Is there any big perfomance difference between RenderPartial and Partial?

Question

Also RenderAction and Action. RenderXXX akaik write directly to response stream and XXX use additional string buffer. I don't really want doing benchmark my myself, so maybe someone already do it.

Answer 1

Until it becomes a bottleneck in your application, I wouldn't worry about it. Spend time on things that matter: like building an application people want to use.

Answer 2

George Stocker is correct but I wanted to add that I'm pretty sure RenderPartial and Partial follow the same code paths. Same for RenderAction and Action. RenderPartial will always be faster than RenderAction because your not simulating a new request.