What Is Nvidia Reflex And Should You Use It? [2025 ] - GPU Mag (2025)

In the past several years, competitive multiplayer gaming has become more widespread than ever. Video games such as CS: GO, DOTA 2, Valorant, Apex Legends, Call of Duty: Warzone, and many other titles can have millions of players every month.

Many of these players aim for constant improvement to be considered among the best. In that case, it is important to reduce input lag and latency as much as possible. This can be achieved with high-end mice, high-refresh monitors, and now with NVIDIA Reflex.

NVIDIA Reflex is a distinctive feature that was introduced with the RTX 3000 series GPUs that reduces system latency as much as possible in video games. This reduction in latency is crucial, especially for the most competitive and professional gamers.

Let’s see how NVIDIA Reflex functions and why you should use it.

What Is System Latency?

We’ve mentioned system latency multiple times already, but what makes it so awful? Why should gamers try to keep it as minimal as possible?

System latency is the time required for an action (such as the click of a keyboard or mouse) to be displayed on the screen in front of you. For example, when you click on your mouse to shoot, you want that action to be sent to the game rapidly. The click-to-display delay could be the reason that you miss your intended shot.

The image above illustrates system delay terminology. Let’s clarify some of those terms.

• Peripheral Latency – The time needed for a mechanical action on an input device (mouse, keyboard, controller, etc.) to be sent to the PC for processing.
• Game Latency – The time needed for the processor to process your input and send the processed information to the graphics card.
• Render Latency – The time it takes for the GPU to process that information (through a render queue) and render the frame. The rendered frame is then sent to the display.
• Display Latency – The time needed for the monitor/TV to display the rendered frame.

When we combine all of these together, we get overall system latency.

This delay/system latency can be reduced in numerous ways. One of the most efficient methods is with higher FPS because more FPS equals less input lag. This is why so many professional players lower their graphical settings to push their FPS as high as possible.

Another way latency can be reduced is with better hardware. Many gamers have high-end mice that advertise the lowest possible latency. Swift-refresh rate monitors are also common as they can considerably reduce input lag.

Being even a minor step ahead of your competition is crucial in competitive matches. NVIDIA Reflex is where gamers can gain that edge.

Reflex SDK And Reflex Latency Analyzer

We can’t know for certain how Reflex works, but NVIDIA has shared some data on the technologies in play.

Reflex relies on the in-game implementation of the Reflex SDK.

This SDK is vital for the reduction in latency because it allows developers to implement Reflex directly into their games.

The Reflex Latency Analyzer, on the other hand, is a device that is incorporated in certain G-Sync-supported monitors. This analyzer allows users to ascertain the latency of their system.

This can be beneficial as competitive players can do trial and error of all settings and various hardware to find the ideal spot of the lowest system latency.

How Does Reflex Reduce System Latency?

So, how precisely does Reflex assist with reducing system latency? It’s not magic, but it definitely gives that impression.

Here is NVIDIA’s lucid explanation in a clip.

Essentially, the incorporation of the SDK assists the game’s engine in organizing renderings intelligently and swiftly, which efficiently lessens the GPU render queue and eliminates burdens from the CPU, maintaining synchronization between the CPU and GPU.

There is also the Low Latency Boost option in some games that disables all power-saving limitations of the GPU while gaming, allowing the graphics card to clock faster and remain at those clocks for longer, even when the game is CPU bound.

Of course, there are drawbacks to this. Disabling power-conserving features results in a greater power draw. It is up to the user to determine whether or not this is worthwhile.

Fortunately, you can keep Low Latency Boost dormant while keeping Reflex active.

As we can see in the image above (source: NVIDIA), popular games such as Valorant, Fortnite, Destiny 2, and Apex Legends reduce up to 30% of system latency. Keep in mind that this is without Low Latency Boost. Enabling it could reduce latency even more.

10 or 20 milliseconds may not seem like a significant lot, but if your enemy is just 1ms quicker (thanks to lower system latency), that is more than enough advantage to defeat you.

Which GPUs Support NVIDIA Reflex?

We have unfortunate news for you if you are on AMD. Reflex does not and will probably never work on an AMD GPU. This is typical of NVIDIA. Fortunately, AMD does have Anti-Lag, which is comparable to NVIDIA’s Ultra Low Latency Mode.

If you want to use the capabilities of this technology, you will need an NVIDIA GPU.

Here’s a table of GPUs that support Nvidia Reflex.

Reflex Game Support

As NVIDIA Reflex requires collaboration with developers, naturally, not every game has it.

Here’s a current list of games that support NVIDIA Reflex:

• Apex Legends
• Battlefield 2042
• Call of Duty: Modern Warfare 2019 (Warzone included)
• Call of Duty: Black Ops Cold War
• Call of Duty: Vanguard
• Deathloop
• Destiny 2
• Apex Legends
• Valorant
• Mordhau
• Fortnite
• Tom Clancy’s Rainbow Six Siege
• Warface
• Ghostrunner
• God of War
• Naraka: Bladepoint
• Crossfire HD
• Deep Rock Galactic
• LEAP
• ICARUS
• Nine to Five
• Rust
• Quake: Champions
• Splitgate
• Super People

Check out NVIDIA’s website for the full list of supported games.

For example, LEAP, a multiplayer FPS game, can get 50% decreased system latency with Reflex, according to NVIDIA.

Conclusion

So, is NVIDIA Reflex valuable?

Considering that there are absolutely no drawbacks to enabling this choice in any of the games listed above, there really is no reason not to use it. It is going to make your experience more responsive, so yes, NVIDIA Reflex is absolutely worth it.