you're comparing apples to oranges.

technically speaking, CPU and GPU are not directly comparable, as you always need a CPU just to be able to run your PC, while GPU can theoretically make some things faster but you don’t need it to make the PC work.
consider the CPU as 5 math professors, the GPU as 100 math students. 5 math professors can do a lot of complex calculations fast, while 100 math students can do a more calculations, but not as complex as the ones the professor can do.
and oh, fyi, 3DMark is generally for benchmarking the GPU's power. so obviously, a better GPU would give you a better score than a better CPU.
cheers