Seagate 2TB HDD 2.5": Is it worth saving $20?

Seagate ST2000LM007 2TB 128MB Cache SATA 6.0Gb/s 2.5" Internal Notebook Hard Drive for $65.09

Seagate 2TB BarraCuda 5400 RPM 128MB Cache SATA 6.0Gb/s 2.5" Laptop Internal Hard Drive ST2000LM015 for $84.99

The latter is supposed to be "newer". Both 6GB/s interface and 5400 rpm.

Is one faster than the other?

For a data drive (have SSD for system and programs), is it worth paying $20 more?