Does a SSD page size > filesystem block size increase SSD write amplification

ssd

After reading up on SSD technology, there's a question I can't seem to answer.

Judging by this Anandtech review, most current SSDs use at least a 8KB page size. As far as I understand, this means that no less than 8KB can be written to the SSD's NAND at once. Apparently, this helps for random writes as well as other things.

However, many current filesystems use a 4KB block size. Does this mean that, for a single 4K write, the SSD write amplification is at least 2, since a whole 8KB page is written? What about random 4K writes?

The filesystem block size is the smallest addressable unit for the filesystem. Filesystem requests are passed to the device driver to get the data from the disk. The device driver will convert into device block requests based on the logical/physical block sizes of the disk. On Linux you can see e.g. /sys/block/sda/queue/logical_block_size and /sys/block/sda/queue/physical_block_size.