Intel Panther Lake laptop CPU review: the 18A-based Core Ultra X9 388H outperforms Apple's M5 and AMD's top-tier Strix Halo in some tests like 4K video exports
Intel's been talking the talk for months about its new generation of laptop chips, the first made on its long-anticipated 18A process.
The VergeAntonio G. Di Benedetto
Context & Ripple Effects
Panther Lake is Intel’s first laptop-chip generation built on 18A, following the company’s earlier positioning of the platform for laptops and handhelds. This review supplies an early product-level test of those manufacturing and architecture claims, after Intel detailed Panther Lake’s expected performance gains.
It also extends Intel’s recent laptop-chip progression from Lunar Lake’s redesigned SoC and stronger integrated graphics to a flagship part that can lead Apple and AMD in a defined creator workload. The result matters because it ties 18A’s promise to observed laptop performance rather than launch-stage projections.
First-order effects
Intel gains a concrete benchmark win for the Core Ultra X9 388H in 4K video exports against Apple’s M5 and AMD’s top-tier Strix Halo, while the comparison remains workload-specific rather than a blanket performance verdict.
Laptop buyers and OEMs evaluating premium creator systems have a new data point favoring Panther Lake where video-export speed is a priority.
Second-order effects
Apple and AMD face added pressure to emphasize the workloads, efficiency metrics, graphics performance, and software environments where their laptop platforms differentiate, rather than treating a single headline benchmark as dispositive.
Intel’s OEM partners can use Panther Lake’s 18A-based performance results to position premium Windows laptops more directly against Apple silicon and high-end AMD designs.
Third-order effects
If independent testing continues to validate Panther Lake across workloads, 18A could become a more meaningful competitive lever for Intel’s client roadmap, linking process execution directly to laptop-platform differentiation.
The comparison underscores a durable shift toward workload-specific laptop purchasing: CPU, integrated graphics, AI capability, power use, and media engines increasingly matter as a combined system rather than as a single benchmark score.
The trend: Laptop silicon competition is increasingly being decided by integrated, workload-specific performance claims as vendors pair new process nodes with broader system-on-chip designs.
Intel Core Ultra X9 388H C2C Latency You can easily distinguish between the P, E and LPE core clusters - although the LPE cores are now on the same compute tile. https://www.hardwareluxx.de/ ... [image]
Intel just put AMD on Notice. Panther Lake is AMAZING, except... There's some SERIOUS questions about actual battery life. Our full review: https://www.youtube.com/... [image]
Review drop: @intel Core Ultra Series 3 🐆 Welcome back, Intel. With an incredible new iGPU and outstanding power efficiency, Panther Lake rewrites the thin-and-light laptop rules. ✍️ 💻 Read the full review 👇 https://www.club386.com/... #intel #pantherlake [image]
I've tested two laptops powered by Panther Lake—pitting them head-to-head against laptops with Apple Silicon—and Intel has finally scored a much-needed win with the Core Ultra Series 3. https://www.wired.com/...
our Intel Panther Lake laptop CPU review is live. The first chip of Intel's 18A process is speedy, even on battery power, and a solid option for 1080p gaming https://www.theverge.com/...
Intel Panther Lake has *Terrific* IPC!!! > Cougar Cove P core has higher IPC than Zen 5. > Even Darkmont E core kicks Zen 5's a$$. 😂 > PTL Xe3 iGPU has higher performance compared to competition. > Amazing efficiency compared to competition. > Terrific MT compared to 285H. > [ima…
The question is how much of this can be attributed to Intel 18A, or whether a good SOC design and the ability to combine external and internal chip designs also play a significant role here.
NEW VIDEO INTEL IS BACK BABY! X9 388H Pantherlake is a genuine BEAST It's clear why Intel kept talking handhelds, it's 10-25watt Perf clears Strix Halo most of the time Here is my 1-hour deep dive video on the NEW Asus Zenbook Duo w/ Intel Pantherlake: https://www.youtube.com/...…
Panther Lake is roaring. The Verge: “Welcome back to the show, Intel.” “I've been testing the flagship Intel Core Ultra X9 388H Panther Lake chip in the 2026 Asus Zenbook Duo dual-screen laptop, and it's been a treat. It's fast enough for intensive work and multitasking,