News Core Ultra K prototype appears on CPU-Z, uses Intel 4 process node and hits 5 GHz, lacks AVX-512 support

[Admin]

Intel's next-generation Arrow Lake-S CPUs appear to be coming without AVX-512, marking another generation where Intel disables AVX-512 due to compatibility issues with its E-cores.

Core Ultra K prototype appears on CPU-Z, uses Intel 4 process node and hits 5 GHz, lacks AVX-512 support : Read more

 

[bit_user]

This little detail suggests that Intel is once again derailing AVX-512 for another generation, leaving AMD's competing Ryzen 9000 series processors as the sole models to support the full-fat AVX-512 acceleration units.

Intel killed AVX-512. In client CPUs, it's dead and not coming back. Server CPUs will continue to support it, as a matter of backwards compatibility, but Intel considers it a legacy feature.

AVX10 is meant to replace it. Client CPUs will implement AVX10/256, which inherits AVX-512 functionality, but only supports 128-bit and 256-bit vector widths (AVX-512 supported these operand sizes, also). Server CPUs will implement AVX10 at 512-bit width (again, also supporting 128-bit and 256-bit operands), but this is referred to somewhat pejoratively, in Intel's AVX10 literature as a legacy thing.

... Intel's chips, which have had to reduce clock speeds when running AVX-512 instructions to prevent the CPUs from overheating.

Golden Cove and its Intel 7 process node largely solved that. Sapphire Rapids can run AVX-512 workloads with minimal clockspeed penalties and while staying inside their specified power envelop (which only allows up to 25% excursions above TDP and I assume only within the time window defined by the Tau parameter).