Sunday, November 17, 2024
Laptops

WiFi 5 vs WiFi 6 vs WiFi 7 Comparison: Easy explanation + Table

Obviously, the latest is always going to be the best. However, to get the benefits of the latest WiFi , it isn’t enough to have a laptop with the latest WiFi Card. Your router and your laptop must both support the latest. 

The following are the currently three generations available on both laptops and desktops as of October 2024. Don’t worry about the jargon, I’ll go over what it means for those who want to understand everything. 

Let’s go over the jargon then explain what the actual performance differences are. If you want to avoid the jargon and want to get straight into the performance differences with real world examples, jump to the next section. 

Max Speed: I don’t have to explain what speed is. Basically WiFi 6 and 7 have several times (at least on paper) the speed of WiFi 5. We’ll talk about how these max speeds translate to real world applications soon.

Frequency Bands: In the context of communications, frequency bands are like “high ways”. Generally, the higher the frequency band, the less crowded the “high way” (not many devices use higher frequencies). This means there will be less “traffic” or “interference” thus giving you faster speeds. 

Channel Width:  Likewise, the higher the channel width , the better. It means the “highway” is wider so more “cars” or data can flow per given time. WiFi 7 allows for TWICE the amount of data than WiFi 6 and 5.

(MU-MIMO) Device Capacity: Having this feature means the router will be able to support SEVERAL DEVICES at once. If you live in a big house with lots of devices, you always want to choose the latest WiFi for your router. It means more and more devices will be supported without slowing down performance significantly.

Effiency (OFDMA & Target WakeTime): OFDMA is a more efficient technique to sending/receiving signals which reduces interference and improves speed. Both OFDMA and TWT make sending/receiving signals more efficient as well as reducing energy consumption. They both work together by going to stand by mode when there’s no signal activity.

Latency: This form of latency means the response time between the router and your device. It’s not related to internet speed, bandwidth , etc, but how fast they interact with each other, this doesn’t necessarily give you more speed but improves the experience in applications like gaming (FPS games that depend on latency in a shoot out), Online VR and more importantly STREAMING, the “lag” between the viewer and you might be reduced with the latest WiFi.

Difference between WiFi Generations

Screenshot

1. WiFi 5 (802.11ac)

  • Speed: Faster than WiFi 4, especially in environments with a couple of devices. WiFi 5 is enough for gaming, streaming and everyday tasks.
  • Range:It’s best suited for short distances. Say every device on the first floor. If you’re going to have devices on lower and upper floors using it. You want to buy a repeater. The 5GHz band used in this generation doesn’t penetrate well through walls so the repeated must be strategically placed as well.
  • Capacity: Supports lots of devices but you will experience slower speeds in places where too many devices are connected.

2. WiFi 6 (802.11ax)

  • Speed: WiFi 6 offers faster at home and faster speeds in congested networks as well. 
  • Range:This operates at a lower frequency ( 2.4 GHz band ) thus it’s much more efficient at delivering signal through walls. 
  • Capacity: Way better at handling multiple devices. This is the ideal choice for a house that uses lots of wireless devices (smart homes) or any environment (office building) with multiple devices. 

3. WiFi 7 (802.11be)

  • Speed: WiFi 7 offers extremely fast speeds, ideal for bandwidth-intensive applications such as 8K video streaming, VR, and cloud gaming.
  • Range: Because it operates at multiple frequency bands, it’s much more efficient with higher distances and penetrating walls.
  • Capacity: This new protocol is designed to handle several devices. This would be the most efficient/best option for congested environments like buildings, schools and smart homes.

When Choosing a Laptop

Basic Tasks: WiFi 5
If you’re mainly doing everyday tasks like browsing the web, watching videos, and sending emails, a laptop with WiFi 5 is generally fine.

Homes/Office: WiFi 6
This is better if you’re working in a busy home or office with multiple devices connected at once. It offers faster speeds and better efficiency, especially when using apps that require fast data, like video conferencing or cloud storage.

VR/AR/Twitch Streaming/4k-8k/Gaming: WiFi 7
If you’re serious about your work, you want a laptop with WiFi 7. This generation can handle high-bandwidth activities like 4K/8K video editing, gaming, or working with virtual reality (VR) or augmented reality (AR), WiFi 7 will give you an edge over your competition, though I must admit it may be overkill today but it may not be so next year as more and more applications adapt to its high-speed bandwidths.

Battery Life: WiFi 6 and 7
Both use Target Wake Time (TWT) to help improve battery life. If you want your laptop battery to last longer while using WiFi (especially in standby or low-activity modes), you want WiFi 6 or 7 with 7 being more efficient with this feature.

Latency:  WiFi 7
If you play online games, stream in 4K, or use video conferencing tools like Zoom frequently, a laptop with WiFi 6 or 7 can offer lower latency (less lag) and faster speeds, making your experience smoother. If you’re making a LIVING out of streaming, gaming or any kind of LIVE activity you want to choose WiFi 7 over WiFi 6.

When Choosing a Router

  1. Number of Devices:
    • MU-MIMO: If you have a lot of devices (smartphones, smart TVs, laptops, gaming consoles, smart home devices), MU-MIMO is crucial. Routers with WiFi 6 or WiFi 7 can handle more devices simultaneously, so the internet doesn’t slow down when everyone is connected. 
  2. WiFi Coverage
    • If you have a large home or work in an area with a lot of interference (like apartment buildings with many WiFi networks), choosing a router with WiFi 6 or WiFi 7 can help because they use more frequency bands and are better at avoiding interference. 
  3. Future-Proofing
    • WiFi 7 offers extremely high speeds and low latency. If you’re investing in a router today and want it to last for several years while new tech like 8K video streaming or VR becomes more common, WiFi 7 is a good investment, even though most users won’t need those extreme speeds right now. 
  4. Smart Homes
    • If you have a lot of smart home devices (like smart lights, thermostats, cameras), choosing a router with WiFi 6 or WiFi 7 helps because they handle multiple devices more efficiently without slowing your network down.

Conclusion

If you’re just browsing the web, streaming regular HD or even 4K video, and have a few connected devices, WiFi 5 or WiFi 6 will meet your needs.

WiFi 7 is mainly for people who want to future-proof their setup or need ultra-fast speeds and low latency for gaming, 8K video, or VR/AR.

Author Profile

Miguel Salas
Miguel Salas
I am physicist and electrical engineer. My knowledge in computer software and hardware stems for my years spent doing research in optics and photonics devices and running simulations through various programming languages. My goal was to work for the quantum computing research team at IBM but Im now working with Astrophysical Simulations through Python. Most of the science related posts are written by me, the rest have different authors but I edited the final versions to fit the site's format.

Miguel Salas

I am physicist and electrical engineer. My knowledge in computer software and hardware stems for my years spent doing research in optics and photonics devices and running simulations through various programming languages. My goal was to work for the quantum computing research team at IBM but Im now working with Astrophysical Simulations through Python. Most of the science related posts are written by me, the rest have different authors but I edited the final versions to fit the site's format.

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