Demo: Enhancing the SiFive Performance Portfolio
summary
SiFive demos four new application cores: P670/P650 (four-wide OoO) and P470/P450 (three-/four-wide OoO), with the P670 rated >12 SPEC2K6/GHz and the P470 ~8.2 SPEC2K6/GHz (P550 ~8.7). Claims include 2.75x peak single‑thread vs Cortex‑A55 and ~30% smaller area yielding 4x compute density over A55; P670 matches Cortex‑A78 perf at ~half the area (~2x density). Built features: RV A22 profile, vector and vector‑crypto, IOMMU, hypervisor, WorldGuard security, optional private L2, multi‑cluster up to 16 cores; chips are shipping to lead customers.
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chapters (9)
- 0:00Introduction to SiFive performance
- 1:24SiFive performance portfolio overview
- 3:12New product lineup announcement
- 4:36P470 features and benefits
- 8:07P470 pipeline and performance
- 10:12Real-world performance gains
- 12:00P670 architecture details
- 13:25Market opportunities and features
- 14:49Portfolio expansion and conclusion