The Turbo Boost never really work right. Many people have had problems with it and leaving it disable will not hurt you. The CPU runs at 4.0 and the boost only gives a little 4.2. So you really not going to see a difference. Plus on the Turbo boost it really in a way a fake OC. You really should always disable it when to are doing test.
Plus this is just me I don't OC, Benchmark, or stress test anything. I have been doing this to many years to worry about the small stuff. I know what my computer can do. I don't need some program to tell me what I already know.
I have learn many years ago that that when I'm build a computer that if i go with this CPU or that memory that not as fast as something else. You really not going to see a big difference.
I'm not taking anything away from you. Enjoy on what you are doing because everybody has they own thing they like.