The anticipation for Intel’s upcoming processors has intensified with the leak of multiple Panther Lake “Core Ultra Series 3” CPUs. These processors, which have surfaced in benchmark tests, promise exciting advancements in performance. As details emerge, enthusiasts and industry watchers are eager to learn more about what these new CPUs can deliver.
Examining the Leaked Intel Core Ultra Series 3 CPUs
Four Intel Panther Lake “Core Ultra Series 3” CPUs have been revealed through the PassMark benchmark suite, showcasing their capabilities. The lineup includes the Core Ultra 7 366H, Ultra X7 358H, Ultra 7 365, and Ultra 5 332, each with distinct specifications and performance attributes. The Core Ultra 7 366H offers 16 cores, 18 MB of L3 cache, and 12 MB of L2 cache. In contrast, the Core Ultra X7 358H has a similar core setup with a 4.8 GHz boost clock. Meanwhile, the Core Ultra 7 365 and Core Ultra 5 332 have 8 cores and 6 cores, respectively, with varying cache configurations.

When it comes to performance, the Core Ultra X7 366H is comparable to the Core Ultra 9 285H, despite the latter’s higher clock speed. The Core Ultra X7 358H, with its 4.8 GHz clock, outperforms the Core Ultra 7 255H, which has a slight clock speed advantage but fewer P-Cores. The Core Ultra 7 365, positioned as an 8-core competitor, surpasses both the Ryzen AI Z2 Extreme and the Ultra 5 226V, whereas the entry-level 6-core Core Ultra 5 332 lags behind its peers.
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Uncovering the Panther Lake Handheld Device
The first glimpse of a Panther Lake handheld device has also been leaked on Geekbench. This device, the OneXPlayer X1 i, is equipped with the Intel Core Ultra 5 338H CPU, featuring 12 cores and a clock speed of up to 4.6 GHz.

This handheld device can be compared to the OneXPlayer X1 Pro, which utilizes the Ryzen AI 9 HX 370. Although the AMD device shows a higher single-core score, the Panther Lake model excels in multi-core performance.
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It’s essential to remember that benchmark results may not represent the actual performance due to variations in clock speeds, power profiles, and other factors. Intel is gearing up to reveal its Core Ultra Series 3 “Panther Lake” processors at CES 2026, creating anticipation for an impressive CPU release.
Intel Panther Lake-H and U Lineup (Preliminary)
| CPU Model | P-Cores (Cougar Cove) | E-Cores (Darkmont) | LP-E Cores (Skymont) | CPU Clocks | Xe3 iGPU Cores | iGPU Clock | TDP |
|---|---|---|---|---|---|---|---|
| Core Ultra X9 388H | 4 | 8 | 4 | TBD | 12 | TBD | 45W |
| Core Ultra X7 368H | 4 | 8 | 4 | TBD | 12 | TBD | 45W |
| Core Ultra X7 366H | 4 | 8 | 4 | 2.0 / 4.8 GHz | 4 | TBD | 45W |
| Core Ultra X7 358H | 4 | 8 | 4 | 1.9 / 4.8 GHz | 12 | 2500 MHz | 45W |
| Core Ultra 5 338H | 4 | 4 | 4 | 1.9 / 4.7 GHz | 10 | TBD | 45W |
| Core Ultra 9 375H | 4 | 8 | 4 | TBD | 4 | TBD | 45W |
| Core Ultra 7 355H | 4 | 8 | 4 | TBD | 4 | TBD | 45W |
| Core Ultra 7 345H | 4 | 8 | 4 | TBD | 4 | TBD | 45W |
| Core Ultra 5 335H | 4 | 0 | 4 | 2.2 / 4.6 GHz | 4 | TBD | 45W |
| Core Ultra 5 325H | 4 | 4 | 4 | TBD | 4 | TBD | 45W |
| Core Ultra 7 360U | 4 | 0 | 4 | TBD | 4 | TBD | 15-28W |
| Core Ultra 5 350U | 4 | 0 | 4 | TBD | 4 | TBD | 15-28W |
| Core Ultra 5 340U | 4 | 0 | 4 | TBD | 4 | TBD | 15-28W |
| Core Ultra 3 320U | 2 | 0 | 4 | TBD | 4 | TBD | 15-28W |