(Image credit: Intel) At last the mystery is over. Just how good is Intel's Big Battlemage GPU at gaming? According to the first round of comprehensive benchmarks , we're talking RTX 5060 Ti performance. Yep, the Intel Arc Pro B70 has been benched and the results are pretty much as expected, disappointing and instructive, all at the same time. It's the larger sibling to the G21 GPU as seen in the Intel Arc B580 , Intel's second generation of graphics architecture, itself known variously as Battlemage or Xe2. And to the best of our knowledge, it was designed for gaming. But it won't ever be sold for that task. Instead, Intel loaded B31 up with 32 GB of VRAM and is serving it up as a relatively low cost card for running local AI models, where "low cost" in this context means about $1,000 bucks. In most games, the B70 is about bang-on RTX 5060 Ti 16 GB performance according to PCGamesHardware's numbers.…