Does HDMI 2.0 support 240Hz? The question comes up very often when players look at gaming monitors and when they look at HDMI 2.0 specifications. HDMI 2.0 is not the newest standard, but HDMI 2.0 is still very common on monitors, on graphics cards, and on gaming laptops. For many competitive players the main question is simple: can HDMI 2.0 run 240Hz, and does HDMI 2.0 support 240Hz at the resolution that matters for competitive gaming?
HDMI 2.0 can support 240Hz at 1080p. HDMI 2.0 can deliver 240Hz 1080p without compression, and HDMI 2.0 can handle Full HD with high refresh. That is why HDMI 2.0 is used on competitive gaming monitors, and that is why HDMI 2.0 is still enough for many players. But HDMI 2.0 has limits at higher resolutions, HDMI 2.0 has caps at 1440p, and HDMI 2.0 has hard limits at 4K. To understand HDMI 2.0 gaming monitors and to compare HDMI 2.0 vs DisplayPort for gaming, you need to look at refresh rates step by step.
Can HDMI 2.0 Run 240Hz at 1080p?
HDMI 2.0 240Hz 1080p is supported. HDMI 2.0 can run 240Hz at 1080p. HDMI 2.0 can deliver Full HD 240Hz without compression. HDMI 2.0 240Hz 1080p is real and it works well. Does HDMI 2.0 support 240Hz? Yes, HDMI 2.0 supports 240Hz at 1080p.
HDMI 2.0 240Hz 1080p is important for competitive gaming. HDMI 2.0 240Hz 1080p works well for esports monitors. HDMI 2.0 240Hz 1080p is the reason many monitors advertise HDMI 2.0 support. HDMI 2.0 support 240Hz at 1080p means players can buy HDMI 2.0 gaming monitors and still get Full HD performance.
For competitive monitors, Full HD with 240Hz is still the main standard. Many players run 1080p 240Hz. HDMI 2.0 240Hz 1080p is enough. HDMI 2.0 can run Valorant, CS2, Apex, and other esports games at Full HD 240Hz. HDMI 2.0 240Hz 1080p works with the right GPU and the right HDMI 2.0 cable. HDMI 2.0 240Hz 1080p is the safe answer when the question is: does HDMI 2.0 support 240Hz?
HDMI 2.0 at Higher Resolutions – What Are the Limits?
HDMI 2.0 144Hz 1440p is supported. HDMI 2.0 can run up to 144Hz at 1440p. HDMI 2.0 144Hz 1440p is the maximum at QHD. HDMI 2.0 cannot run 240Hz at 1440p. HDMI 2.0 144Hz 1440p is the limit.
At 4K, HDMI 2.0 4K refresh rate is capped at 60Hz. HDMI 2.0 4K refresh rate cannot go above 60Hz. HDMI 2.0 4K refresh rate is limited. For 4K 120Hz or 4K 144Hz, HDMI 2.0 is not enough. HDMI 2.0 4K refresh rate shows the biggest limitation.
So the limits are clear. HDMI 2.0 240Hz 1080p works. HDMI 2.0 144Hz 1440p works. HDMI 2.0 4K refresh rate is only 60Hz. For higher refresh at higher resolution, HDMI 2.1 or DisplayPort is required.
Why DisplayPort Is Still Preferred for High Refresh Rates
HDMI vs DisplayPort 240Hz is always part of the discussion. HDMI 2.0 can do 240Hz at 1080p, but DisplayPort can do more. HDMI vs DisplayPort 240Hz shows that DisplayPort is better for higher resolution. DisplayPort 1.4 can do 240Hz at 1440p. DisplayPort 1.4 can even do 4K with DSC. HDMI vs DisplayPort 240Hz is not equal. DisplayPort is stronger for high refresh.
