Garry's Mod on GeForce GTX 660

Meets minimumEstimate · medium confidence, ±20%

Yes, at lower settings. The GeForce GTX 660 meets Garry's Mod's minimum spec but not the recommended one. We estimate ~39 fps at 1080p high (range 31–47, medium confidence, ±20%), GPU-limited. For 60 fps at 1080p, use the low preset. Its 2 GB of video memory is below the 4 GB the game recommends. The cheapest current card for 60 fps at 1080p high is the Radeon RX 6400 (~60 fps). Model estimate, not measured; data updated 2026-09-24.

Estimated FPS by preset

Preset	1080p	1440p	4K
low	66	46	28
medium	51	35	21
high	39	27	16
ultra	31	22	13

Estimate · medium confidence, ±20%

Estimated FPS from our model (v0), based on the game's published requirements and relative GPU/CPU performance. Not measured. Real results vary with drivers, patches, and scenes. Values above 300 fps show as 300+. Data updated 2026-09-24.

Best settings

60 fps at 1080p: low preset
60 fps at 1440p: not reachable
144 fps at 1080p: not reachable

This GeForce card has no tensor cores, so DLSS is not available. Use FSR or XeSS in quality mode before dropping the preset.

What limits performance

Estimates above: GPU-limited, assuming a processor fast enough not to hold the GeForce GTX 660 back.
Processor needed for ~39 fps: Core i3-9100F or faster (slowest current desktop CPU our model expects to keep up).
With the recommended CPU: still GPU-limited at 1080p high, ~39 fps.

Video memory

GeForce GTX 660: 2 GB
Minimum spec: 1 GB (+1 GB headroom)
Recommended spec: 4 GB (2 GB short)

Cheapest upgrade for each target

1080p, 60 fps, High

Radeon RX 6400

~60 fps vs 39 now (est.)

+54% GPU performance

1440p, 60 fps, High

GeForce RTX 3050 6GB

~61 fps vs 27 now (est.)

+123% GPU performance

4K, 60 fps, High

GeForce RTX 3060 12GB

~63 fps vs 16 now (est.)

+285% GPU performance

Slowest current desktop card (2020+) that reaches each target in Garry's Mod; usually the cheapest.

Garry's Mod on popular graphics cards (high preset)

Graphics card	1080p	1440p	vs GeForce GTX 660
GeForce GTX 660	39	27	—
GeForce GTX 1650	60	42	+54%
GeForce GTX 1060 6GB	84	59	+115%
GeForce RTX 2060 6GB	126	88	+223%
Radeon RX 6600	138	97	+254%
GeForce RTX 3060 12GB	150	105	+285%
GeForce RTX 4060 Laptop GPU	156	109	+300%
Radeon RX 7600	174	122	+346%
GeForce RTX 4060	177	124	+354%
GeForce RTX 3070	207	145	+431%
GeForce RTX 4070	261	183	+569%
Radeon RX 7800 XT	291	204	+646%
GeForce RTX 5070	300	210	+669%
Radeon RX 9070 XT	300+	273	+900%
GeForce RTX 4080	300+	284	+938%
GeForce RTX 5090	300+	300+	+1554%