Qualcom Atheros QCA6174 802.11ac (nb13) vs. Atheros AR9285 802.11n (nb-sat4)

ping.txt

# litvax - wired connection
litvax:~ mz0$ ping 107.173.176.5
PING 107.173.176.5 (107.173.176.5): 56 data bytes
64 bytes from 107.173.176.5: icmp_seq=0 ttl=47 time=130.257 ms
64 bytes from 107.173.176.5: icmp_seq=1 ttl=47 time=130.071 ms
64 bytes from 107.173.176.5: icmp_seq=2 ttl=47 time=130.027 ms
64 bytes from 107.173.176.5: icmp_seq=3 ttl=47 time=130.117 ms
64 bytes from 107.173.176.5: icmp_seq=4 ttl=47 time=130.535 ms
64 bytes from 107.173.176.5: icmp_seq=5 ttl=47 time=130.097 ms
64 bytes from 107.173.176.5: icmp_seq=6 ttl=47 time=129.882 ms
64 bytes from 107.173.176.5: icmp_seq=7 ttl=47 time=130.106 ms
64 bytes from 107.173.176.5: icmp_seq=8 ttl=47 time=129.965 ms
64 bytes from 107.173.176.5: icmp_seq=9 ttl=47 time=129.917 ms
64 bytes from 107.173.176.5: icmp_seq=10 ttl=47 time=130.006 ms
64 bytes from 107.173.176.5: icmp_seq=11 ttl=47 time=134.085 ms
64 bytes from 107.173.176.5: icmp_seq=12 ttl=47 time=130.406 ms
64 bytes from 107.173.176.5: icmp_seq=13 ttl=47 time=130.178 ms
64 bytes from 107.173.176.5: icmp_seq=14 ttl=47 time=130.140 ms
--- 107.173.176.5 ping statistics ---
15 packets transmitted, 15 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 129.882/130.386/134.085/1.003 ms

# AR9285
nb-sat4 $ ping -c18 107.173.176.5
PING 107.173.176.5 (107.173.176.5) 56(84) bytes of data.
64 bytes from 107.173.176.5: icmp_seq= 1 ttl=47 time=131 ms
...
64 bytes from 107.173.176.5: icmp_seq=18 ttl=47 time=130 ms

--- 107.173.176.5 ping statistics ---
18 packets transmitted, 18 received, 0% packet loss, time 17021ms
rtt min/avg/max/mdev = 130.705/131.664/140.723/2.271 ms

# QCA6174
nb13   $ ping 107.173.176.5
...
64 bytes from 107.173.176.5: icmp_seq=14 ttl=47 time=334 ms
64 bytes from 107.173.176.5: icmp_seq=15 ttl=47 time=145 ms
18 packets transmitted, 18 received, 0% packet loss, time 17027ms
rtt min/avg/max/mdev = 145.417/234.978/334.332/63.217 ms

100 packets transmitted, 100 received, 0% packet loss, time 99152ms
rtt min/avg/max/mdev = 132.281/246.470/485.939/65.210 ms

100 packets transmitted, 100 received, 0% packet loss, time 99063ms
rtt min/avg/max/mdev = 132.637/252.857/519.240/75.076 ms

Signal  Noise   Receive rate              Transmit rate
 AR9285 >
-42 dBm	-95 dBm	65.0 Mbit/s, MCS 7, 20MHz	 65.0 Mbit/s, MCS  7, 20MHz
-41 dBm	-95 dBm	52.0 Mbit/s, MCS 5, 20MHz	 58.5 Mbit/s, MCS  6, 20MHz
QCA6174 >
-40 dBm	-95 dBm	 1.0 Mbit/s, MCS 0, 20MHz	104.0 Mbit/s, MCS 13, 20MHz
-33 dBm	-95 dBm	 1.0 Mbit/s, MCS 0, 20MHz	130.0 Mbit/s, MCS 15, 20MHz