Really?! Did you read the announcement? C1 ultra cores are designed by ARM.

>The biggest cores on the the Xring O3 are the C1-Ultra. C1-Ultra really powerful cores. They support SME2 (Scalable Matrix Extension 2) for matrix/AI acceleration, SVE2 for data parallelism (SIMD).

>https://www.arm.com/products/silicon-ip-cpu/c1-ultra