Can a NVIDIA GeForce GTX 660 Ti run Garry's Mod?

Yes — with compromises

The NVIDIA GeForce GTX 660 Ti clears the minimum bar for Garry's Mod but sits under the recommended spec. It is playable at around 463 FPS at 1080p on high, and you will get a smoother result on the ultra preset.

463FPS @ 1080p
287FPS @ 1440p
167FPS @ 4K

High preset, upscaling off, paired with a AMD Ryzen 7 9800X3D-class processor.

How the NVIDIA GeForce GTX 660 Ti measures up

RequirementNVIDIA GeForce GTX 660 TiMinimumRecommendedResult
GPU performance score 7 Recommended
Video memory 2 GB 1 GB 4 GB Minimum
Ray tracing — Not supported Game has no RT N/A
Upscaling FSR Not supported N/A

Recommended settings

For 60 FPS at 1080p

Use the ultra preset. You already clear 60 FPS on high, so this leaves headroom for dips in busy scenes.

At 1440p

Comfortable — around 287 FPS on high.

At 4K

Around 167 FPS on high — genuinely viable.

VRAM headroom

At 2GB you are under the 4GB this game recommends. Lower the texture setting one notch first — it costs the least visual quality per gigabyte saved.

How other cards handle Garry's Mod

Graphics cardTier1080p FPSvs NVIDIA GeForce GTX 660 Ti
NVIDIA GeForce GTX 760 D 533 ▲ 70 FPS Compare
AMD Radeon R9 270X D 533 ▲ 70 FPS Compare
NVIDIA GeForce GTX 1050 F 463 ▼ 0 FPS Compare
NVIDIA GeForce GTX 950 F 463 ▼ 0 FPS Compare
AMD Radeon RX 560 F 463 ▼ 0 FPS Compare
AMD Radeon R7 370 F 463 ▼ 0 FPS Compare

Frequently asked questions

Can the NVIDIA GeForce GTX 660 Ti run Garry's Mod?

The NVIDIA GeForce GTX 660 Ti clears the minimum bar for Garry's Mod but sits under the recommended spec. It is playable at around 463 FPS at 1080p on high, and you will get a smoother result on the ultra preset.

What FPS will I get?

On high settings with upscaling off: roughly 463 FPS at 1080p, 287 FPS at 1440p and 167 FPS at 4K. These are modelled estimates — see our methodology.

What settings should I use?

Start at the ultra preset at 1080p.

Will my processor hold this back?

These figures assume a processor fast enough not to limit the card. If yours is older, run the bottleneck calculator — this title leans on the GPU, so a modest CPU deficit costs less.