TechSpot published Transfer Steam Games to an SSD without Redownloading
A quote from the article:
Although solid state drives have steadily increased in capacity, so too have the size of game installs. Today's triple-A titles commonly occupy upwards of 20GB with many approaching or exceeding 60GB, especially after accounting for downloadable content. Ironically, it's often these large releases that benefit the most from the improved load times.Transfer Steam Games to an SSD without Redownloading @ TechSpot