AMD Gainsborough Chip Fuels Steam Deck 2 Speculation

Valve has spent years saying it won’t build a Steam Deck 2 until AMD delivers a chip with a real generational leap in performance and efficiency. Now a freshly surfaced codename, the AMD Gainsborough chip, has handheld gaming fans wondering if that moment has finally arrived. The clues are intriguing, but anyone hoping for a Steam Deck 2 announcement tomorrow should temper expectations.

How the Gainsborough chip surfaced

The name showed up buried in AMD’s latest graphics drivers, spotted by leakers Moore’s Law Is Dead and IT Home. It fits a pattern AMD has used before: the original Steam Deck’s chip was called Aerith, and the Steam Deck OLED’s chip was Sephiroth, both named after characters from Final Fantasy VII. Gainsborough is Aerith’s surname, which is why people immediately connected it to a potential sequel.

Import and export records reviewed by IT Home show AMD has already been shipping test validation equipment tied to Gainsborough, meaning some customer is actively evaluating whether the chip fits their hardware. The chip also appears to be semi-custom, meaning it was designed for a specific client rather than sold broadly, which is exactly how AMD built the original Steam Deck silicon.

The size and power clues

Those same import records put the Gainsborough package at 25mm by 25mm. Separately, leaker Gotou_3rd claims AMD’s upcoming Ryzen Z3 and Z3 Extreme handheld chips will share that exact same footprint, and that the Z3 is targeting a 15-watt power envelope, matching what the Steam Deck and Steam Deck OLED already run at. On paper, that overlap in size and power budget is the strongest argument for a Gainsborough-to-Steam-Deck-2 connection.

Why skepticism is warranted

Several details complicate the tidy narrative. First, semi-custom chips don’t always end up in the product they were originally designed for. The original Steam Deck chip is rumored to have started life intended for a Magic Leap headset and was reportedly shopped to tablet makers, including a canceled Microsoft device, before Valve picked it up with portions of the silicon left unused.

Second, the Final Fantasy naming scheme belongs to AMD, not Valve. Valve’s own hardware designers have said they didn’t choose the Aerith or Sephiroth codenames themselves. That matters because when Microsoft and Asus used the Ryzen Z2 A chip for the base Xbox Ally, they were technically using an “Aerith Plus” chip, proving AMD’s codenames can land in devices that have nothing to do with Valve.

Third, 25mm by 25mm is actually larger than expected for a Steam Deck part. The original Aerith chip measured 19mm by 19mm before it was later shrunk into the Sephiroth revision used in the Steam Deck OLED. A bigger package could still make sense if Gainsborough shares cost efficiencies with the broader Ryzen Z3 lineup, but it runs against the trend of shrinking, not growing, chip size.

What this means for Steam Deck 2’s timeline

As recently as last month, Valve said it was still figuring out how and when to build a Steam Deck 2, well after it would have theoretically had early access to Gainsborough samples. That suggests Valve isn’t treating this chip as a guaranteed green light. Some of that caution may simply be Valve avoiding another situation like this year’s RAM-forced hardware delays, where it chose to slow down hardware plans rather than overpromise.

The bottom line

The AMD Gainsborough chip is a real and interesting data point, not confirmation of a Steam Deck 2. The size, power target, and semi-custom nature all line up with what a handheld gaming chip would need, but the same traits applied to the original Steam Deck’s chip before it bounced between several other devices first. Anyone tracking handheld gaming PCs should watch for further leaks tying Gainsborough specifically to Valve, rather than assuming a sequel is locked in.

Source: The Verge