Download bitrate
Indicates the amount of data your connection can receive in one second from the nPerf server. The highest the measured value, the best is the bitrate of your connection.

Upload bitrate
Indicates the amount of data your connection can send in one second to the nPerf server. The highest the measured value, the best is the bitrate of your connection.

Latency (ping)
Indicates the delay a small packet of data requires to make a round-trip from your computer to the nPerf server. The shorter the delay, the most reactive is your connection.