RT-87U for Cox Gigablast or upgrade router

[Amgclk65]

hello.
New to the forums. Quick question for the experts here. I upgraded to Cox Gigablast internet. After running some speed tests via ac WiFi. I’m thinking I need to upgrade. It appears to be maxing out at 500mbps. Ethernet is good. 700-850mbps. My 87u is running the latest stable Merlin firmware. I did a factory reset as well, Which helped my WiFi speeds. It was stuck at 250-300mbps .
So my question is . Do I need to upgrade my router to attain 700-900mbps speeds via WiFi? Or can my RT-87U supply those speeds ? Granted I haven’t seen it do it yet. Modem is SB8200.
Any info would be awesome

 

[EmeraldDeer]

500 Mbps sounds about right for commonly available devices such as an iPhone or iPad which can do two stream 802.11ac 80 MHz wide.

The latest devices might do a little better than 500 Mbps if the router and device support MCS 11 1024 QAM (MCS 9 256 QAM is more typical)

There are only a few devices which can do two stream 160 MHz.

Usually it is just router to router which can do four stream.

I am not aware of any 802.11ax devices.

Websites in general cannot deliver 500 Mbps.

 

[Amgclk65]

Okay.
So buying a RT-AX88U isn’t going to improve my WiFi speeds on the latest iPhones and iPads ? I got rolled up in the gigabit internet tape. Thinking my iPhone XS Max should be seeing 700-900mpbs speeds.

 

[EmeraldDeer]

Okay.
So buying a RT-AX88U isn’t going to improve my WiFi speeds on the latest iPhones and iPads ? I got rolled up in the gigabit internet tape. Thinking my iPhone XS Max should be seeing 700-900mpbs speeds.

The question is whether the Broadcom non-standard 1024 QAM implementation in the RT-AX88U is compatible with Apple's non-standard 1024 QAM implementation in the iPhone XS. I have not seen a credible claim of real world 1024 QAM throughput yet.