Running your GPU at maximum unlimited frame rate causes driver-level frame pacing issues because the GPU queue overflows. Capping in-game frame rate at 245 fps on a 250 Hz monitor (or 160 fps on a 165 Hz monitor) gives the driver headroom to deliver frames evenly spaced rather than in bursts. This small cap produces smoother perceived motion than uncapped output, even though the average frame rate is technically slightly lower.

FAQ

Does FreeSync Premium require an AMD GPU?

No. FreeSync Premium is based on the open VESA Adaptive Sync standard embedded in DisplayPort and HDMI. NVIDIA GPUs support it through G-Sync Compatible mode, enabled in NVIDIA Control Panel. Performance is equivalent to native AMD FreeSync for most games.

Can I run ELMB Sync and FreeSync Premium together on any gaming monitor?

Only on monitors specifically certified for ELMB Sync (or equivalent combined strobe-plus-VRR technology). Check the spec sheet for explicit ELMB Sync support. A monitor that only lists ELMB without the Sync designation requires choosing between strobe and adaptive sync.

Does smooth frame pacing affect online competitive games differently from single-player?

Yes. In online multiplayer titles, network jitter introduces CPU spikes that disrupt frame pacing more than in single-player. Enabling NVIDIA Reflex or AMD Anti-Lag specifically addresses this in supported titles like CS2, Valorant, and Apex Legends, reducing the latency and pacing variance caused by server communication timing.

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