Updated 9/23/26
How many Frames Per Second can the human eye see?
You may wonder what happens if you’re watching something with a really high FPS rate. Are you actually seeing all those frames that flash by? After all, your eye doesn’t move as fast as 30 motions per second.
The short answer is that you may not be able to consciously register those frames, but your eyes and brain may be aware of them.
For example, take the 60-frames-per-second rate that many have accepted as the uppermost limit.
Some research suggests that your brain might actually be able to identify images that you see for a much shorter period of time than experts thought.
For example, the authors of a 2014 study out of the Massachusetts Institute of Technology found that the brain can process an image that your eye sees for only 13 milliseconds — a very rapid processing speed.
That’s especially rapid when compared with the accepted 100 milliseconds that appears in earlier studies. Thirteen milliseconds translate into about 75 frames per second.
Source: HealthLine
{Note: Max Frame Rate set to just above the speed of the human maximum processing speed of 75 frames per second (Example: set to 85fps) can produce a more steady frame rate and cooler running graphics card as it does less work with no visual loss.)
G-Sync, FreeSync and V-Sync
Both G-Sync and FreeSync absolutely matter for PC gaming. They are Adaptive Sync technologies that eliminate screen tearing and stuttering by matching your monitor’s refresh rate dynamically to your graphics card’s frame rate. They provide a vastly smoother experience than traditional V-Sync. Adaptive-Sync was introduced by Nvidia as G-Sync. AMD also added FreeSync to provide Adaptive-Sync for their cards.
To get the absolute best out of G-Sync, you are generally recommended to cap your FPS just below your monitor’s maximum refresh rate (e.g., capping at 141 FPS on a 144Hz screen).
Leaving G-Sync on won’t cause any harm, running games beyond the maximum refresh rate of your monitor will disable G-Sync, meaning that if you’re playing an easier to run game there is likely no benefit to using it.
V-Sync enabled could eliminate tearing, but causes increased lag and stutter.
AMD
The best global AMD Adrenalin settings for gaming focus on minimizing input latency, enabling adaptive sync, and turning off intrusive or unstable enhancements.
Most common cause for game stutters with AMD
In AMD Software: Adrenalin Edition, Radeon Chill, Enhanced Sync, and corrupted Shader Cache data are the settings most likely to cause stutters and frame-time spikes in games. If stutters still occur try the following.
• Turn off FreeSync on fixed-refresh TVs.
• Use exclusive fullscreen where possible.
Most AMD users report improvement, but may need trial-and-error with VSync and FreeSync combinations.
Note: If in high Aces High, Replace the AMD Drivers with prior version to remove conflicts with DX11.
Top open AMD Adrenalin software
1) Open AMD Software: Adrenalin Edition,
2) navigate to the Gaming tab, select Graphics
3) set your profile to Custom
| Features | Performance settings |
|---|---|
| Radeon Anti-Lag / Anti-Lag 2 | Reduces input lag by timing CPU work just before GPU rendering. Turn this on for faster response times in fast-paced games. Enabled helps decrease input latency; if a game has native Anti-Lag 2 support in its own menu, enable it there instead. |
| Radeon Chill | Dynamically caps your frame rate based on your movements. Set the minimum and maximum FPS to lower power usage and reduce heat on compatible Disabled globally or set per-game if you want to cap your frame rate just below your monitor’s max refresh rate to keep FreeSync active. |
| Radeon Boost | Dynamically lowers resolution during fast motion to raise frame rates. It is usually recommended to turn this off to avoid sudden shifts in image Disabled (can cause inconsistent resolution scaling and artifacts during fast camera movements) |
| Radeon Image Sharpening | Disabled by default, or set to around 80–100% only if you are actively using FSR upscaling. Sharpens soft-looking in-game visuals. Keep this off unless you prefer a sharper image. |
| Enhanced Sync | Disabled frequently induces stuttering or frame pacing issues; use standard V-Sync or FreeSync instead. An alternative to V-Sync that reduces screen tearing with lower latency than traditional V-Sync, though it can cause stuttering on some systems |
| Wait for Vertical Refresh | Off, unless application specifies |
| Surface Format Optimization | Enabled improves performance in compatible game engines without hurting visual quality |
| OpenGL Triple Buffering | A driver-level setting that helps eliminate screen tearing and improve frame rates when Vertical Refresh (V-Sync) is enabled in OpenGL-based applications and older games Disabled prevents added input lag and unnecessary VSync overhead in games that do not use the OpenGL API |
| Texture Filtering Quality | Standard or Performance if you prefer marginal extra frames on lower-end hardware |
| Display & Quality Settings | |
| AMD FreeSync / Adaptive Sync | Enabled (make sure it is turned on in both Adrenalin and your physical monitor settings) |
| Pixel Format | Set to Full RGB (0-255) instead of Limited RGB to ensure correct color depth and dynamic range. |
| Virtual Super Resolution (VSR) & GPU Scaling | Virtual Super Resolution (VSR) renders games at a higher resolution than your monitor’s native display and downscales it, acting as high-quality Super Sampling Anti-Aliasing (SSAA). Enabled |
| Advanced Features (Use with Caution) | |
| AMD Fluid Motion Frames (AFMF) / Frame Generation | Leave Disabled globally. Only turn it on per-game for casual or single-player titles where extra smoothness outweighs a minor penalty to input latency. Prefer in-game FSR/DLSS implementations over driver-level overrides whenever available. |
| Hyper-RX | Generally Avoid using the blanket one-click Hyper-RX profile globally, as it forces multiple background features on that may conflict with specific game engines. Configure individual games manually for stable performance. |
| Flushing DirectX Shader Cache On Windows 11, DirectX Shader is an optimization feature for storing pre-compiled versions of special instructions, known as shaders. Shaders are small programs understood by the graphics card that control various graphical effects. Compiling shaders can be time-consuming, and using a cache helps optimize performance by providing easier and faster access to pre-compiled versions. The decision to clear the cache will depend on you. However, below are some reasons why you may want to do so. To resolve performance issues – A cleared DirectX Shader cache may resolve some performance issues, including graphical glitches and stuttering. Freeing up disk space – Even though the cache may not take up much space, clearing it will still free up some extra space on your computer. To update the cache – If you have just updated your graphics card or installed new games, you may clear the DirectX Shader cache to fill it with new information. Note: clearing the cache is not something you must do often. It is mainly a troubleshooting step when you face some graphical issues. This procedure will not negatively affect your system. This is because the cache is isolated storage with no permanent information. You cannot disable or prevent the creation of the DirectX Shader Cache. Windows 11 has no official way of disabling this optimization feature. Ccleaner provides an option to flush the DirectX Shader Cache. To flush DirectX Shader Cache Using Disk Cleanup 1. Open Start Menu, type cleanup in the search bar, click Disk Cleanup to open it.. 2. Select your C drive, then click the OK button. 3. Tick the DirectX Shader cache option and click OK. (Note: Though this is meant to flush DSC, it could be a good idea to check every listed item and clean the system of other temporary files.) |
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