固态硬盘（SSD） 和机 械硬盘（HDD） 优缺点比較

Attribute	SSD (Solid State Drive)	HDD (Hard Disk Drive)
Power Draw / Battery Life （功耗/电池寿命）	Less power draw, averages 2 – 3 watts, resulting in 30+ minute battery boost√ (更少的功耗，平均为2–3瓦，导致30分钟的电池升压)	More power draw, averages 6 – 7 watts and therefore uses more battery (很多其它的电力消耗。平均为6–7瓦。因此使用很多其它的电池)
Cost （成本）	Expensive, roughly $0.50 per gigabyte (based on buying a 1TB drive) (昂贵的。每GB大约0.50美元每千兆字节（基于购买一个1TB的硬盘）)	Only around $0.15 per gigabyte, very cheap (buying a 4TB model)√ (每GB仅仅有0.15美元左右，非常廉价（买4TB模型）)
Capacity （容量能力）	Typically not larger than 512GB for notebook size drives; 1TB max for desktops(笔记本一般不大于512GB ,台式机驱动最大为1TB)	Typically around 500GB and 2TB maximum for notebook size drives; 4TB max for desktops√ (笔记本驱动大小通常在500GB和2TB之间 ，台式机驱动最大为4TB)
Operating System Boot Time （启动时间）	Around 22 seconds average bootup time√ (启动时间在平均22秒左右)	Around 40 seconds average bootup time (启动时间在平均40秒左右)
Noise （是否有噪声）	There are no moving parts and as such no sound√ (有没有移动部件。因此没有声音)	Audible clicks and spinning can be heard (发声的点击和旋转能够听到)
Vibration （是否有振动）	No vibration as there are no moving parts√ (无振动，没有移动部件)	The spinning of the platters can sometimes result in vibration (的盘片旋转有时会导致振动)
Heat Produced （热量产生情况）	Lower power draw and no moving parts so little heat is produced√ (低功耗、无运动部件非常少的热量产生)	HDD doesn’t produce much heat, but it will have a measurable amount more heat than an SSD due to moving parts and higher power draw (硬盘不产生大量的热，但会有一个可衡量的数量比因为运动部件和高功率画一个SSD更热)
Failure Rate （故障率）	Mean time between failure rate of 2.0 million hours√ (平均故障率时间约为2000000小时)	Mean time between failure rate of 1.5 million hours(平均故障率时间约为1500000小时)
File Copy / Write Speed （文件复制/写速度）	Generally above 200 MB/s and up to 550 MB/s for cutting edge drives√ (刀刃驱动器一般在200 Mb / s和550 MB / s)	The range can be anywhere from 50 – 120MB / s (范围能够从50–120MB／s)
Encryption (支持加密情况)	Full Disk Encryption (FDE) Supported on some models√ (支持一些模型全磁盘加密（FDE）)	Full Disk Encryption (FDE) Supported on some models√ (支持一些模型全磁盘加密（FDE）)
File Opening Speed （读取文件速度）	Up to 30% faster than HDD√ (打开文件速度比HDD快高达30%)	Slower than SSD (比SSD慢)
Magnetism Affected? （与有磁性物体摩擦是否有影响）	An SSD is safe from any effects of magnetism√ (与磁性物体摩擦对SSD上存储的数据没有不论什么影响)	Magnets can erase data (与磁性物体摩擦会导致数据丢失)