Core Ultra X 3X8H, 3X5H, and 3X0U: A Power Trio Raising the Bar

CPUID’s latest HWMonitor update has quietly confirmed Intel’s Panther Lake naming scheme ahead of launch, listing a dozen laptop SKUs across three Core Ultra families. That’s a strong signal that Intel’s next-gen mobile processors are firming up for their planned debut at CES 2026.

What HWMonitor 1.60 adds
– Official recognition for these naming patterns: Core Ultra X 3X8H, Core Ultra 3X5H, and Core Ultra 3X0U
– Full SKU lists for the high-performance H chips and the ultra-efficient U lineup

Three Panther Lake families at a glance
– Core Ultra X H: performance-first chips with the fastest integrated graphics
– Core Ultra H: mainstream performance with trimmed-down iGPU
– Core Ultra U: ultra-efficient designs built for thin-and-light systems

Core Ultra X H series (fastest integrated graphics)
– Core Ultra 9 X388H: 4 P-cores, 8 E-cores, 4 LP-E cores, 12 Xe3 GPU cores
– Core Ultra 7 X368H: 4 P-cores, 8 E-cores, 4 LP-E cores, 12 Xe3 GPU cores
– Core Ultra 7 X358H: 4 P-cores, 8 E-cores, 4 LP-E cores, 12 Xe3 GPU cores
– Core Ultra 5 X338H: 4 P-cores, 4 E-cores, 4 LP-E cores, 10 Xe3 GPU cores

Core Ultra H series (non-X variants)
– Core Ultra 9 375H: 4 P-cores, 8 E-cores, 4 LP-E cores, 4 Xe3 GPU cores
– Core Ultra 7 355H: 4 P-cores, 8 E-cores, 4 LP-E cores, 4 Xe3 GPU cores
– Core Ultra 7 345H: 4 P-cores, 8 E-cores, 4 LP-E cores, 4 Xe3 GPU cores
– Core Ultra 5 325H: 4 P-cores, 4 E-cores, 4 LP-E cores, 4 Xe3 GPU cores

Core Ultra U series (ultra-efficient)
– Core Ultra 7 360U: 4 P-cores, 0 E-cores, 4 LP-E cores, 4 Xe3 GPU cores
– Core Ultra 5 350U: 4 P-cores, 0 E-cores, 4 LP-E cores, 4 Xe3 GPU cores
– Core Ultra 5 340U: 4 P-cores, 0 E-cores, 4 LP-E cores, 4 Xe3 GPU cores
– Core Ultra 3 320U: 2 P-cores, 0 E-cores, 4 LP-E cores, 4 Xe3 GPU cores

What stands out
– X-branded H chips target the highest iGPU performance, with three models carrying 12 Xe3 graphics cores. The X5 338H steps down slightly to 10 Xe3 cores.
– Non-X H chips mirror the CPU core layouts of their X counterparts but drop to 4 Xe3 GPU cores, signaling a focus on CPU throughput and power balance.
– U-series chips skip the standard E-cores entirely and pair Performance cores with LP-E efficiency cores. That design should translate into excellent battery life and always-on responsiveness in ultraportables.

Architectural and process notes
– Panther Lake is slated to be the first Intel CPU family produced on the in-house Intel 18A process, a major node leap aimed at power and performance gains.
– The integrated graphics move to Xe3, which Intel claims is over 50% faster than Xe2. Expect these iGPUs to also inform the next-gen Arc B-series discrete graphics.
– While CPUs shift to 18A, the iGPU tile is expected to be built on either TSMC N3E or Intel 3, depending on configuration.

Why it matters
– The naming confirmation in HWMonitor 1.60 suggests the mobile stack is locked in early, paving the way for OEM designs to ramp throughout 2025.
– With Xe3 graphics and a refined mix of P, E, and LP-E cores, Panther Lake looks positioned to lift gaming-on-iGPU, creator performance, and battery efficiency across different laptop classes.

Bottom line
If you’re tracking next-gen laptops, this HWMonitor update is an important breadcrumb. It not only verifies Intel’s Panther Lake model names across X H, H, and U families but also outlines where each SKU should land on performance, graphics capability, and efficiency when the lineup arrives at CES 2026.