MMCplus和MMCmobile哪个好？

两者侧重点不同：MMCPlus侧重于数码影像及其他数据密集应用，如数码相机、数码摄像机等。它的体积比MMCmobile大，所需电压也只有2.7V~3.6V一种规格；MMCmobile的体积相当于RS-MMC的体积，工作电压有1.65V~1.95V和2.7V~3.6V两种规格，适用于对尺寸空间和电池续航能力要求很高的手机及其它手持便携式设备。不过，它们俩的速度是一模一样的。所以说，如果只说性能的话，两者是一样一样一样~~的。

The specification further defines two card types, MMCplus and MMCmobile, to describe R/W or ROM
cards with specifically defined mandatory features and attributes. Only cards meeting MMCplus or MMC-mobile requirements are eligible to carry the MMCplus or MMCmobile name and logo.
• MMCplus is defined as normal size R/W or ROM cards that supports 2.7-3.6V operation, x1/x4/x8 bus
widths.
• MMCmobile is defined as reduced size R/W or ROM card that supports 1.70-1.95V and 2.7-3.6V oper-ations, x1/x4/x8 bus widths, minimum of 2.4MB/s read/write performance.
Both implementations are backwards compatible with MMCA System Specification versions 3.xx in max
20MHz clock frequency mode.