Throughput vs. Attenuation - 5 GHz
The 5 GHz downlink plot shows a clear poorest performer, TRENDnet's TEW-818DRU, with both lowest throughput and earliest disconnect at 33 dB. It a bit tough to judge, but I'd call the overall winner for this benchmark as NETGEAR's R7000.
Although the ASUS RT-AC68U disconnected at 39 dB, the slope of its curve tells me it perhaps could have made it all the way to 42 dB. Then again, the R7000's slope says it might have made it all the way to 45 dB.
Throughput vs. Attenuation - 5 GHz downlink
5 GHz uplink again shows the NETGEAR as the best of the bunch, although Linksys' WRT1900AC plotline runs above it most of the way until the 18 dB attenuation point. The comments above regarding the R7000 and RT-AC68U's potential range given their plotline slopes also apply here, too.
Throughput vs. Attenuation - 5 GHz uplink
The bottom line of the retest is best summarized by the Router Ranker, which shows the NETGEAR R7000 original Nighthawk retains the top spot for total router ranking, which includes wired routing and wireless performance. The Linksys WRT1900AC moves up two spots to #2 and the ASUS RT-AC68U moves down one slot to #3.
AC1900 Total Router Ranking - New & Old
But best overall rank doesn't necessarily mean that a product scores #1 in all sub-rankings. The composite of the top three ranked routers' performance summaries shows the only #1 wireless subrank for the R7000 is in Wireless Range. The ASUS RT-AC68 in the #3 slot earned #1 rankings only for a few 2.4 GHz benchmarks.
AC1900 Router Performance Summary Detail - Top 3 routers
The V8 wireless test process is definitely tougher than the V7. All tests are used instead of just the best test run and the 360° rotation during test makes it much more difficult for products to maintain a connection at low signal levels. While the specific rankings and throughput measured have changed, it looks like the results come out about the same: the NETGEAR R7000, ASUS RT-AC68U and Linksys WRT1900AC are the best of the bunch of AC1900 routers.