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MFAA (Multi-Frame Sampled Anti-Aliasing) is NVIDIA’s driver-assisted anti-aliasing option for supported Maxwell GeForce GPUs. NVIDIA’s 2014 explanation says 4x MFAA can deliver anti-aliasing properties equivalent to 4x MSAA at the performance cost of 2x MSAA. That is NVIDIA’s technical comparison—not a guarantee of the same image quality or frame rate in every game or system.
What MFAA does
Traditional MSAA takes multiple samples around an edge to reduce jagged lines. NVIDIA says earlier GPU generations used fixed sample patterns stored in ROM. Maxwell introduced programmable rasterization sample positions stored in RAM, allowing the driver or application to vary sample positions spatially and across frames.
MFAA uses those programmable positions to alternate anti-aliasing sample patterns over time and space. In its September 18, 2014 GeForce News explanation, NVIDIA said: “By alternating AA sample patterns both temporally and spatially, 4xMFAA has the performance cost of 2xMSAA, with anti-aliasing properties equivalent to 4xMSAA.” NVIDIA’s MFAA explanation describes the intended trade-off. Treat it as a vendor-stated comparison, not a universal benchmark.
How to enable MFAA
In NVIDIA Control Panel
- Open NVIDIA Control Panel and select Manage 3D settings.
- Set Multi-Frame Sampled AA (MFAA) to On, then apply the change.
- In a supported game, select 2x MSAA or 4x MSAA. NVIDIA’s historical guide says the driver applies MFAA to that game setting.
NVIDIA’s Assassin’s Creed Unity guide described the resulting quality as comparable to 4x MSAA when selecting 2x MSAA with MFAA, and comparable to 8x MSAA when selecting 4x MSAA. Those are the guide’s documented comparisons for its supported-game setup, not a promise that every title will behave identically. See NVIDIA’s Assassin’s Creed Unity MFAA guide.
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In the NVIDIA app
NVIDIA’s app guidance places MFAA among the legacy 3D settings. Open Graphics, choose the game’s Driver Settings or global settings, scroll down, and select Show Legacy Settings. NVIDIA lists Multi-Frame Sampled Anti-Aliasing among the options there. App labels and layout can change; consult NVIDIA’s app guidance if the labels differ in your installed version.
Does MFAA work on a GTX 970?
Yes: NVIDIA named the GeForce GTX 970 among the early second-generation Maxwell cards associated with MFAA. NVIDIA’s guide also included the GTX 980 and mobile examples. The GTX 970 is legacy hardware; this does not mean you need to buy one to use MFAA if you already have a supported Maxwell card.
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- Output: DisplayPort x 1 (v1.4a) / HDMI 2.0b x 1
Compatibility also depends on the driver and game. NVIDIA’s January 22, 2015 GeForce 347.25 WHQL release said MFAA support had been extended to “nearly every DX10 and DX11 title.” That dated claim is not an exhaustive compatibility list for games available today. Check that the game offers MSAA and test the setting in that title. The driver details are in NVIDIA’s 347.25 WHQL release page.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Does MFAA improve FPS?
It can reduce the performance cost relative to a higher MSAA setting, but the gain depends on the game, GPU, driver and settings. NVIDIA’s figures are historical, game-specific manufacturer claims:
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| Example | NVIDIA’s reported result | What the figure means |
|---|---|---|
| Assassin’s Creed Unity | 10–30% faster; 21% on NVIDIA’s featured system | NVIDIA’s 2014 guide said this could be achieved using GeForce Game Ready Driver 344.75 WHQL or newer, in that title’s context. It is not an independent or general result. |
| Grand Theft Auto V | 10–30% faster | NVIDIA’s 2015 guide described this result in its GTA V discussion; it should not be generalized to other games or systems. |
| Rainbow Six Siege | No percentage stated | NVIDIA’s guide said 2x MSAA with MFAA yielded anti-aliasing near-identical to 4x MSAA for a small performance cost in that game. |
The claims come from NVIDIA’s Assassin’s Creed Unity guide, Grand Theft Auto V guide, and Rainbow Six Siege guide. They are not current independent benchmarks covering MFAA broadly.
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What can limit MFAA or make it a poor choice?
- The game must support the relevant path. The documented setup requires selecting 2x or 4x MSAA in a supported game; games without an MSAA option do not fit that setup.
- Image quality is game-dependent. Compare edge smoothing with the game’s other anti-aliasing options. Those alternatives may differ in blur, temporal aliasing, or other artifacts.
- Performance is system-dependent. NVIDIA’s historical comparisons do not establish the frame rate or frame-time stability you will get. Compare settings on your own card and in the scenes you play.
- Multi-GPU status needs qualification. NVIDIA’s 2015 GTA V guide said MFAA was compatible only with single-GPU systems “at the time of writing.” That is a contemporaneous, game-guide limitation—not proof of a universal current rule for every title and configuration.
How to decide whether to use it
- Confirm your GeForce card and driver expose MFAA in NVIDIA’s 3D settings.
- Check whether the game offers MSAA and whether it is among the supported titles for your configuration.
- Compare MFAA enabled with the game’s ordinary MSAA and other available anti-aliasing modes at the same resolution and scene.
- Keep the option that gives you the edge quality you want without unacceptable frame-rate or frame-time effects.
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