Anti-Aliasing Explained
Estimated Lesson Time: 35–45 Minutes
Lesson Overview
In the previous lesson, we configured the display settings that determine how Microsoft Flight Simulator communicates with your monitor.
Now we’re going to explore one of the most important graphics settings in the simulator:
Anti-Aliasing.
Anti-aliasing has one job:
To make the image look smoother.
Without anti-aliasing, diagonal edges can appear jagged, shimmering, or unstable, especially while moving around the world.
Modern anti-aliasing does much more than simply smooth edges.
Some technologies:
- Increase FPS
- Improve image quality
- Reduce GPU workload
- Use Artificial Intelligence
- Generate higher-resolution images from lower-resolution renders
Choosing the correct anti-aliasing method can dramatically change both image quality and simulator performance.
Lesson Objectives
By the end of this lesson you will understand:
What Anti-Aliasing is.
Why jagged edges appear.
How TAA works.
How DLAA works.
How DLSS works.
How AMD FSR works.
How Intel XeSS works.
Which graphics cards support each technology.
The advantages and disadvantages of each method.
Which option is best for different types of hardware.
1. What Is Anti-Aliasing?
When a computer renders an image…
Everything is built from tiny squares called:
Pixels.
The problem is…
The real world isn’t made from squares.
When diagonal lines are created using square pixels, they can appear rough.
This effect is called:
Aliasing.
It causes:
Jagged edges.
Shimmering.
Flickering.
Moving stair-step lines.
Poor image quality.
Anti-aliasing attempts to smooth these edges.
Example
Imagine drawing a diagonal runway using LEGO bricks.
The runway edge would look stepped.
Now imagine smoothing those steps.
That’s exactly what anti-aliasing does.
Why It Matters In Flight Simulator
Microsoft Flight Simulator contains thousands of thin objects.
Examples include:
Power lines
Runway markings
Taxiway edges
Buildings
Trees
Aircraft wings
Cockpit displays
Without good anti-aliasing…
These objects may shimmer or flicker while moving.
2. Temporal Anti-Aliasing (TAA)
TAA stands for:
Temporal Anti-Aliasing.
It is the default anti-aliasing option for many Flight Simulator users.
Unlike older anti-aliasing methods, TAA doesn’t only use the current frame.
It also uses information from previous frames to smooth the image over time.
How TAA Works
Every new frame is compared with previous frames.
The simulator blends information together to reduce jagged edges.
Advantages:
Excellent image quality.
Sharp cockpit displays.
Very stable image.
Good runway markings.
Minimal shimmering.
Works on almost all graphics cards.
Disadvantages
Higher GPU workload.
Lower FPS compared to upscaling technologies.
No AI image reconstruction.
When To Use TAA
TAA is an excellent choice if:
You have a powerful GPU.
You value image quality.
You fly IFR.
You spend lots of time reading cockpit instruments.
You don’t need maximum FPS.
3. DLAA
DLAA stands for:
Deep Learning Anti-Aliasing.
It uses NVIDIA’s Artificial Intelligence technology.
Unlike DLSS…
DLAA renders at native resolution.
Instead of increasing FPS…
Its goal is maximum image quality.
Advantages
Extremely sharp image.
Excellent cockpit clarity.
Very little shimmering.
Outstanding anti-aliasing quality.
Native resolution rendering.
Disadvantages
Higher GPU workload.
Lower FPS than DLSS.
Only available on supported NVIDIA RTX graphics cards.
When To Use DLAA
Choose DLAA if:
Your GPU has plenty of performance available.
You fly airliners.
You prioritise image quality.
You want the sharpest cockpit displays possible.
4. DLSS
DLSS stands for:
Deep Learning Super Sampling.
This is one of NVIDIA’s biggest graphics technologies.
Instead of rendering every frame at full resolution…
The GPU renders the image internally at a lower resolution.
Artificial Intelligence then reconstructs it back towards your target resolution.
This significantly reduces GPU workload.
Example
Imagine painting a huge picture.
Instead of painting every tiny detail yourself…
An AI assistant finishes much of the work.
That’s essentially what DLSS does.
DLSS Quality Modes
DLSS usually offers several modes.
Ultra Quality (if available)
Quality
Balanced
Performance
Ultra Performance
Quality Mode
Highest image quality.
Smaller FPS improvement.
Recommended for most users.
Balanced Mode
Good compromise.
Higher FPS.
Slight reduction in sharpness.
Performance Mode
Designed for higher resolutions.
Larger FPS increase.
Noticeably softer image.
Ultra Performance
Maximum FPS.
Lowest image quality.
Usually intended for very high resolutions such as 8K.
Not recommended for most MSFS users.
Advantages Of DLSS
Higher FPS.
Lower GPU workload.
Lower GPU temperatures.
Useful for 1440p.
Excellent for 4K.
Works very well with Frame Generation.
Disadvantages
Slightly softer cockpit displays.
May introduce ghosting in some situations.
Some shimmering can occur depending on the scene.
Small text may appear less sharp than TAA or DLAA.
When To Use DLSS
Ideal if:
Your GPU is the bottleneck.
You play at 1440p.
You play at 4K.
You own an RTX graphics card.
You want higher FPS.
5. AMD FSR
FSR stands for:
FidelityFX Super Resolution.
This is AMD’s image upscaling technology.
Like DLSS…
FSR renders internally at a lower resolution before reconstructing the image.
Unlike DLSS…
It does not rely on dedicated AI hardware in the same way.
