there is another thread here somewhere about the noises the nvme ssd produces. apparently some ssds produce hissing/"beeping" noises when the ssd is stressed which geekbench does as well. cinebench not so much. try something like blackmagic or aja system test lite (app store) to measure ssd speeds and see if you hear noises then. this way you can isolate the issues from each other: cinebench (cpu stress), blackmagic/aja (ssd) ... geekbench includes cpu, ssd, and ram benchmarks so it's hard to know what is going on other than receiving a score