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Where there is still a jump in price, however, is routers. When it comes to pricing most devices you buy have already integrated 802.11ac so you won’t be consciously paying more for it. Some devices are still use ‘Draft’ 802.11ac and while they tend to work fine and should eventually update, it isn’t guaranteed. One caveat: make sure you find officially certified devices (using the official WiFi logo). Thirdly with proliferation comes scales of economy which bring down the price. Secondly it is more battery efficient because WiFi needs to be active for less time when data transfers can complete more quickly. Firstly there are obvious performance benefits, particularly for single antenna devices like smartphones.

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Now it is built into every premium smartphone, tablet, laptop and smart TV and is increasingly found in midrange devices as well. 12 months ago 802.11ac equipment was hard to find and extremely expensive. Of course these figures are a general guide and I’ll get into examples of more specific top 802.11ac devices to buy next.Ĩ02.11ac ns 802.11n Availability and Price

802.11n at one metre: 30MBps, 10 metres: 20MBps and at 20 metres behind two solid walls: 5-10MBps.

802.11ac at one metre: 90MBps, 10 metres: 70MBps and at 20 metres behind two solid walls: 50MBps.

Peak performance may be tripled, but at range 5-10x the speed benefits are not unusual and this is where 802.11ac comes into its own. Yes it is still a good idea to position your router centrally, but it helps make it less vital.Īll this means the performance of 802.11ac is maintained far better at long range than 802.11n.

It is built into the 802.11ac specification and is ‘smart signal’ which detects where connected devices are and increases signal strength specifically in their direction. This is why you should place your router as close to the centre of your home or office and as high up as possible.īeamforming is different.

Typically wireless signal is simply thrown out from your router equally in all directions, like ripples when throwing a stone into a pond.

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Why? Firstly because 2.4GHz is used for everything from cordless home phones to microwaves and 5GHz remains relatively interference free for a cleaner signal.

That said my experience testing both standards finds very little difference in signal strength between 802.11ac over 5GHz and 802.11n over 5GHz and 2.4GHz. Higher bands are faster but lower bands travel further. In fact 802.11ac uses the 5GHz band while 802.11n uses 5GHz and 2.4GHz. It’s speeds at long range are.įirst the bad news: 802.11ac WiFi doesn’t really reach any further than 802.11n WiFi. So AC WiFi is much faster, but its peak speeds are not really the selling point. Especially when it comes to the next big benefit of 802.11ac…īeamforming 'Smart WiFi' - image credit Netgear This is something of a downer, but these speeds are still faster than nearly all home broadband connections and only become a limitation for transferring files wirelessly between devices on your local network (say laptop to laptop or desktop to NAS).įurthermore 802.11n only supports up to four antennas at roughly 100Mbps (12.5MBps) each so when you do the maths for devices using 802.11n antennas the gap begins to widen. If your glorious four antenna 802.11ac router is connecting to your single antenna 802.11ac smartphone then 400Mbps (50MBps) is your theoretical maximum and 200Mbps (25MBps) is the more realistic one.

Laptops: 2 antennas (occasionally 3 on desktop replacements).

The reason is because antennas add cost and take up space and the smaller the device the less antennas they can fit so it becomes pointless adding more to a router. Long term 802.11ac has the headroom to support up to eight antennas each running at over 400Mbps each, but the fastest router to date only has four antennas. By contrast 802.11n tops out at about 240Mbps (30MBps) so the 3x estimate is still true, just much lower.īut there is one more crucial part to understand for your real world experience: antennas. In the real world no-one ever gets close to theoretical speeds and the fastest 802.11ac real world speeds recorded in testing are around 720Mbps (90MBps). This is 3x faster than the typical 450Mbps speed attributed to 802.11n. WiFi is always promoted using ‘theoretical’ speeds and by this standard 802.11ac is capable of 1300 megabits per second (Mbps) which is the equivalent of 162.5 megabytes per second (MBps).