Monitor Hz & FPS Checker: Online Display Resolution Tester

Monitor Diagnostics
Live Monitoring

Monitor Diagnostics

Real-time display analysis

Refresh Rate
-- Hz
Frame Timing -- ms
Frames Counted
0
Avg FPS
--
Min Frame Time
-- ms
Max Frame Time
-- ms
Jitter
-- ms
Stability
--%
Screen Resolution
-- × --
Viewport -- × --
Pixel Ratio --
Aspect Ratio --
Color Depth --

Monitor Details

Physical Width -- mm
Physical Height -- mm
Diagonal Size --"
PPI Density --
Total Pixels --
Megapixels --
Orientation --
HDR Support --

Display Technology

Available Width --
Available Height --
Touch Support --
Color Gamut --

Performance Metrics

Detected Max FPS --
V-Sync Status --
Frame Consistency --%
Display Type --
FPS History (Last 60 Samples)
Recording
0 120 Hz

Values update in real-time • Resize window to see changes

Table of Contents

 

  1. The Evolution of Monitors: From CRTs to LED

  2.  
  3. FPS vs. Hertz (Hz): What is the Difference?

  4.  
  5. The Importance of High Refresh Rates

  6.  
  7. The Perfect Match: GPU and Monitor Compatibility

  8.  
  9. Understanding Resolution and Pixels

  10. Comparison Table: FPS vs. Hz

  11.  
  12. Frequently Asked Questions (FAQs)

The Evolution of Monitors: From CRTs to LED

Do you know what Resolution and Hz actually are?. Between 1990 and 2000, we used massive, heavy computer monitors known as CRTs .

These were bulky and carried significant weight. Back then, we didn’t know much about resolution; we just considered the monitor to be everything, whether we were playing games or watching movies .

An old CRT computer monitor in a dim room. Text reads, "we used massive, heavy computer monitors known as CRTs," conveying nostalgia.
A sleek monitor displays a futuristic cityscape with vibrant colors. Surrounding text highlights specs: 144Hz, OLED, HDR, delivering a tech-focused atmosphere.

Today, technology has evolved rapidly. We now see beautiful LED and LCD screens not just on computers, but in car speedometers, mobile phones, and multimedia displays .

 

 

 

When buying a modern LCD, the box is filled with technical terms like Resolution, Refresh Rate, 144Hz, and OLED that can be confusing .

FPS vs. Hertz (Hz): What is the Difference?

To understand these terms, we must look at how images move .

FPS (Frames Per Second): A video is actually a series of still images moving quickly. Each individual image is called a “Frame”.

 

 

  • The Flipbook Example: Think of a childhood “Flipbook” where every page has a drawing. When you flip the pages fast, the image appears to move. Each page is a Frame, and the number of pages changed in one second is the FPS . In gaming, low FPS causes the movement to look choppy, which we call “Lag” .

  •  
  • Hertz (Hz): This relates directly to your monitor. It indicates how many times per second your screen refreshes with new information .

Monitor diagnostics interface displaying a refresh rate of 60 Hz and screen resolution of 1440 x 900. Frame timing is 16.67 ms, with 1,657 frames counted and an average FPS of 9. Additional details include viewport size 1265 x 684, pixel ratio of 2.00x, aspect ratio of 8:5, and color depth of 24-bit. The design is clean with a blue and white color scheme."

The Importance of High Refresh Rates

If you buy a 60Hz LCD, it redraws the image 60 times in one second . A 144Hz monitor refreshes 144 times per second.

The higher the refresh rate, the better the performance; movement and transitions become much smoother and easier to see .


On a 30Hz monitor, fast games will look stuck or choppy, but on 144Hz, they appear perfectly smooth.

Two monitors display a red race car. The left screen (30Hz) appears blurry, while the right (144Hz) is sharp. Neon lights create a vibrant, tech atmosphere.

The Perfect Match: GPU and Monitor Compatibility

Dual monitors display a GPU and a monitor connected, with a checkmark symbol for "Seamless Performance." Neon pink and blue lights illuminate the setup.

To get the best display, you need a combination of a good GPU and a good monitor .

 
  • FPS is the power of your GPU (Graphics Card).

     
     
  • Hz is the capability of your monitor .

     

If your GPU produces 120 FPS but your monitor is only 60Hz, your monitor will still only show 60 frames. Similarly, if you have a 144Hz monitor but a low-quality GPU, you will not get good results.

Understanding Resolution and Pixels

Resolution refers to the density of pixels on your screen . It is the total number of dots (pixels) present on the display .

 
 
  • More pixels result in a cleaner, clearer, and better display .

     
  • Common measurements include HD, Full HD (1080p), 2K, and 4K .

     
  • 4K provides the highest number of pixels and is ideal for graphic design and high-end gaming .

Two monitors side by side compare resolution: 1080p (FHD) on the left and 4K (UHD) on the right, showing pixel clarity differences in a mountain scene.

Comparison Table: FPS vs. Hz

FeatureFPS (Frames Per Second)Hertz (Hz)
Source

Produced by the GPU (Graphics Card)3232.

 
 

 

Controlled by the Monitor33333333.

 
 

 

Function

The number of images created every second34343434.

 
 

 

The number of times the screen refreshes35353535.

 
 

 

Impact

Low FPS causes “Lag” or choppy movement 36.

 

 

High Hz makes motion look smooth 37.

 

 

Dependency

Limited by the monitor’s refresh rate3838.

 
 

 

Limited by the GPU’s output3939.

 
 

 

Frequently Asked Questions (FAQs)

Q: Can I see 120 FPS on a 60Hz monitor?
A: No. Even if your computer generates 120 FPS, a 60Hz monitor can only display 60 images per second.
The extra frames are effectively wasted.

 
 

Q: Why does my game look choppy even with a good monitor?

 

A: This usually happens if your GPU is not powerful enough to produce high FPS, or if your Windows settings are still set to 60Hz instead of your monitor’s maximum speed.

 
 

Q: Is 4K better than Full HD for gaming?

 

A: 4K provides more pixels and a much clearer image, making it the best choice for high-quality gaming and design, provided your GPU can handle it .



Q: Is any web tool Which check the Monitor Completely. 

yes!
we provide complete Display Testing tool 
click the link to test your Display “https://pctester.online/screen-test-2/

 

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