How fast is the cheapest Internet connection from spectrum cable company? Spectrum advertises fiberoptic Internet for $24.99 a month, and in this video, I do a Speed test of the cheapest Internet you can buy from spectrum. Fiberoptic Internet is supposed to be very fast in both upload and download speed, and in this video, I tested both and found that the upload speed is very very fast on spectrum Internet’s cheapest plan, but, the upload speed is pretty slow. With other internet carriers, I’ve been able to ask them to speed up the upload speed, and they’ve done it. For $24.99 a month, I’m very happy with the download speed, and it works great for all kinds of streaming.