Frequently Asked Questions

An FPS Tester is a tool that helps you observe or measure frames per second and understand how different frame rates affect motion. FPSTestR provides a browser-based FPS testing experience that allows users to compare common frame rates directly on their display.

FPS stands for "frames per second." It describes how many individual frames are generated, rendered, or displayed during one second, depending on the context. Higher frame rates can produce smoother-looking motion when your hardware, browser, and display are capable of presenting them.

Open the FPSTestR homepage and use the FPS Tester located in the hero section. You can access the tool directly at:

/#fps-tester

Do not link to /fps-tester/.

The main FPSTestR tool is available directly on the homepage. Use the "Test Your FPS" button or visit:

/#fps-tester

No dedicated desktop application is required for the browser-based FPS testing experience. You can access the core FPS Tester directly through a supported web browser.

FPSTestR is designed around common frame rates such as:

• 30 FPS
• 60 FPS
• 120 FPS
• 144 FPS
• 240 FPS

Additional values may be supported through other features or future Pro functionality where available.

Yes. The core FPS Tester available on the FPSTestR homepage is part of the Free experience.

Yes. FPSTestR can help users visually compare commonly used frame rates such as 30 FPS and 60 FPS so the difference in motion is easier to understand.

Yes. Comparing 60 FPS and 120 FPS can help illustrate how higher frame rates may produce smoother motion on hardware and displays that support higher refresh rates.

Where those frame-rate options are available in the tool, FPSTestR can be used to compare high frame-rate motion. The visible difference will depend heavily on your display's refresh rate and system performance.

The core Free experience focuses on common preset frame rates. Custom FPS controls may be available through Pro functionality where supported. Check the Pricing page for current feature availability.

No. FPSTestR is designed for testing, comparison, and education. It does not physically increase game FPS, improve GPU performance, overclock hardware, or increase your monitor's refresh rate.

FPS measures how many frames are generated or rendered each second.

Hz measures how many times a display can refresh its image each second.

They are related, but they are not the same measurement.

A computer may render more than 60 FPS, but a 60 Hz monitor refreshes the screen approximately 60 times per second. Therefore, it cannot show 120 completely unique screen refreshes every second in the same way a 120 Hz display can.

A system may render 240 FPS while using a 144 Hz display, but the monitor itself refreshes approximately 144 times per second. A higher rendered frame rate can still affect responsiveness or frame delivery, but the monitor cannot physically refresh 240 times each second.

60 FPS is commonly used and can provide smooth motion for many games, applications, and videos. Whether it is enough for you depends on your display, game type, hardware, and personal preference.

120 FPS can provide smoother-looking motion and lower frame intervals when displayed on compatible high-refresh-rate hardware. However, the improvement depends on the application, monitor refresh rate, hardware performance, and individual perception.

144 FPS means that approximately 144 frames are being rendered each second. It is commonly associated with gaming systems using 144 Hz or similar high-refresh-rate monitors.

240 FPS refers to approximately 240 rendered frames per second. It is commonly associated with competitive gaming and monitors capable of very high refresh rates.

Higher FPS can result in smoother-looking motion when the display and system can properly support it. However, the visible difference depends on factors such as refresh rate, frame pacing, browser behavior, hardware performance, content, and individual perception.

A monitor's refresh rate measures how many times the screen can update its image each second.

For example:

• 60 Hz = up to approximately 60 screen refreshes per second
• 120 Hz = up to approximately 120 refreshes per second
• 144 Hz = up to approximately 144 refreshes per second
• 240 Hz = up to approximately 240 refreshes per second

Frame time describes the approximate time associated with rendering one frame and is usually expressed in milliseconds.

Educational examples (mathematical approximations):

• 60 FPS ≈ 16.67 ms per frame
• 120 FPS ≈ 8.33 ms per frame
• 144 FPS ≈ 6.94 ms per frame
• 240 FPS ≈ 4.17 ms per frame

More consistent frame times usually result in more consistent motion. Even when average FPS is high, inconsistent frame delivery can create visible stutter or uneven motion.

Human vision does not operate as a camera with a fixed FPS limit. People can perceive changes in motion, latency, flicker, and smoothness at different rates depending on conditions. Avoid presenting a single FPS value as a universal biological limit.

Learn more: How Much FPS Can Your Eyes See?

FPSTestR is designed for modern browser environments such as current versions of Chrome, Edge, Firefox, and Safari where supported. Exact behavior can vary between browsers and devices.

Yes. Browser-based FPSTestR functionality is designed to work on compatible modern Windows browsers.

Yes, provided you are using a modern compatible browser and your device supports the required browser rendering features.

Yes. FPSTestR should work through compatible modern browsers on Windows 11, although system settings and performance can influence browser-based test behavior.

FPSTestR's browser-based tools can be used through compatible modern browsers on macOS.

Browser-based functionality may work on Linux through compatible modern browsers. Results may vary based on browser engine, graphics drivers, compositor behavior, and display configuration.

