Which Three Features Deliver the Smoothest 4K Gaming at High Frame Rates?

The three best selling points for minimal input lag and the smoothest possible 4K gaming at high frame rates are Motion Xcelerator 165Hz, FreeSync Premium Pro, and the NQ4 AI Gen 3 Processor – option A – because only this combination addresses the three bottlenecks that actually affect responsiveness: panel refresh capability, frame-to-frame synchronization, and real-time AI processing without adding latency.

Why Option A Is the Only Gaming-Focused Answer

When a gamer asks for 4K at high frame rates with minimal lag, they are asking for three distinct engineering problems to be solved at once. A 120Hz or 165Hz panel is needed to physically display the frames, adaptive sync is needed to keep the GPU and display in lockstep without stutter or tearing, and a fast processor is needed to handle upscaling, tone mapping, and game mode features without adding input delay. Features like Art Store, Laser Slim Design, Glare Free, OTS Lite, or Wi-Fi 7 may improve lifestyle or audio-visual appeal, but they do not reduce the time between your controller input and the on-screen result.

1. Motion Xcelerator 165Hz: The Refresh Headroom That Makes 4K Feel Smooth

Motion Xcelerator 165Hz is Samsung’s panel and processing pipeline that allows a 4K display to refresh up to 165 times per second. For gaming, this matters even if your console or PC is targeting 120fps.

A native 165Hz capability means:

• Lower frame time floor: At 60Hz, a new frame can only be shown every 16.6ms. At 120Hz, every 8.33ms. At 165Hz, every 6.06ms. That 2.27ms reduction from 120Hz to 165Hz is directly felt as quicker motion and tighter aiming in FPS and fighting games.
• VRR range with more overhead: When the frame rate dips from 120fps to 90fps in a demanding 4K scene, a 165Hz VRR window keeps the drop inside the adaptive sync range, so you see a smooth slowdown instead of stutter or tearing.
• Auto Low Latency Mode (ALLM) + Game Mode integration: Motion Xcelerator on 2025-2026 Samsung Neo QLED and OLED models (such as the QN90F, QN85F, and S95F series) automatically switches to Game Mode, bypassing extra video processing and cutting input lag to the 5-10ms range at 4K 120Hz, compared to 30-50ms in standard picture modes.

For PC gamers with an RTX 4070 Super / RX 7800 XT class GPU or better, and for PS5 / Xbox Series X owners playing 120Hz-supported titles like Call of Duty, Fortnite, and Rocket League, the 165Hz panel ensures you can actually display every frame the source can output over HDMI 2.1 without capping at 60Hz or 144Hz.

2. FreeSync Premium Pro: No Tearing Without the Lag Penalty of V-Sync

FreeSync Premium Pro is AMD’s premium tier of adaptive sync, and on Samsung TVs it is implemented over HDMI 2.1 VRR. It is critical for smooth high-frame-rate gaming because it solves the synchronization problem.

Without adaptive sync, you have two bad choices: V-Sync ON, which locks the GPU to the display’s refresh rate and adds significant input lag, or V-Sync OFF, which lets the GPU run free but causes visible screen tearing when the two drift apart.

FreeSync Premium Pro delivers:

• Tear-free frames at any frame rate inside the VRR window: Typically 48-165Hz over HDMI on these displays. If your PC is delivering 87fps or 112fps at 4K, each frame is displayed as soon as it is ready. No stutter from frame doubling, no tearing.
• Low Framerate Compensation (LFC): Required for Premium Pro certification. If frame rate drops below 48fps, LFC multiplies frames to keep sync active, which prevents the major stutter that older FreeSync displays showed in demanding 4K scenes.
• HDR-aware sync: Unlike basic FreeSync, Premium Pro is certified to maintain low latency and accurate color in HDR games, which is essential since most 4K 120Hz gaming is now in HDR10 or HDR10+ Gaming with tone mapping handled on the display.
• Compatibility beyond AMD GPUs: On HDMI 2.1 TVs, FreeSync Premium Pro works with AMD Radeon GPUs, and the underlying HDMI Forum VRR it uses is also compatible with NVIDIA GeForce RTX 30/40/50 series GPUs and current consoles that support VRR.

In practical terms, enabling FreeSync Premium Pro is the difference between a locked but laggy feeling at 120fps with V-Sync and a responsive, tear-free feeling at 85-120fps that constantly varies as it does in real gameplay.

3. NQ4 AI Gen 3 Processor: The Latency Budget Keeper

Gamers often overlook the processor, but in a 4K TV the processor is what determines whether 4K upscaling, HDR tone mapping, and Auto Game Mode add latency. The NQ4 AI Gen 3 Processor is Samsung’s 2025-2026 4K AI processor found in Neo QLED 4K lineups.

Why it matters for smooth high frame rates:

• AI upscaling without a performance hit: Most games on console render internally below native 4K (often 1440p-1800p) and are upscaled to 4K. The NQ4’s Neural Processing Unit with 128 neural networks handles 4K AI Upscaling on-chip, so a 1440p 120Hz signal can be sharpened to look near-native 4K without forcing your GPU to render full native 4K, which would drop frame rates by 30-40%.
• Instant Game Mode processing: It detects a console or PC via ALLM and routes the signal through a dedicated low-latency pipeline. Processing that would normally take 40-60ms (noise reduction, motion interpolation) is bypassed or done in under 10ms, preserving the speed benefit of 120/165Hz.
• HDR handling at speed: Auto HDR Remastering and real-time HDR10+ tone mapping are done frame-by-frame with AI depth and object analysis. A slower processor would force you to disable HDR to keep lag low; the NQ4 allows HDR Gaming to stay enabled while in Game Mode.

