The reason they&#x27;re dancing around the performance figures is because a) synthetic benchmarks like SPEC and CoreMark are of questionable value, and b) They don&#x27;t have chips in customers&#x27; hands quite yet, so they can&#x27;t be independently reproduced.<p>If you look at the current results for Rocket and BOOM, you&#x27;ll find that these microarchitectures seem competitive with Cortex A5&#x2F;A8 and Cortex A15 respectively at comparable frequencies.<p>In addition to this, they seem to have some significant amount of space savings on die. Power&#x2F;performance ratios already seem to be better (likely due in part to smaller die area).<p>On a power-performance front, a bigger OoO RISC-V could likely be competitive in peak performance to an intel, though you&#x27;d have to find a market for that. There has also been a lot of discussion about a real vector machine extension, and that would likely wipe the floor with x86&#x27;s packed SIMD if done right.