No they are different. Basic collagen is **** cheap stuff but has benefits and I use it daily. Beef protein isolate is different.So is the consensus beef protein is same as collagen? Because the price difference could be helpfull.
Collagen does not have a complete amino acid profile whereas beef does. Collagen is made primarily of three amino acids - proline, hydroxyproline and glycine. In collagen the glycine and proline are 10-20 times more concentrated than in other proteins. Beef protein has reasonable levels of these but they're at nowhere near the levels of the collagen protein. Collagen has a unique structure that can't be found anywhere else.
Basic collagen would not do what is seen here:
The effects of beef protein isolate and whey protein isolate supplementation on lean mass and strength in resistance trained individuals - a double blind, placebo controlled study
As per TrueNutrition:
Beef Protein Isolate is unlike any other protein powder on the market. Beef flesh is first boiled down in huge vats to produce a nutrient-enriched liquid containing incredibly high amounts of each of the essential and branched chain amino acids. This liquid form is then skimmed to have all fat and carbohydrate content removed, leaving a protein concentration of over 98% aminos left in the remaining material. From here, the liquid beef aminos undergo a spray-drying process in order to create the finished powder product.