Hot Chips 2026: Intel Xeon 7 'Diamond Rapids' comes with up to 256 P-cores, 1.28 GB of last-level cache — next-gen 18A-P CPU also brings AVX 10.2 and uses UCIe-S instead of EMIB
- ID
- 17440
- Status
- summarized
- Published
- 25 Aug 2026, 5:07 AM
- Fetched
- 25 Aug 2026, 8:19 AM
- Provider
- Tom's Hardware
- Category
- technology
- Original URL
- https://www.tomshardware.com/pc-components/cpus/intel-xeon-7-diamond-rapids-comes-with-up-to-256-p-cores-1-28-gb-of-last-level-cache-next-gen-18a-p-cpu-also-brings-avx-10-2-and-uses-ucie-s-instead-of-emib
- Source URL
- https://www.tomshardware.com/feeds/all
Summary
- Score
- 4.0
- Created
- 25 Aug 2026, 8:19 AM
- Tags
- Audience
- developersai_ml_learners
What happened
Intel announced Xeon 7 'Diamond Rapids' at Hot Chips 2026, scaling to 256 P-cores with 1.28 GB of last-level cache, built on the 18A-P process. The chip adds AVX 10.2 instruction support and switches from EMIB to UCIe-S for die-to-die interconnect.
Why it matters
If you run CPU-based inference or heavy multi-threaded workloads on cloud instances, the 1.28 GB LLC and AVX 10.2 support could meaningfully change per-core throughput for large-model inference and vectorized workloads once this ships. The UCIe-S shift signals Intel moving toward an open chiplet standard, which matters for anyone evaluating long-term infrastructure lock-in, but this is a pre-announcement with no pricing, availability date, or benchmarks.
Discussion angle
Will 1.28 GB of on-package cache actually move the needle for CPU-based LLM inference versus just renting GPU instances, or is this a niche play for specific memory-bound workloads?