Gaming handhelds with Panther Lake confirmed
Onexplayer confirms to be working on such a device through a pre-release leak.
A new leak points to a new ONEXPLAYER X1 variant built around Intel’s Core Ultra 5 338H , bringing the Panther Lake platform to a handheld for the first time. The CPU information comes from a test device that reports a 12-core chip inside an X1 system, branded as Core Ultra 5 338H. The listing shows a base clock of 1.90 GHz and a current maximum frequency of around 3.68 GHz for this sample. If accurate, this configuration would make the X1 the first gaming handheld seen with a Panther Lake processor.
The CPU report lists two core clusters, one with four cores and a second with eight cores. Separate leaks describe the 338H as a 4P+4E+4 low-power design, still adding up to 12 cores, with boost clocks that can scale to around 4.7 GHz in laptop form.
The handheld entry also shows 64 KB of L1 instruction cache and 32 KB of L1 data cache per core, a 4 MB L2 slice, and 18 MB of shared L3 cache. The CPU supports modern instruction sets including AVX2, AVX-VNNI, VAES and SHA, which helps with AI, emulation and media workloads on a compact device.
Source: GeekbenchCAPTION_END]
While the CPU block is new, the integrated graphics may be just as important for this X1 refresh. Core Ultra 5 338H is tied to an Arc B370 iGPU that uses Intel’s Xe3 architecture with 10 Xe cores and reported boost clocks up to about 2.4 GHz.
Early benchmark leaks put Arc B370 close to AMD’s Radeon 880M in Vulkan tests and well ahead of previous Xe2-based integrated graphics from Lunar Lake.
| ONEXPLAYER X1 Series | ||||
|---|---|---|---|---|
| VideoCardz.com | CPU | iGPU | Memory (up to) | Display |
| ONEXPLAYER X1 | Intel Core Ultra 5 125H Intel Core Ultra 7 155H | Intel Arc iGPU | 64 GB LPDDR5X-7467 | 10.95″ LTPS, 2560 × 1600, 120 Hz, 16:10 touch |
| ONEXPLAYER X1 AMD | AMD Ryzen 7 8840U | AMD Radeon 780M | 64 GB LPDDR5X-7500 | 10.95″ LTPS, 2560 × 1600, 120 Hz, 16:10 touch |
| ONEXPLAYER X1 Pro | AMD Ryzen AI 9 HX 370 | AMD Radeon 890M | 64 GB LPDDR5X-7500 | 10.95″ LTPS touchscreen, 2560 × 1600, 120 Hz, 16:10 |
| AMD Ryzen 7 8840U | AMD Radeon 780M | |||
| ONEXPLAYER X1 Pro EVA | Intel Core Ultra 7 255 | Intel Arc 140T iGPU | ||
| ONEXPLAYER X1 Mini | AMD Ryzen 7 8840U | AMD Radeon 780M | 64 GB LPDDR5X-7500 | 8.8″ LTPS, 2560 × 1600, 144 Hz, 16:10 touch |
| ONEXPLAYER X1 Mini | AMD Ryzen AI 9 HX 370 | AMD Radeon 890M | ||
| ONEXPLAYER X1 Air | Intel Core Ultra 5 228V Intel Core Ultra 7 258V | Intel Arc 140V iGPU | 32 GB LPDDR5X-8533 | 10.95″ LTPS, 2560 × 1600, 120 Hz, 540 nits, 16:10 touch |
| ONEXPLAYER X1 🆕 | Intel Core Ultra 5 338H | Arc B370 | 32 GB LPDDR5X | TBC |
This Panther Lake X1 handheld would join a family that already covers most current mobile CPU lines from AMD and Intel. The original X1 shipped with AMD Ryzen 7 8840U and Radeon 780M.
X1 Pro models added options for Ryzen AI 9 HX 370 with Radeon 890M and Intel Core Ultra H chips, while the recent X1 Air moved to Core Ultra V series. All share a 10.95 inch 2560×1600 LTPS 120 Hz touchscreen and detachable controllers that let the system act as a tablet or small laptop as well as a handheld.
This leak suggests that the same 3-in-1 chassis is now being used to test Panther Lake with Arc B370, setting up the X1 as one of the first gaming devices built around Intel’s next mobile platform.
| Intel Core Ultra 300 (RUMORED) | ||||
|---|---|---|---|---|
| VideoCardz | Cores⤵️ | Max Boost | GPU Cores | Default TDP / Max TDP |
| Core Ultra X9 388H | 16C (4P+8E+4LP) | 5.1 GHz | Arc B390 12 Xe3 | 25W/65-80W |
| Core Ultra 9 386H | 16C (4P+8E+4LP) | 4.9 GHz | 4 Xe3 | 25W/65-80W |
| Core Ultra X7 368H | 16C (4P+8E+4LP) | 5.0 GHz | Arc B390 12 Xe3 | 25W/65-80W |
| Core Ultra 7 366H | 16C (4P+8E+4LP) | 4.8 GHz | 4 Xe3 | 25W/65-80W |
| Core Ultra X7 358H | 16C (4P+8E+4LP) | 4.8 GHz | Arc B390 12 Xe3 | 25W/65-80W |
| Core Ultra 7 356H | 16C (4P+8E+4LP) | 4.7 GHz | 4 Xe3 | 25W/65-80W |
| Core Ultra 5 338H | 12C (4P+4E+4LP) | 4.7 GHz | Arc B370 10 Xe3 | 25W/65-80W |
| Core Ultra 5 336H | 12C (4P+4E+4LP) | 4.6 GHz | 4 Xe3 | 25W/65-80W |
| Core Ultra 7 365 | 8C (4P+0E+4LP) | 4.8 GHz | 4 Xe3 | 25W/55W |
| Core Ultra 7 355 | 8C (4P+0E+4LP) | 4.7 GHz | 4 Xe3 | 25W/55W |
| Core Ultra 5 335 | 8C (4P+0E+4LP) | 4.6 GHz | 4 Xe3 | 25W/55W |
| Core Ultra 5 325 | 8C (4P+0E+4LP) | 4.5 GHz | 4 Xe3 | 25W/55W |
| Core Ultra 5 332 | 6C (2P+0E+4LP) | 4.4 GHz | 2 Xe3 | 25W/55W |
| Core Ultra 5 322 | 6C (2P+0E+4LP) | 4.4 GHz | 2 Xe3 | 25W/55W |
