Panther Lake vs. Ryzen AI Max Plus: Single-Core, Multi-Core, and iGPU Performance Comparison

Everything known about Intel’s 2026 Core Ultra Pensor Lake CPUs and their performance improvements.

Hardware by RereRara on Jan 01, 2026

Since no Panther Lake V-series chips have been leaked, there isn't really a follow-up to Lunar Lake. Intel has long made it clear that Lunar Lake was a one-off, with no plans for a follow-up generation.

Because of this, Lunar Lake's very energy-efficient design won't return in the same way. Intel is getting ready to announce its 2026 laptop CPU lineup at CES2026. This lineup will be officially called the Intel Core Ultra 300 series, but it is also known as Panther Lake.

Panther Lake, Ryzen AI Max Plus, Single-Core, Multi-Core, iGPU Performance Comparison, NoobFeed

At the same time, the overall laptop tech scene isn't very active. Besides possibly updating the RTX 5000 line, it's unlikely Nvidia will launch new mobile GPUs in 2026, since it's still focused on data centers and AI accelerators.

It's also not thought that AMD will give a full refresh of its mobile lineup. Because of this, Intel's next big reveals are definitely the most interesting thing to look out for at CES 2026.

Panther Lake as a Unified Successor Strategy

Panther Lake is Intel's Core Ultra series 3 of CPUs. It is intended to be a long-term, unified replacement for the Lunar Lake and Arrow Lake-U and Arrow Lake-H families. The goals are much better performance per watt, a much stronger Xe3 iGPU, and a much better NPU that is focused on AI tasks. Instead of just chasing basic CPU speed, Intel seems to be shifting power budgets toward graphics and AI performance.

Flagship Leak: Core Ultra X9 388H Performance

The Intel Core Ultra X9 388H, advertised as the top Panther Lake CPU, has the most detailed leak so far. In Geekbench 6, the single-core performance is said to be over 3000 points. The multi-core performance is about 17687 points in multi-core tasks, which makes it about 15% to 21% faster than the old Core Ultra 9 285H.

If these leaks are correct, the X9 388H goes even beyond the Ryzen AI Max Plus 395 in both single-core and multi-core speed. This is even though the X9 needs less power, with a 45W TDP compared to the Ryzen's 55W. That said, AMD still has a big lead in iGPU speed, even though CPUs look really good.

Mid-Range Power Shift: Ultra Core X7 358H

The Core Ultra X7 358H is another important leak. It's meant for the middle to high end of the Panther Lake stack. Its GPU speed is what stands out the most. At 65W, it scores about 6800 in 3DMark Time Spy, which is about 72% better than the Core Ultra 7 255H iGPU score.

In Cinebench R26, the CPU scores are about the same as, or slightly lower than, those of the current Core Ultra 7 255H. This supports the idea that Panther Lake focuses more on iGPU and AI improvements than on big CPU gains across every SKU.

Panther Lake, Ryzen AI Max Plus, Single-Core, Multi-Core, iGPU Performance Comparison, NoobFeed

Balanced Option: Core Ultra 7 366H

Even though the Core Ultra 7 366H doesn't have the X-series prefix, it still gets good gaming results. It scores about 26,000 on Geekbench Vulkan GPU compute, which is higher than the GTX 1050 Ti's score of 22,000. In the same test, that is about 26% higher than AMD's Radeon 840M. It isn't the best performer in the lineup, but it does have good overall capability for more balanced systems.

Entry-Level Considerations: Core Ultra 5 388H

The Core Ultra 5 388H, which was leaked, is the entry-level Panther Lake choice. The new Xe3-based B370 iGPU seems to work pretty well, though in some cases not quite as well as previous-generation flagship iGPUs, according to early reports. This means that not all Panther Lake iGPUs are the same, and some are clearly designed for use in systems that don't cost much, rather than for high-performance use.

Comparing Flagships Against AMD

Intel looks good in the top comparison between the Core Ultra X9 388H, the older Core Ultra 9 285H, and the Ryzen AI Max Plus 395. The X9 388H has better single-core performance and similar multi-core performance to AMD's 16-core Zen 5 design.

But the Ryzen AI Max Plus platform is not just about great CPU performance; it also features a powerful iGPU and a unified memory design. In that area, even with a lot of Xe3 help, Panther Lake still can't fully compete.

No HX Replacement and No Lunar Lake Follow-Up

Up to now, all Panther Lake leaks have focused on H-series chips. There is no leaked information about new CPUs for the HX series in the second-generation Core Ultra lineup. In other words, there is still no clear picture of what the next wave of high-TDP gaming laptops will look like.

In the same way, there is no direct Lunar Lake successor, which is confirmed by the lack of a Panther Lake V-series. Lunar Lake's very high-power economy came with some costs, such as not being able to have more than 32GB of on-package memory or more than 2 cores. This plan worked very well, but it limited users' ability to change things if they needed more memory.

Intel seems to hope that improving the Intel18A process will one day let it make CPUs as efficient as Lunar Lake chips while also supporting higher core counts and more adaptable memory choices.

Power Efficiency and Real-World Choices in 2026

If you're looking for the most power-efficient CPUs and the smallest computers, there isn't an Intel CPU that directly replaces Lunar Lake. The Qualcomm Snapdragon X Elite Surface Laptop 7 seems to be the best at conserving power and staying cool, based on our own experience. It operates cooler and faster in daily use, even compared to Lunar Lake systems, and remains consistently responsive whether the laptop is on battery or plugged in.

For development tasks, ARM systems become a lot more useful when you use cloud-based tools like remote computers and cloud dev boxes, especially with the fast Windows on ARM experience.

Panther Lake, Ryzen AI Max Plus, Single-Core, Multi-Core, iGPU Performance Comparison, NoobFeed

What This Means for Upgrades Going Into CES 2026

As we head into CES 2026, there are still no confirmed leaks suggesting that new HX-class CPUs will be available for high-end game laptops, and this remains an open question. At the same time, Intel seems to finally have a CPU that can really compete with AMD in raw CPU performance: the Core Ultra X9 388H.

Even though AMD still has the best iGPUs and unified memory, Intel's full Panther Lake lineup is a great, possibly game-changing upgrade for 2026 laptops, since AMD hasn't done a full update to its mobile lineup. NVIDIA's mobile GPU changes have been limited.

As CES2026 is just under a month away, more information should be coming soon. Until then, these leaks give you a good idea of where Intel's mobile CPUs are headed and help you decide whether to focus your next upgrade on ultra-thin efficiency or higher-performance mobile systems.

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