I was about to buy Intel 330 SSD but was stumbled upon an article saying the Sandforce controller is not capable of AES 256. Should I worry about it? What real life HDD activity uses AES 256 features?
AES support in the hardware controller is used for full disk encryption (with the AES algorithm). It is put in the chip to make FDE less hard on the CPU, as it then can fully be handled by the dedicated hardware in the SSD/HDD controller. If you are not planning on using full-disk encryption, it won't matter at all, if you are planning on using it, you will only suffer a small performance penalty if you buy a SSD without hardware AES support.