Nighthawk App Speed Difference

As previously stated, both apps are based on the gateway(AT&T) & router(Netgear RAX48), so a Wifi connection doesn't affect the speed test results. The "Speedtest Powered" code is not to blame. Essentially, the Netgear RAX48 hardware just isn't capable of accurately measuring download speeds on a 1 Gbps internet connection. During a RAX48 initiated speed test, all of the 3 RAX48 processor cores are loaded less than 10%. However, the memory usage is 481MB out of 496MB or approximately 97% usage. My conclusion is that there just simply isn't enough memory on the RAX48 for an accurate speed test, despite the "Ideal for Gigabit Internet Speeds" claim on the RAX48 packaging. Quite disappointing.