For avid PC gamers, frame rates are often a topic of passionate discussion. However, even those equipped with top-tier gaming systems should consider the benefits of capping their in-game frames per second (fps). Implementing a system-wide fps cap can enhance GPU performance without necessitating an upgrade. This approach not only mitigates screen tearing when paired with V-Sync (vertical synchronization) but also reduces the overall load on the GPU.
Is it better to cap your frames or leave them uncapped?
In most gaming scenarios, capping your frame rate is advisable. Establishing an fps limit can help maintain stable performance, provided your hardware is capable, while simultaneously lowering the risk of screen tearing. Additionally, this practice alleviates stress on the GPU, resulting in quieter fan operation and decreased power consumption.
For those utilizing a Variable Refresh Rate (VRR) monitor, setting a frame rate cap is particularly beneficial. This ensures that your favorite titles remain within the effective VRR range, typically starting at 48 fps and extending to the display’s maximum refresh rate. By capping the frame rate, you prevent the in-game action from exceeding the refresh rate ceiling, which can lead to reduced latency. When combined with V-Sync, this strategy effectively eliminates screen tearing.
Screen tearing occurs when the GPU transmits a new frame to the monitor while the previous one is still being displayed, resulting in a jarring visual experience characterized by flickering horizontal lines. This phenomenon can be distracting and detrimental to gameplay.
Having capped frame rates for years, I have found that it significantly enhances the smoothness and visual consistency of my gaming sessions on an NVIDIA G-Sync compatible monitor. I typically refrain from setting a minimum fps level, as both G-Sync and AMD’s FreeSync technology synchronize the display’s refresh rate with the GPU’s frame output. With my custom RTX 5090 setup, frame drops are rare, and even minor fluctuations from 120 fps to 110 fps go unnoticed.
How to cap frame rates in any PC game
The simplest method to cap a game’s frame rate is through an fps limiter, which many titles incorporate into their graphics settings. However, these built-in options can sometimes be unreliable. A more dependable approach is to utilize your GPU’s software.
- NVIDIA Users: Access either the NVIDIA app or the NVIDIA Control Panel. Navigate to Manage 3D Settings > Global Settings > Max Frame Rate and set your desired fps target.
- AMD Users: Use AMD Adrenalin to cap frame rates system-wide. Go to Gaming > Radeon Chill and set both the minimum and maximum fps to the same rate.
- Third-Party Options: Consider using programs like Guru3D RTSS RivaTuner for additional control.
Your output rate should be determined by your display’s maximum refresh rate. Generally, capping your frame rate three or four frames below this threshold can prevent screen tearing. For instance, on a 60Hz monitor, aim for 57 fps; on a 120Hz display, target 117 fps; and for 240Hz, set it to 237 fps. On VRR displays, a cap slightly below the maximum refresh rate can help minimize lag, although the difference may be negligible. If you’re concerned about losing a few frames, rest assured that the distinction between 57 and 60 fps, or 237 and 240 fps, is unlikely to be perceptible, provided your GPU maintains the set frame rate.
The pros and cons of using V-Sync
V-Sync plays a crucial role in managing your PC’s frames per second by capping the fps to align with your display’s maximum refresh rate. For instance, if you’re gaming on a 120Hz monitor, V-Sync ensures that your in-game performance does not exceed 120 fps.
This technology synchronizes the game’s frame rate with the refresh rate of your monitor or TV. Before the GPU can deliver a new frame, V-Sync requires it to wait until the display’s refresh cycle is complete. This introduces a delay of 16.7ms for 60Hz panels, 8.33ms for 120Hz screens, and 4.17ms for ultra-fast 240Hz displays.
The primary advantage of V-Sync is its effectiveness in eliminating screen tearing, a significant immersion disruptor. However, the trade-off is the introduction of input lag. The amount of latency added can vary by game, but a general guideline is to expect one additional refresh cycle of lag. For a 120Hz monitor, this translates to approximately 8.33ms. If the GPU struggles to render frames quickly enough, queued frames may accumulate, further increasing latency.
In my experience, V-Sync does not typically introduce noticeable lag. For competitive gamers who prioritize smooth performance, NVIDIA offers a feature known as Fast V-Sync, which aims to reduce the lag associated with standard V-Sync while providing a tear-free experience. This option allows the GPU to continue rendering frames without waiting for a refresh cycle to complete, making it a valuable alternative for those frequently exceeding their monitor’s refresh rate, although it may not be compatible with all games.
