The GTX 1660 Super is the budget card that refuses to retire, and plenty of players still ask whether it can run a 240Hz monitor. Can a GTX 1660 Super run 240Hz? It can send the signal without trouble, and in a handful of lightweight games it can even fill it. Anywhere else, you will be running well below 240 frames per second.
- The GTX 1660 Super can output 240Hz at 1080p over DisplayPort or HDMI 2.0.
- Valorant, CS2 and older eSports titles can approach or pass 240fps with tuned settings.
- Modern AAA games will run in the 50 to 100fps range at 1080p.
- With no DLSS or ray tracing hardware, this card has little room to grow.
What This Card Actually Is
The GTX 1660 Super is a Turing chip from late 2019, but it is a cut-down version without the RT or Tensor cores that made RTX cards special. That single fact shapes almost every answer in this article. You can read the full spec sheet on TechPowerUp.
| Spec | GTX 1660 Super |
|---|---|
| Architecture | Turing (TU116) |
| CUDA cores | 1,408 |
| Memory | 6GB GDDR6, 192-bit |
| Memory bandwidth | 336 GB/s |
| Reference outputs | HDMI 2.0b, DisplayPort 1.4, DVI on some models |
| Ray tracing and DLSS | Not supported |
Board partner cards vary in port layout, so check the exact model you own before you buy a cable.
The Cable Question Comes First
Before frame rates, you need the right connection. A 240Hz signal at 1080p is not demanding by modern standards, but the cable and port still have to line up.
- DisplayPort 1.4: handles 1080p at 240Hz with room to spare, and it is the safest choice on this card.
- HDMI 2.0b: tops out at 18Gbps, which is enough for 1080p at 240Hz but not for 1440p at 240Hz.
- DVI: avoid it for anything above 144Hz, since many DVI ports cannot carry 240Hz.
If you want the numbers behind that, our explainer on gaming monitor HDMI ports covers what each version can carry. Using the wrong port is the number one reason a 240Hz option never appears in Windows.
Esports Games: The Good News
This is where the 1660 Super earns its reputation. Competitive games are built to run on modest hardware, and the numbers reported by community benchmark sites are encouraging, with the caveat that they depend on the CPU.
- Valorant: GPUCheck and CheckFPS style results range from about 150fps on Ultra to 280fps on tuned settings. With low settings and a decent six-core CPU, 240fps is plausible.
- CS2: some sources claim 300 plus fps on optimized settings, but CS2 is heavier than CS:GO and results swing with the map, so I would plan for roughly 150 to 250fps as a realistic band.
- League of Legends, Rocket League, Dota 2: comfortably above 240fps on low to medium settings.
- Fortnite: Performance mode can pass 200fps at 1080p, while DirectX 12 with higher quality drops well below that.
Those are estimates by title, not lab results. I have not benchmarked each game on this card, so use them as guides and check your own frame counter.
The Six Gigabyte Limit
The 6GB of VRAM is fine for esports, since those games use textures sparingly. It becomes a hard ceiling in newer titles.
- High texture packs in recent AAA games can exceed 6GB at 1080p, causing stutters even if the average FPS looks fine.
- Dropping texture quality one notch usually fixes it, at the cost of some sharpness.
- At 1440p the pressure gets worse, so pairing this card with a 1440p 240Hz panel is a poor match on more than one count.
That is why the card feels dated even in games where the average FPS looks acceptable.
AAA and Single-Player Games
Here the 240Hz dream ends quickly. There is no DLSS to lean on, so the card has to render every pixel natively.
| Game type | Typical 1080p result | 240fps realistic? |
|---|---|---|
| Valorant, CS2, LoL | 150 to 300 fps | Often yes, with tuning |
| Fortnite, Apex Legends | 100 to 200 fps | Rarely |
| Cyberpunk 2077, Forza Horizon 5 | about 60 to 90 fps | No |
| Ray-traced games | Not supported in hardware | No |
For reference, comparison sites such as Tech4Gamers and Technical City report roughly 68fps for a 1660 Super in Cyberpunk 2077 and around 76fps in Forza Horizon 5 at 1080p. Those figures vary by settings and test scene, so they are a guide, not a promise.
Should You Buy a 240Hz Monitor for It?
A 240Hz monitor is not wasted if you play mostly Valorant, CS2 or similar games, because even 180 to 220fps is smoother than a 144Hz cap. But it is the wrong purchase if your library is mostly single-player titles.
- List the three games you play the most.
- Look up the fps your card gets in each at 1080p on low settings.
- If most fall below 144fps, buy a 144Hz or 165Hz monitor instead and save the difference.
Our guide to how many Hz you actually need lays out this trade-off in more detail, and Wikipedia’s refresh rate entry covers the technical basics.
Squeezing Out More Frames
If you already own the card, a few tweaks help it hit higher numbers in the games it can handle.
- Set the power management mode to prefer maximum performance in the NVIDIA Control Panel.
- Use low or medium shadows and turn off motion blur and heavy post-processing.
- Enable NVIDIA Reflex in games that support it to reduce latency.
- Keep the driver current, and check that your monitor is really set to 240Hz in Windows display settings.
- Pair it with at least a modern six-core CPU, since older chips cap frames in competitive titles.
When to Upgrade Instead
If your goal is genuinely high refresh in a wider range of games, the card itself is the limit. A newer mid-range GPU with DLSS support changes the picture, and our Nvidia GeForce RTX 5060 review shows what a current entry-level card can do. That is a different price and power class, but it is the direction to look if you outgrow the 1660 Super.
Power, Heat and Living With It
One underrated point in the card’s favor is how easy it is to live with. It draws around 125 watts, needs a single 8-pin connector on most models, and runs cool and quiet in a small case.
- It works in old budget power supplies where a newer card would refuse to boot.
- It has no ray tracing overhead, so there is no temptation to turn on features it cannot handle.
- It keeps its value on the used market because it is a safe, well-understood card.
That makes it a fair stopgap for a 240Hz screen you plan to keep through a future GPU upgrade. Buy the monitor for the games you play now, and let the card catch up later.
Frequently Asked Questions
1. Can a GTX 1660 Super run 240Hz at 1080p?
Yes, it can output 240Hz at 1080p over DisplayPort or HDMI 2.0. Whether it fills 240Hz depends on the game, and it works mostly in light esports titles.
2. Can it run 240Hz at 1440p?
Not in a practical sense. HDMI 2.0 cannot carry 1440p at 240Hz, and the GPU is not fast enough to render that many frames at that resolution.
3. Does the 1660 Super support G-SYNC?
It supports G-SYNC Compatible mode with many adaptive-sync monitors over DisplayPort, which helps smooth out frame rates below your refresh rate.
4. Is 6GB of VRAM enough for 240Hz gaming?
For competitive games at 1080p, yes. For newer AAA games with high textures, 6GB can cause stuttering.
This article uses manufacturer specifications and publicly reported benchmark ranges, and actual performance depends on your CPU, game settings and driver version.
