Surface for Windows RT
Surface for Windows RT tablets will have ARM processors, and as the name implies run the Windows RT operating system (a Metro-centric version of Windows 8 designed for ARM chips). For more information on Windows RT and its limitations, check out Seth Rosenblatt’s CNET article, "Just what is Windows RT, anyway?(FAQ)."
Windows RT tablets will be 9.3mm thick and weigh just over 1.49 pounds. Along with the features mentioned above, they will feature a 31.5 Wh battery, microSD, USB 2.0, and Micro HD Video. They will be available in 32 GB and 64 GB versions.
Unfortunately, Microsoft didn’t announced the tablet’s retail price. The company would only say that the price of Windows RT Surface models would be comparable to other ARM tablets (think between $400 and $600).
Surface for Windows 8 Pro
Surface for Windows 8 Pro tablets will have Intel processors and run the Windows 8 Pro operating system. They will be 13.5mm think and weigh just under 2.0 pounds. The tablet will have a 42 Wh battery, microSDXC, USB 3.0, and Mini DisplayPort Video. It will be available in 64 GB and 128 GB versions. Again, the company didn’t announce specific pricing for these tablets, but they did say Surface for Windows 8 Pro tablets would be comparable to Intel Ultrabook-class PCs (likely around $1,000).
source: techrepublic
