Geek bench just tests the general purpose processor. Nothing fixed function would be tested as part of this. There are no tricks. It also has the GPU and bionic processors, but those are for special tasks and are not tested. The CPU would be running slower if those were contributing to the thermal envelope, but I think it is fair to omit that.

Theyâ(TM)ve already been iterating on this with the T2 chip.

AppStore software written in C++ compiles to LLVM bitcode and Apple can covert it to new processors in the cloud. Java and C# have runtimes and system libraries that are written in C/C++, so no change there.