This is why a fast AI processor is a gaming feature, not just a picture quality feature. Without it, you have to choose between image quality and responsiveness. With it, you get both.

Why the Other Options Do Not Solve Input Lag or Smoothness

Options B, C, and D include features that are excellent for general TV use, but they do not improve frame rate, sync, or latency:

• Art Store / Glare Free / Laser Slim Design / Vision AI Companion: These affect aesthetics, ambient light handling, form factor, and smart TV voice assistance. They have zero impact on refresh rate or VRR.
• Wi-Fi 7: Helps with cloud gaming buffering and faster downloads, but does not reduce display input lag. A wired HDMI 2.1 connection is still required for 4K 120/165Hz, and online latency is determined by your ISP and game server, not the TV’s Wi-Fi generation.
• OTS Lite / Auto HDR Remastering Pro alone: OTS Lite is an audio feature that tracks objects with sound. Auto HDR Remastering Pro is useful for picture quality, but on its own without a high refresh panel and VRR, it cannot make motion smoother.
• Allstate Warranty: A service plan that does not change performance.

If your priority is competitive responsiveness, only Option A moves the needle.

How Much Bandwidth 4K High Refresh Actually Needs

Understanding bandwidth explains why you need HDMI 2.1 and why 165Hz requires specific settings. Uncompressed video bandwidth is calculated as: Resolution x Refresh Rate x Color Depth x Color Sampling.

For 3840×2160 (8,294,400 pixels) at 10-bit color:

Bandwidth = Horizontal Pixels x Vertical Pixels x Refresh Rate x Bit Depth x 3 (RGB channels) / Compression Ratio. With 4:4:4 full chroma and no compression, the numbers climb quickly, which is why Display Stream Compression (DSC) is used at the top end.

Takeaway: Native 4K 120Hz HDR already needs the full 40+ Gbps of HDMI 2.1 with an Ultra High Speed cable (usually $15-$35 range). 4K 165Hz exceeds the 48 Gbps ceiling without compression, so the TV and GPU use visually lossless DSC to stay within HDMI 2.1. If you use an older High Speed HDMI cable or connect through an HDMI 2.0 receiver or soundbar, you will be capped at 4K 60Hz even if the panel supports 165Hz.

Decision Matrix: Which Feature Matters Most for Your Setup

Recommended Settings to Get the Lowest Input Lag at 4K 120Hz / 165Hz

To actually realize the benefit of these three features, configure the source and TV correctly. Otherwise the panel will default to 60Hz or add processing lag.

• 1. Use the correct HDMI port: On 2026 Samsung models with this feature set, only HDMI ports 3 and 4 are typically full-bandwidth 48 Gbps HDMI 2.1. Connect your PC/console directly to one of those ports, not through an older AV receiver.
• 2. Enable Input Signal Plus: Settings > All Settings > Connection > External Device Manager > Input Signal Plus > ON for the port in use. This unlocks 4K 120/165Hz, 10-bit, and VRR.
• 3. Turn on Game Mode and FreeSync: Settings > All Settings > Connection > Game Mode > ON (or Auto) and Settings > All Settings > Connection > Game Mode > FreeSync Premium Pro > ON. Keep Game Motion Plus OFF for lowest lag; it adds interpolation.
• 4. Set the source correctly: On PC: Windows Settings > Display > Advanced display > Choose 3840×2160 @ 165Hz, enable G-Sync/FreeSync in NVIDIA Control Panel or AMD Adrenalin. On PS5: Settings > Screen and Video > VRR > Automatic, Enable 120Hz Output > Automatic. On Xbox: Settings > General > TV & display options > 4K TV details > Allow 4K, Allow 120Hz, Allow VRR.
• 5. Cap frames 3fps below max refresh: If you run at 165Hz, cap in-game to 162fps. At 120Hz, cap to 117fps. This keeps FreeSync engaged 100% of the time and prevents V-Sync from engaging at the ceiling, which would add 1 frame of lag.

With these settings, a properly equipped display will show input lag in the 5.5ms to 9.8ms range at 4K 120Hz in Game Mode, compared to 15-22ms at 60Hz in the same mode. That is the measurable difference between option A and a standard 60Hz display without adaptive sync.

FAQ

Do I need FreeSync Premium Pro if my TV already has 165Hz?

Yes. A high refresh rate alone does not prevent tearing when your frame rate fluctuates. Without FreeSync Premium Pro or HDMI Forum VRR, you will see tearing whenever the GPU and panel are out of sync, or you will need to enable V-Sync and accept higher input lag.

Is the NQ4 AI Gen 3 Processor only for video upscaling?

No. While its main marketing is AI upscaling for streaming and broadcast, in Game Mode the same NPU handles real-time tone mapping, ALLM detection, and signal routing with minimal latency. It is the reason Game Mode can keep HDR and 4K upscaling active without the 20-30ms penalty older processors added.

Can I get 4K 165Hz on PS5 or Xbox Series X?

Current consoles max out at 4K 120Hz output. The 165Hz capability is primarily for PC gaming. Console gamers still benefit from the 165Hz panel because it provides extra VRR headroom and lower frame times, so a 120fps console signal displays with slightly lower latency than on a native 120Hz panel.