Advantages
Higher FPS.
Works on many AMD graphics cards.
Also supports many NVIDIA graphics cards.
Lower GPU workload.
Good option for mid-range systems.
Disadvantages
Image quality can vary depending on the version and implementation.
May show more shimmering or softer details than DLSS in some scenes.
When To Use FSR
Use FSR if:
You own an AMD GPU.
Your GPU is the limiting factor.
You need extra performance.
DLSS is unavailable.
6. Intel XeSS
XeSS stands for:
Xe Super Sampling.
Intel developed XeSS as another image upscaling solution.
It aims to improve performance while maintaining good image quality.
Depending on the hardware, XeSS can use dedicated acceleration or run in a more general compatibility mode.
Advantages
Improves FPS.
Works on Intel Arc GPUs.
Can also function on many other modern graphics cards.
Provides another upscaling option where supported.
Disadvantages
Availability depends on the game.
Performance and image quality vary by hardware.
Not every version of Microsoft Flight Simulator includes XeSS support.
When To Use XeSS
Consider XeSS if:
You own an Intel Arc GPU.
It is available in your version of the simulator.
You wish to compare it against TAA, DLAA or DLSS on your own system.
7. Image Quality Comparison
Let’s compare the visual quality.
DLAA
Outstanding image quality.
Very sharp cockpit displays.
Minimal shimmering.
Excellent edge smoothing.
Highest GPU workload.
TAA
Excellent image quality.
Sharp instruments.
Very stable visuals.
Slightly less detailed than DLAA in some situations.
Works on almost all GPUs.
DLSS (Quality)
Very good image quality.
Excellent FPS improvement.
Cockpit slightly softer.
Very popular for 1440p and 4K.
FSR
Good image quality.
Higher FPS.
Can appear softer depending on hardware and implementation.
XeSS
Generally sits between TAA and FSR in image quality, though results vary depending on GPU and version.
8. Performance Comparison
Approximate GPU workload from highest to lowest:
- DLAA
- TAA
- XeSS
- DLSS Quality
- DLSS Balanced
- FSR Quality
- DLSS Performance / FSR Performance
Remember, actual results depend on your hardware and simulator version, so always test using your own performance baseline.
9. Which GPUs Support Which Technology?
TAA
Supported on:
- NVIDIA GTX and RTX series.
- AMD Radeon GPUs.
- Intel Arc GPUs.
Essentially any graphics card capable of running the simulator.
DLAA
Requires:
NVIDIA RTX graphics cards with Tensor Cores (RTX 20-series and newer).
Not available on GTX graphics cards.
DLSS
Requires:
NVIDIA RTX graphics cards (RTX 20-series, RTX 30-series, RTX 40-series and newer).
Not supported on GTX cards.
FSR
Supported on:
AMD Radeon GPUs.
Many NVIDIA GTX and RTX GPUs.
Intel Arc GPUs.
This broad compatibility is one of FSR’s strengths.
XeSS
Best supported on:
Intel Arc GPUs.
Compatibility with many modern NVIDIA RTX and AMD Radeon GPUs depends on the game’s implementation.
Choosing The Right Anti-Aliasing
Budget PC
- 1080p
- GTX or entry-level RTX
Recommended:
TAA or FSR (if available and it improves performance).
Mid-Range PC
- RTX 3060 / RTX 4070
- RX 7700 XT
Recommended:
DLSS Quality or FSR Quality, depending on GPU.
High-End PC
- RTX 4080 / RTX 5080
Recommended:
DLAA if image quality is the priority.
DLSS Quality if additional FPS is needed.
Ultra-End PC
- RTX 4090 / RTX 5090
Recommended:
DLAA for maximum image quality.
DLSS Quality combined with Frame Generation if chasing very high frame rates.
Student Exercise
Step 1
Open:
Options → General Options → Graphics → Anti-Aliasing
Record your current setting.
Step 2
Using your Module 1 benchmark flight, test:
- TAA (if supported)
- DLAA (if supported)
- DLSS Quality (if supported)
- FSR Quality (if supported)
- XeSS (if available)
Step 3
For each option, record:
- Average FPS
- Lowest FPS
- Image sharpness
- Cockpit clarity
- Shimmering
- GPU utilisation
- Overall smoothness
Step 4
Compare your results and decide which anti-aliasing method provides the best balance between image quality and performance for your own PC.
Lesson Summary
Congratulations.
You now understand one of the most important graphics settings in Microsoft Flight Simulator.
Remember:
- Anti-aliasing reduces jagged edges and shimmering.
- TAA provides excellent image quality and broad compatibility.
- DLAA delivers the highest image quality but demands more GPU performance.
- DLSS uses AI upscaling to improve FPS while maintaining strong image quality.
- FSR offers an excellent cross-platform alternative, particularly for AMD users.
- XeSS provides another modern upscaling option where available.
- There is no universal “best” setting—choose the option that best suits your hardware and flying style.
Knowledge Check
- What is anti-aliasing, and why is it important in Microsoft Flight Simulator?
- How does TAA differ from DLAA?
- What is the primary purpose of DLSS?
- Which NVIDIA graphics cards support DLSS and DLAA?
- Why might FSR be a good choice for AMD users?
- What are the advantages of DLAA over DLSS?
- Why should you compare image quality as well as FPS when choosing an anti-aliasing method?
- Which anti-aliasing option provides the best experience for your PC based on your benchmark testing?