AWS - Cloud Front Distribution (vs) Transfer Acceleration

	Cloud Front Distribution	Transfer Acceleration
Network	Uses optimized network path as Edge location	Uses optimized network path as Edge location
Request	Only first time the response comes from S3 bucket,  subsequent responses comes from Edge location.	Everytime response comes from S3 bucket
		if there is no significant improvement in retrieval time, AWS will skip the Transfer Acceleration path and transfer the data using normal network.
Cache	Caches data in Edge location	No Caching
File Size	Amazon suggests in FAQs to use CFD if the object  size is less then 1GB, for PUT/POST commands for optimal performance	Transfer Acceleration optimizes the TCP protocol and adds additional intelligence between the client and the S3 bucket, making Transfer Acceleration a better choice if a higher throughput is desired

Transfer acceleration rather expensive when compared with using a cloud front distribution with an advantage of auto opt out when acceleration is not so effective