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Product Listing

ASUS RT-N56U Wireless-N Dual-Band Router - Bringing Sexy Back

By Andy Sim - 22 Nov 2010
Launch SRP: S$259

Performance - 2.4GHz

Test Setup

To create a wireless network scenario, our routine test setup typically includes a desktop PC, the reviewed router, and a wireless client. The desktop system (with a Gigabit Ethernet port) is designed to simulate a host machine, while the router in question acts as the gateway. And lastly, a notebook plugged with a dual band Wireless-N USB adapter fulfills the role of a wireless remote client.

To gauge the router's peak potential and to prevent any possibility of varying wireless standards used, the evaluated router is locked down at the 802.11n-only mode if its features allow us to do so. The QCheck application provides an indication of the wireless throughput (TCP) and streaming (UDP) finesse between the host and client endpoints. TCP throughputs are measured against a 1MB data packet, whilst any significant packet loss is registered with the UDP test. On the other hand, NetIQ's Chariot benchmark offers a more detailed account with average throughput and response time readings recorded over 30 seconds, based on a High Performance throughput script. Range is determined by the distance between the router and wireless client. Now, let's run through the results proper.

Chariot and QCheck Performance Testing 

ASUS RT-N56U Wireless Performance Results - 2.4GHz Band
Average Downlink Throughput (Mbps) - Chariot Average Uplink Throughput (Mbps) - Chariot Downlink TCP Throughput of 1MB (Mbps) Uplink TCP Throughput of 1MB (Mbps) UDP Streaming (kbps) Time to transfer 1GB Zip file
77.584 84.225 91.954 96.386 998.837 (0.0% loss) 1 min 52 seconds
89.714 116.271 88.889 67.797 1,000,136 (0.0% loss) 1 min 26 seconds
36.878 37.541  13.769 11.958 997.343 (0.0% loss) N.A.
2m with WPA2-AES
60.933 65.302 15.873 16.667 997.045 (0.0% loss) N.A.

As you can see from our table of results, the ASUS RT-N56U managed to deliver robust downstream throughputs within the 10 meter range. Interestingly, a faster data speed of 89.714Mbps was measured at the 10-meter mark, compared to a cozier range of two meters with a smaller figure of 77.584Mbps. Note that these numbers are crunched on the 2.4GHz band without any encryption. Also, the router offers 13 radio channels, and we've locked on the fifth channel for our tests. Moving on, even at a further throw of 25 meters, the N56U did hold its own with a stable throughput of 36Mbps for both uplink and downlink tests on the Chariot benchmark. Furthermore, it showed further resilience for UDP Streaming, which was a lossless affair with data arriving intact at the end points. That's right, no signal dropouts were encountered across. Most of all, the RT-N56U managed to transfer a 1GB file below two minutes when tested at 2 and 10 meters. This is by far one of the most impressive results we have observed with a ratified N-router. If you think the networking device did well on the 2.4GHz band, well, wait till you check out the router's 5GHz performance.   

A summary of the RT-N56U's downstream throughputs on the 2.4GHz band. Data speeds fell within the 50Mbps to 100Mbps range across the tested distances. Notice how results gathered at 10 meters actually surpassed those measured at a closer range of 2 meters. Click on image for a larger picture.

Summary of uplink throughputs - Yet again, the router fared better at 10 meters than point blank range. This is rather encouraging since most of us tend to negotiate our wireless clients at that range within our home network.


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  • Design 9
  • Features 9
  • Performance 9
  • Value 8.5
The Good
Attractive Design
Simultaneous Dual Band
Exemplary Performance On 5GHz
The Bad
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