Frame rate limits can do more than put a number on your gaming performance. Used with the right display settings, an FPS cap can help reduce screen tearing, ease the load on your graphics card, and cut fan noise and power output.
The right setup depends on how your monitor handles variable refresh rates and how much performance your hardware can deliver. DLSS adds another part to the decision by changing how a supported NVIDIA GPU renders and reconstructs each frame.
When limiting FPS makes sense
Screen tearing happens when the GPU sends a new frame while the monitor is still showing the previous one. The display then shows parts of two frames at the same time, creating a visible break across the image.
V-Sync addresses this by capping FPS to the display’s maximum refresh rate. A system-wide frame rate cap can also help stop tearing when you use it with V-Sync. In most cases, setting the cap three or four frames below the screen’s maximum refresh rate will stop screen tearing.
That lower limit gives the system room to stay inside the display’s variable refresh rate range. The effective VRR range usually starts at 48 fps and reaches the monitor’s maximum refresh rate. If the game runs above that upper limit, the display cannot match every frame through VRR, which is where a cap can help.
A cap can also reduce the work your GPU performs when the hardware is producing more frames than the monitor can show. That can lower GPU load, reduce fan noise, and cut power output. The goal is not always to chase the highest possible number. Stable performance can make more sense.
As Dave Meikleham put it, “Setting an fps cap can help you hit and maintain stable performance — provided your hardware is up to the task — while lowering the chance of screen tearing.” A cap cannot create performance that the hardware does not have, but it can control excess output when the GPU is running ahead of the display.
How DLSS changes the performance equation
DLSS stands for Deep Learning Super Sampling. NVIDIA describes it as proprietary upscaling technology designed to increase game performance. It lets a supported GPU render a game at a lower internal resolution, then upsample the result to the monitor’s native resolution.
DLSS offers four modes: Quality, Balanced, Performance, and Ultra Performance. Each mode changes the internal render resolution percentage, so the GPU has less work to do before the image reaches the display.
- Quality: renders at 66.7 percent of the target output resolution.
- Balanced: renders at 58 percent of the target output resolution.
- Performance: renders at 50 percent of the target output resolution.
- Ultra Performance: renders at 33.3 percent of the output resolution.
These modes give players a way to trade internal resolution for performance. DLSS support has grown from a few games in 2019 to more than 1,000 games and apps as of 2025. NVIDIA GPUs support the technology, and the Nintendo Switch 2 is also compatible with DLSS.
Players can set DLSS modes through the NVIDIA Control Panel when the relevant options are available. For AMD GPUs, AMD Adrenalin can cap frame rates, while Guru3D RTSS RivaTuner provides another frame rate capping option.
What the DLSS versions add
NVIDIA reworked DLSS in 2025 with a transformer-based machine learning architecture and released DLSS 4. The company says DLSS 4 offers better image quality, reduced ghosting, and improved image stability. The upgrade can also bring a cost: DLSS 4 can result in worse performance on older RTX GPUs because of higher overhead.
DLSS 3 introduced frame generation, which allows RTX 40 series GPUs to generate interpolated frames and increase the frame rate. DLSS 4 added multi frame generation, allowing RTX 50 series GPUs to generate and interpolate more frames from a single rendered frame. DLSS 4.5 allows up to six generated frames for every rendered frame.
Those generated frames do not replace the need for a sensible FPS cap. A display still has a maximum refresh rate, and VRR still has an effective range that starts at 48 fps and ends at the display’s maximum refresh rate. Keeping output within that range remains part of managing smooth presentation.
Other DLSS features target image quality rather than raw frame output. Deep Learning Anti-Aliasing, or DLAA, reduces shimmer and flickering by stabilizing native output images. DLSS 3.5 introduced ray reconstruction, a denoising algorithm for ray tracing effects.
DLSS 5 takes a different approach. It interprets a game’s color and motion vectors to apply photoreal lighting and materials, adding an AI filter to games. It does not improve frame rate and can lower it because of the overhead needed to run the technology.
As of October 2026, DLSS 5 is available in NBA 2K27. That makes the distinction clear: some DLSS features focus on increasing performance, while others focus on image reconstruction, lighting, anti-aliasing, or materials.
A practical way to combine the settings
Start by considering the monitor’s maximum refresh rate and its VRR range. If the game can run beyond the display’s limit, use V-Sync with a cap three or four frames below the maximum refresh rate. This combination can reduce tearing while keeping frame delivery inside the useful display range.
If the GPU is working harder than needed, a cap can lower load, fan noise, and power output. If the game needs more performance, DLSS can reduce the internal render resolution and upscale the image to the monitor’s native resolution.
The key is to treat FPS caps and DLSS as separate controls. A cap manages how many frames the system sends. DLSS changes how much work the GPU does to produce those frames. Together, they can help balance smooth output, image quality, noise, and power use without chasing a frame rate the display cannot show.
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