Intel panther lake hits 5.1 ghz on x9—see which 16-core skus ship with 12 xe3 and which don’t

Panther Lake mobile SKUs: clocks, core configs, and power envelopes

Shared material lists Intel “Panther Lake” mobile processors with up to 16 CPU cores (4 Performance + 8 Efficient + 4 Low‑Power Efficient) and up to 12 Xe3 iGPU cores. The top entry — Core Ultra X9 388H — is indicated with a turbo of 5.1 GHz. H‑class parts are described with a default of 25 W and OEM‑set turbo power up to 65–80 W.

Reference post on X (source post). Related internal reads: AI agent computer‑use preview, infra outage roundup, mobile 4K editing, Android XR stack, Google Doodle game.

5.1 GHz

Max listed turbo (X9 388H)

Max CPU cores (4P+8E+4 LP‑E)

Max Xe3 GPU cores (B390)

25–80 W

TDP envelope (stock/turbo, OEM‑set)

Clock Range Overview

Dataset built from the attached SKU list below.

Architecture terms (quick read)

Performance cores listed as 4 on top H‑class dies.

Efficient cores listed as 8 on 4+8+4 entries.

Low‑power cluster listed as 4 on H‑class and as present across other layouts above.

Integrated graphics core counts indicated as up to 12 (B390) on select X‑class entries and 10 (B370) on certain Core Ultra 5 entries.

Event Map (reference only)

Pins mark generic tech hubs. Pan/zoom enabled.

Attached SKU list (leaked)

Models and max CPU turbo clocks, grouped by core layout:

4+8+4 Core Configuration

Core Ultra X9 388H – 5.1 GHz

Core Ultra 386H – 4.9 GHz

Core Ultra X7 368H – 5.0 GHz

Core Ultra 366H – 4.8 GHz

Core Ultra X7 358H – 4.8 GHz

Core Ultra 356H – 4.7 GHz

4+4+4 Core Configuration

Core Ultra X5 338H – 4.7 GHz

Core Ultra 336H – 4.6 GHz

4+0+4 Core Configuration

Core Ultra 365 – 4.8 GHz

Core Ultra 355 – 4.7 GHz

Core Ultra 335 – 4.6 GHz

Core Ultra 325 – 4.5 GHz

2+0+4 Core Configuration

Core Ultra 332 – 4.4 GHz

Core Ultra 322 – 4.4 GHz

Power notes: H‑class parts listed with default 25 W and OEM‑set turbo up to 65–80 W.

The section covered the listed clocks, core layouts, iGPU core counts, and power ranges from the shared material. Links were kept for reference and internal reading.