No only different instruction set, but probably drastically different cache hierarchy and branch predictors. The tool cachegrind which they are using is simulating a program's effect on the cache and branch predictor, which will likely both be dramatically smaller in embedded devices vs modern server CPUs, so the results may be very misleading to real world applications for sqite.
Different instruction set. The release notification isn't very clear about what optimizations took place. It is quite possible that it will not be the same result on a different architecture.