Windows BitLocker vs. hardware encryption of hard drive (performance?)
Posted on 2012-09-14
Looking into buying a new laptop (Windows 7) and want opinions about using software to encrypt the hard drive. The last 2 laptops I bought were Lenovas with Self-Encrypting Drives (SED). In other words, they're hard drives that are automatically encrypted at the hardware level (both the disk and the BIOS are password protected).
However, it seems like very few laptops are available with SED, and I'd like to consider other options than Lenova.
I understand BitLocker is built into Windows 8, so I assume it's implementation is pretty seamless and (I assume/hope) optimized for efficiency. Still, it seems like there's no way software encryption, performed by the CPU, is going to be comparable to SED.
Or, in the "real world," am I wrong, and the differences are negligible?