The best cable for 240Hz gaming is often DisplayPort. Many monitors limit HDMI 2.0. Many monitors only unlock full 240Hz through DisplayPort. That is why DisplayPort is the best cable for 240Hz gaming at higher resolution. HDMI vs DisplayPort 240Hz shows that DisplayPort is preferred.
So HDMI 2.0 works, but HDMI vs DisplayPort 240Hz shows DisplayPort is the safer option. The best cable for 240Hz gaming is DisplayPort if you want 240Hz at QHD or UHD. HDMI 2.0 is fine at 1080p. DisplayPort is best beyond that.
Common Issues When HDMI 2.0 Doesn’t Show 240Hz
Sometimes HDMI 2.0 not working 240Hz is a problem. Sometimes HDMI 2.0 not working 240Hz happens because the cable is wrong. If the cable is HDMI 1.4, then HDMI 2.0 not working 240Hz will appear. You need a proper HDMI 2.0 cable.
Another problem is the port. Some monitors have multiple HDMI ports. Not all HDMI ports are the same. HDMI 2.0 not working 240Hz can happen if you connect to the wrong HDMI port. Only one HDMI port may support full 240Hz.
Drivers and settings are another cause. HDMI 2.0 not working 240Hz can happen if GPU drivers are old. HDMI 2.0 not working 240Hz can happen if Windows or OS is set to 60Hz by default.
So 240Hz HDMI troubleshooting means check the cable, check the monitor port, check the GPU driver, check the OS settings. 240Hz HDMI troubleshooting is simple if you know these steps. HDMI 2.0 not working 240Hz can be solved with proper troubleshooting.
Quick Chart – HDMI 2.0 Refresh Rate Capabilities
| Resolution | Max Refresh Rate (HDMI 2.0) |
| 1080p | 240Hz ✅ |
| 1440p | 144Hz ✅ |
| 4K | 60Hz ❌ (higher needs HDMI 2.1) |
The chart shows it clearly. 1080p 240Hz with HDMI 2.0 is supported. 1440p 144Hz with HDMI 2.0 is supported. 4K with HDMI 2.0 is only 60Hz.
Final Verdict – Is HDMI 2.0 Enough for Gaming?
HDMI 2.0 gaming monitors are fine for 1080p. HDMI 2.0 gaming monitors are fine for 240Hz Full HD. HDMI 2.0 gaming monitors are enough for competitive Full HD play.
But HDMI 2.0 gaming monitors at 1440p are limited. HDMI 2.0 gaming monitors at 4K are limited. HDMI 2.0 vs DisplayPort for gaming shows DisplayPort is better for future-proofing. HDMI 2.0 vs DisplayPort for gaming shows DisplayPort is the choice if you want 240Hz at 1440p or high refresh at 4K.
So HDMI 2.0 gaming monitors are enough at 1080p. HDMI 2.0 vs DisplayPort for gaming shows DisplayPort is still preferred for higher resolution. HDMI 2.0 works now, but DisplayPort is better if you want more.
FAQs About HDMI 2.0 and 240Hz
Does HDMI 2.0 support 240Hz?
Yes, HDMI 2.0 supports 240Hz at 1080p. HDMI 2.0 can deliver Full HD 240Hz without compression.
Can HDMI 2.0 run 240Hz at 1440p?
No, HDMI 2.0 at 1440p is limited to 144Hz. For 240Hz at 1440p, DisplayPort or HDMI 2.1 is required.
What is the HDMI 2.0 4K refresh rate?
HDMI 2.0 at 4K is limited to 60Hz. For 4K 120Hz or higher, HDMI 2.1 is needed.
Why use DisplayPort instead of HDMI 2.0?
HDMI vs DisplayPort 240Hz shows DisplayPort is stronger. DisplayPort 1.4 can run 240Hz at 1440p and even 4K with DSC.
Why is HDMI 2.0 not working 240Hz?
HDMI 2.0 not working 240Hz usually means the cable is wrong, the monitor port is limited, or the refresh rate is not set in OS.