@pfBasic:
J3455 is a 1.5GHz CPU.
It can burst to 2.3GHz but won't do this unless it needs to and some set of criteria are met, when it does burst it will be for a short time.
There's another post on here with similar questions. It seems like there are some misconceptions about CPU clocks.
Always look at the base frequency when choosing a CPU, this is the reliable guaranteed value all of the time unless you thermally limit it and it decreases to keep from destroying itself. Boost and Turbo speeds are not always on and won't be achieved in all environments. If you put your CPU in a hot closet for example, it may never burst or turbo, or if it does it may not hit the maximum burst/turbo frequency.
@Runenaldo:
It seems that turbo boost to 2.2ghz is achievable for longer periods of time, at least in win 10 running prime95. The last 100mhz to 2.3ghz is another story though.
Also per another thread here on the forum, the "1" in 1501Mhz should indicate that it's capable of or running more than 1.5ghz (2.2ghz in the case of the J3455)
Thanks guys! I figured it was something like that.