Macworld Following the appearance of Geekbench 6 speed tests for the M2 Ultra Mac Studio on June 9, MacRumors has spotted the first benchmarks for the similar equipped Mac Pro. And as expected, it’s seriously quick. The “Mac14,8” (with the M2 Ultra processor and 64GB of RAM, a standard Mac Pro configuration that starts at $6,999) appeared in Geekbench’s database on June 13. It scored 2,794 in the single-core test, and a phenomenal 21,453 in multi-core. For comparison, the Mac Studio with the lower-spec M2 Max, which we just reviewed, scored 15,081 in multi-core, itself a blockbuster performance. The brand-new M2 MacBook Air, meanwhile, scored 10,030. The M2 Ultra always comes with 24 CPU cores. We can’t tell from the…