Benchmarks for a Googlebook reference board codenamed "Google Fatcat," powered by Intel’s upcoming Panther Lake (Core Ultra Series 3) processors, have been spotted in multiple Geekbench listings.
The CPU identification data aligns perfectly with Panther Lake's CPUID, strongly suggesting these are legitimate tests conducted on physical Fatcat hardware. However, the benchmark data alone is not enough to confirm exactly which Core Ultra Series 3 model is inside.
Hardware in Testing Well Ahead of the Googlebook Announcement
The benchmark scores were uploaded between March 31 and April 10, 2026—roughly a month and a half prior to Google's official unveiling of the Googlebook platform.
The device name and model ID are both listed as "Google Fatcat," and the system is running Android 17. For context, "Fatcat" serves as the foundational design board for multiple upcoming Googlebook models, including the Lapis (ASUS), Ruby (Lenovo), and Moonstone (Acer).
CPU Data Matches Panther Lake Identifiers
The CPU identifier is listed as GenuineIntel Family 6 Model 204 Stepping 3, which precisely matches the CPUID (Family 6, Model 204) that Intel has allocated for its Core Ultra Series 3 (Panther Lake) architecture.
All 13 logged scores detail an 8-core configuration: one core clocked at 4.70GHz, three at 4.50GHz, and four at 3.40GHz. Performance metrics show single-core scores hovering around 2,400 and multi-core scores ranging from 9,300 to 9,800. The listings also reveal 12.0 MB of L3 cache and 15.17 GB of memory (indicative of a standard 16GB configuration).
Interestingly, while Geekbench identifies the CPU as an "Intel Core Ultra 5 335," Intel's official specifications cap that specific chip's maximum turbo frequency at 4.6GHz. The 4.70GHz peak recorded in these tests is actually closer to the Core Ultra 7 355 (which is officially rated for up to 4.7GHz). The reason for this discrepancy in the readout remains unclear at this time.
The Takeaway
While we cannot pinpoint the exact chip model just yet, these listings confirm that Panther Lake reference hardware was already up and running in the wild approximately a month and a half before the official Googlebook announcement.
Meanwhile, the HP Googlebook 14-inch—powered by Qualcomm’s Snapdragon X Elite—has similarly surfaced on Geekbench, as the device gears up for a fall 2026 release.
via HelenTech