QUOTE(CYT9999 @ Feb 10 2019, 11:28 PM)
Thanks for your reply. I was testing on my rampage v edition 10 build with i7-6950x cpu overclocked to 4ghz with samsung 950pro nvme SSD drive. I think my system should be more than capable to handle that. I use Google chrome browser and also Microsoft edge browser to test and the same Speedtest.tm.com.my site as shown in your attached image. Running windows 10 1809. From google search, one chap recommeded turning off antivirus software as it lowered his speed test result. So I just temporarily disabled my mcafee internet security suite during testing and closed all background programs I am running. Only chrome or edge browser is running with one tap opened during Tm speed test.
Sounds like an awfully good Windows system. You shouldn't even have to turn off anything or ensure that speedtest is the only thing running to get 800Mbps. I did my speedtests on a much older i7-4850 (2013 MacBook Pro.)
johnlai Any chance that Spectre/Meltdown mitigations will be able to bring an i7-6950x to its knees or will it just power through them?
QUOTE(CYT9999 @ Feb 11 2019, 12:27 AM)
Shortly replying to your post, I decided to use FireFox browser since you have used it in your attached image to check whether the culprit is due to browsers. Viola!! My download speed now consistently stays at 750mbps and above. Google Chrome browser and Microsoft Edge are limiting my download speed on my windows 10 1809 system!!. I have no idea why the popular google chrome browser with the latest version is limiting my download speed on my system. Same goes to Edge browser. Thanks Bro ! I can now proceed to upgrade my router to ac3150 model to enjoy higher WiFi download speed. Thanks for mentioning about the impact of browser.

I have the same experience, all Chromium based browsers (Safari, Chrome, Brave, Opera) are slower for some reason. Gecko, or is it called Quantum now, based ones such as Firefox and Waterfox fare better.
Have you tried the the speedtest app from Windows store? That should remove the browsers from the equation. Try with OVH.net SG. I get the most consistent 800Mbps speedtests with them.
This post has been edited by soonwai: Feb 11 2019, 12:45 AM