bfb86586_Test___Test_Your_ISP_Bandwidth__Why_It_Matters
[What's Measured] Download Speed [What Is It?] The capacity of information that can be received by your computer from the Internet. [How It's Measured] Measured in Mbps (Megabits per second) To convert to kbps (kilobits per second), multiply by 1000. [Why It Matters] 
You should have enough downstream capacity to accommodate office needs. VoIP calls, video streaming, web browser, and email transfers all require downstream throughput.
MegaPath Bandwidth Test | Test Your ISP Bandwidth
Why It Matters