What is the main difference between Dell Datacenter and Enterprise Nvme Discs?

We are planning to purchase a Dell PowerEdge 7625 Server. I need to make a logical choice about disc selection. When I look at the prices below, it is more attractive to choose a 7.68Tb Datacenter disc at the same price instead of 3.84TB Enterprise Nvme as price performance. Why is the price the same although the disc sizes are the same? 

3.84TB, Enterprise, NVMe, Read Intensive, U2, G4, P5520 with carrier  Price : $3,954.83 /ea.

7.68TB Data Center NVMe Read Intensive AG Drive U2 Gen4 with carrier Price : 3,979.70 /ea.

How can I see the detailed properties of these discs? 

We will run Electronic Design Automation (EDA) Workloads in our environment. Under these conditions, 7.68TB 6 Raid 10 or Raid 5 structure makes sense as price performance. What should I pay attention to when choosing? 

Thankyou for support.