Intel's Serpent Lake: The Leaked 2028 APU That Packs an Nvidia RTX GPU

A Titan Lake Spin-Off with an Nvidia Heart

Serpent Lake is not a standalone generation but is described as a special spin-off branch of Intel's future Titan Lake CPU family . The chip's design will adopt a chiplet or SoC architecture similar to AMD's "Halo" series (like the upcoming Strix Halo), meaning it will combine multiple silicon tiles in a single package .

The headline feature is the dedicated Nvidia RTX GPU tile. This is not a simple licensing deal; it's the integration of physical Nvidia GPU chiplets directly into an Intel processor package for the first time . Given the 2028 target, reports consistently suggest this tile will be based on Nvidia's next-generation Rubin GPU architecture, or a potential successor like Rubin-Next . One report mentions the Rubin architecture's third-generation Transformer Engine, suggesting significant AI performance improvements of up to 50% over its predecessor .

Next-Gen CPU Cores: Copper Shark and Golden Eagle

The leak has also pulled back the curtain on Intel's next-generation CPU core architectures for both performance and efficiency:

• P-Core (Performance Core): Codenamed "Copper Shark", this is reportedly the new microarchitecture that will power the high-performance cores in Serpent Lake .
• E-Core (Efficiency Core): The efficiency cores are expected to use the "Golden Eagle" architecture .

These codenames suggest that despite some past rumors, Intel will continue with a hybrid architecture of separate performance and efficiency cores for this chip family .

Manufacturing and Memory: A Cutting-Edge Package

To deliver on the promise of high-end gaming and content creation, the Serpent Lake package will likely rely on advanced manufacturing and memory technologies.

• GPU Tile Fabrication: The Nvidia RTX GPU tile is widely reported to be manufactured on TSMC's N3P process node, a cutting-edge 3nm-class technology, or a future successor node . The manufacturing process for Intel's own CPU tile has not been mentioned in leaks.
• Memory Subsystem: Feeding a powerful integrated GPU requires enormous memory bandwidth. A detailed analysis suggests Serpent Lake will support a massive 16-channel LPDDR6 memory subsystem to meet this demand, which would be a significant upgrade to allow the integrated GPU to perform like a discrete graphics card .

A Direct Shot at AMD's Halo Series

The competitive intent behind Serpent Lake is clear. Multiple sources state the chip is being designed to compete directly with AMD's high-end "Halo" series APUs, which offer powerful integrated graphics in a compact form factor for premium laptops and mini-PCs . By combining Intel's CPU expertise with Nvidia's market-leading GPU technology, the partnership creates a product that could redefine the expectations for integrated graphics performance. The rumored $5 billion strategic investment in Intel by Nvidia, reportedly sealed by former Intel CEO Pat Gelsinger and Nvidia CEO Jensen Huang in 2025, underscores the high stakes of this collaboration .

Important caveat: Every specification, codename, and timeline mentioned here is based on leaks and unverified reports. Intel and Nvidia have not officially announced a product called "Serpent Lake," nor have they confirmed any of its technical details. As with all early hardware leaks, plans and specifications can change before a product reaches the market.