1. Prime rib is taken from ribs six through twelve of the cow and is the only cut that can be genuinely called prime rib. 2. On the other hand, roast beef can come from the rump, shoulder, neck, or chest area.
The prime rib is located between the sixth and twelfth ribs of a cow. They are tender and juicy and can be prepared in several different ways.
Quality is the key to tender beef when choosing a cut for roasting. Since there are a dozen different cuts of beef that roast well, you have options when looking for cuts of beef that will suit your budget.