Monday, October 19th 2026

Rumored Steam Deck 2 APU Appears in Leaked Benchmarks with 50% More CPU Cores

A new AMD Gainsborough APU, which has been identified as a potential candidate for the Valve Steam Deck 2, has apparently been leaked onOpenBenchmarking. The new engineering sample shows a total of six cores and twelve threads on the CPU, an increase of 50% over the current Steam Deck APU, and a base clock of 2.4 GHz.

Another notable change from the original Steam Deck is that the Gainsborough APU in question has 24 GB of LPDDR5 RAM, instead of 16. That memory was also running at a whopping 9600 MT/s, as opposed to the Steam Deck's 6400 MT/s. This isn't necessarily to say that the Steam Deck 2 will have 24 GB of memory, but it's an indication that AMD, Valve, or some other OEM is testing that configuration. In the benchmark results, the APU reaches 3,508 points in Furmark. While it's not directly comparable, since the Gainsburough APU was running at 1024 × 768 the Valve Steam Deck achieved 3,323 in Furmark at 1280 × 800. Those two results are close, especially given the higher resolution in the Steam Deck testing, but if this is on early drivers, it's a good sign for GPU performance on the Steam Deck 2.
It seems as though AMD will be using Zen 6 or Zen 6c in the Gainsburough APU, although it's unclear what the mix of Zen 6 and 6c cores will be. There is even a possibility that AMD will use the Zen 6 LP cores recently detailed in relation to the PlayStation 6 handheld. It was previously also reported that the Steam Deck would be ditching the custom AMD silicon for a semi-custom part or an off-the-shelf component, which means the Gainsborough APU may eventually make its way to systems other than the Steam Deck 2.
Source: OpenBenchmarking
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5 Comments on Rumored Steam Deck 2 APU Appears in Leaked Benchmarks with 50% More CPU Cores

#1
Cheeseball
Not a Potato
The two big questions are:

What CPU architecture does it use?
What GPU architecture does it use?
Posted on Reply
#2
user556
There's no way going from 3323 to 3508 would be classed as the substantial improvement that Valve is waiting for. The only way that could be taken seriously as Steam Deck 2 APU is if the power needs, for the whole handheld, also dropped by half at the same time.
Posted on Reply
#3
phints
It's one thing to test out some newer AMD SoCs but if I were Valve I'd avoid this until TSMC 2N is freed up in 1-2 years. Yes this is an expensive node but there needs to be a big perf/watt increase to make it feel like a new gen and I don't think we are quite there yet with architectural improvements if they just go from 6N to 3N.
Posted on Reply
#4
Mack4285
24 GB of RAM? Is it even affordable in the coming decade? They should be testing with 2 GB of RAM for a more realistic scenario.
Posted on Reply
#5
Testsubject01
❌ Doubt

RAM and NAND are far too expansive to justify a new Steam Deck currently or the foreseeable future. Further the supposed performance gains in the source do not really warrant a significant performance gain as Valve stated over and over.
With stuff being pushed back so far, they might have also added “more battery capacity” to the list and wait how solid-state batteries turn out in the coming years.
Posted on Reply
Nov 12th, 2026 04:40 CST change timezone

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