Yes. FPSTestR can be used on compatible laptop browsers. Laptop performance, battery settings, integrated graphics, thermal limits, and display refresh rate can influence results.

Some FPSTestR functionality may work on modern mobile browsers, but FPS and display testing may be more useful on desktops and laptops because mobile browsers and screens may apply additional rendering and refresh-rate restrictions.

Yes. Browser workload, open tabs, extensions, rendering engine behavior, background activity, and hardware acceleration can affect browser-level FPS behavior.

It can. Modern browsers often use GPU hardware acceleration for graphics rendering. Browser settings, drivers, and device compatibility may influence rendering performance.

Do not automatically tell users to disable hardware acceleration.

Yes. Your monitor's refresh rate determines how frequently it can update its image, so display capability directly affects what high frame rates can visually look like.

No. Browser-based FPS testing is useful for visual comparison, education, and browser-level measurements, but it should not be treated as a replacement for professional laboratory tools or dedicated hardware measurement equipment.

Yes. FPSTestR provides a Free experience that includes access to the core FPS Tester on the homepage.

The Free experience is designed to include:

• access to the homepage FPS Tester
• common FPS comparisons
• browser-based testing
• FPS educational content
• refresh-rate educational content

No. The core FPS Tester on the homepage is available through the Free experience.

FPSTestR Pro is intended for users who want more advanced features such as:

• custom FPS values
• advanced comparison options
• deeper frame-time insights
• saved test results
• test history
• export functionality
• additional visualization options

Feature availability should match the current Pricing page.

Visit the Pricing page for the latest Pro pricing and feature availability.

Do not hardcode pricing into the FAQ page.

The Custom plan is intended for users, developers, businesses, or organizations with specialized needs such as:

• custom testing workflows
• integrations
• custom reports
• specialized configurations
• project-specific requirements

Contact FPSTestR through the Contact page or email support@fpstestr.com and explain your requirements.

Subscription and cancellation terms should be reviewed on the Pricing or checkout page before purchase. Do not invent cancellation terms or guarantees on the FAQ page.

Feature availability may change as FPSTestR evolves. The Pricing page should clearly identify which Pro capabilities are currently available and which are planned.

Possible reasons include:

• browser workload
• device hardware limitations
• background programs
• power-saving settings
• thermal throttling
• browser extensions
• graphics-driver behavior
• display configuration
• hardware acceleration settings

FPS can fluctuate because browser and system workload changes continuously. Background processes, animations, thermal conditions, power modes, and browser scheduling can all affect frame delivery.

Stuttering may occur because of:

• inconsistent frame delivery
• browser workload
• system load
• background applications
• power-saving modes
• display limitations
• frame-time variation

Different browsers may use different rendering engines, scheduling systems, hardware acceleration behavior, graphics pipelines, and resource-management techniques.

Possible reasons include:

• your monitor may only support 60 Hz
• your browser or hardware may not be delivering 120 FPS consistently
• the animation may not make the difference obvious
• display configuration may limit refresh behavior
• individual perception differs

The difference becomes harder to observe if your display cannot refresh at 240 Hz or if your system cannot maintain a high and consistent frame rate. Individual perception and animation content also affect how noticeable the difference appears.

Closing resource-intensive tabs and applications can reduce background workload and may help create a more consistent browser testing environment.

Power-saving modes can reduce CPU or GPU performance on some devices. If appropriate for your hardware, you may compare results between different power modes while following your device manufacturer's recommendations.

Yes. Some browser extensions can use CPU, memory, graphics resources, or inject scripts into webpages, potentially affecting performance.

Yes. Games, video software, browsers, screen recorders, updates, and other background applications may consume system resources and affect frame rendering.

Try these steps:

1. Refresh the page.
2. Confirm that your browser is up to date.
3. Close resource-heavy tabs.
4. Restart your browser.
5. Check whether browser hardware acceleration is functioning correctly.
6. Try another modern browser.
7. Restart your device if necessary.
8. Contact support if the problem continues.

Support email: support@fpstestr.com

You can contact FPSTestR through the Contact page:

or email: support@fpstestr.com

Use the Contact page and include useful technical details such as:

• browser name
• browser version if known
• device type
• operating system
• display refresh rate if known
• FPS value being tested
• description of the problem

Yes. Feature suggestions and product feedback can be submitted through the Contact page.

Yes. Questions about Pro functionality, feature availability, or account-related topics can be sent through the Contact page or to support@fpstestr.com.

Use the Contact page and describe the workflow, integration, reporting, testing, or project requirements you need.

Useful details include:

• browser
• operating system
• desktop or laptop
• graphics hardware if known
• monitor refresh rate
• FPS target
• steps that reproduce the issue
• screenshots where helpful

Do not request passwords or sensitive payment information.

No.

Users should never send:

• passwords
• authentication codes
• login credentials
• full card numbers
• security codes
• sensitive payment information

through the normal support email or website contact form.