Internet speedHow fast is this?What you can do0–5MbpsVery slowSend emails, search on Google, stream video in SD on one device5–40MbpsSlow to moderateStream video in HD on three or four devices, play online games40–100MbpsModerate to fastStream easily on multiple devices in HD or 4K, download big files quickly, run several smart devices100–500MbpsVery fastStream in 4K on more than five devices simultaneously, download massive files quickly, host a livestream500–1,000+MbpsExtremely fastStream in 4K on 10+ devices, run 10+ smart-home devices at a time, do basically anything on lots of devices1,200–5,000MbpsFaster than you needOperate a bitcoin-mining farm with two dozen computers, watch Frozen in 4K on 100 devices at the same time, Use Speedtest on all your devices with our free desktop and mobile apps., How fast is your download speed? In seconds, FAST.com's simple Internet speed test will estimate your ISP speed..