Is a New Steam Deck Coming? What That AMD Chip Rumor Means
A new AMD chip codenamed Gainsborough has turned up in AMD driver files as a custom design for one customer. Reporting published on October 1, 2026 links it to Valve's plans for a follow-up to the Steam Deck, its handheld gaming PC. The Verge
Valve has said it will wait for a large jump in speed and efficiency before building a Steam Deck 2. The Verge On October 1, 2026, PC Gamer reported that AMD's new Gainsborough APU, a single chip that handles computing and graphics together, is rumoured to power that successor. PC Gamer
What exists so far is only traces in software and shipping records. The name was found in AMD drivers. Import and export records show AMD has shipped test gear for the Gainsborough chip for validation, or early checks. The part is described as using TSMC's N3P process, a newer way of making chips. The Verge
Import records show the Gainsborough chip uses an FF6 package, the base the chip sits on, measuring 25mm by 25mm. The original Steam Deck Aerith chip reportedly measured 19mm by 19mm before the Sephiroth revision. The Verge
The name follows a pattern. The first Steam Deck chip was named Aerith after a Final Fantasy VII character, and Gainsborough is that character's last name. Valve designers told The Verge during a late-2023 headquarters visit that AMD chose the Final Fantasy codenames and Valve did not particularly want them. The Verge
That chip family is already used outside Valve hardware. The Ryzen Z2 A chip used in the $500 Xbox Ally is an Aerith Plus chip. The Verge For current Deck availability, Valve states that Steam Deck OLED may be intermittently out of stock in some regions due to memory and storage shortages. Steam
Gizmodo reported that Gainsborough is a new chip with all signs pointing to it being developed for Valve for a next-gen Steam Deck. Gizmodo A codename is not confirmation. A custom project for one customer does not by itself name that customer or guarantee a finished product.
The broader context here is what decides a handheld. The build method, the package size, and the testing stage shape battery life and heat. A shift to N3P would be a full step past the chips in current handhelds of this type. Size does not set speed, but it limits board layout, power supply, and cooling.
In my view, Valve's test is the right way to read this rumor. Like miles per gallon for a car, a handheld lives on work per watt with low fan noise and fair battery life, not top scores. Test gear points to early work on power, signals, and software. That work normally comes well before mass production.
Worth flagging is how much is still unknown. Core counts, graphics design, memory type and bus width, and target power and heat limits have not appeared in reports. Until they do, Gainsborough is best seen as a possible fit for what Valve described. If it passes Valve's efficiency test, it allows a successor that still runs existing games while handling more games on the go.
