The leaked Nintendo Switch 2 motherboard pointed to 12GB of system memory and an Nvidia processor later identified as the custom Tegra T239. Those parts of the story have since gained support from teardown reporting and component documentation. The claim that the chip uses Samsung’s 8nm manufacturing process is less settled, however, and should not be treated as an official specification—or as proof that Switch 2 is unreliable or underpowered.
What the original motherboard leak showed
The story began with a motherboard photograph published on January 1, 2025. The Reddit-sourced image appeared to show a large Nvidia system-on-chip alongside two soldered SK Hynix memory packages. Each package was interpreted as holding 6GB, producing an apparent total of 12GB of system RAM.
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The board also showed familiar console hardware, including USB-C ports and the game-card slot. But a photograph alone cannot establish every specification, and it was not immediately clear whether the board represented a finished retail unit, a development board, a prototype or another pre-production revision. Component suppliers, chip revisions, power circuitry and unpopulated debug features can change before mass production.
The original reporting also associated the visible Nvidia chip with the company’s custom T239 platform and suggested that its marking was consistent with Samsung’s 8nm process. That interpretation was plausible, but the process-node claim was never an official Nintendo disclosure.
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Read the original motherboard-leak report.
Is Switch 2 really using 12GB of RAM?
Yes, the 12GB figure is now strongly supported, although it describes installed physical memory rather than the amount available to games.
The initial leak identified two 6GB memory packages. Later teardown reporting and component-level hardware documentation describe Switch 2 as using two 6GB LPDDR5X packages, with possible parts from SK Hynix, Samsung or Micron depending on the hardware variant. Together, those packages total 12GB.
That is three times the original Nintendo Switch’s 4GB of system memory. The original Switch’s memory configuration is documented in an iFixit teardown guide, while Switch 2’s component information is tracked by SwitchBrew.
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12GB installed does not mean 12GB for games
Some of the memory is reserved for the operating system, background services, graphics functions, decompression and other system tasks. The amount available to a particular game can vary with firmware, software requirements and operating mode.
For that reason, it is misleading to repeat a fixed “game-available” number without a reliable measurement for the relevant firmware version. The headline figure is best understood as the console’s total physical memory capacity.
Why the extra memory matters
More RAM does not make Switch 2 three times as fast, but it gives developers substantially more room than the original Switch.
- Larger assets: Games can keep more detailed textures, geometry and animation data in memory.
- More complex worlds: Larger environments and denser scenes can be streamed with less memory pressure.
- Better ports: Games designed around newer consoles and PCs have a better chance of fitting without aggressive reductions to texture quality or world detail.
- System features: The operating system and background functions can coexist with games more comfortably.
- Longer useful life: Capacity can reduce one important barrier when developers target larger engines and asset budgets.
Actual performance still depends on the CPU, GPU, memory bandwidth, clock speeds, storage, cooling, firmware and the quality of each game’s optimization. A game can have access to more memory and still be limited by rendering throughput or processor performance.
What is Nvidia’s T239?
Later teardown reporting identified the Switch 2 processor as Nvidia’s Tegra T239, associated with the board marking NVIDIA GMLX30-A1. This is a custom console SoC, not simply an off-the-shelf desktop Nvidia GPU or a renamed original Switch processor.
According to teardown reporting, the chip contains:
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- One Arm Cortex-X1 high-performance CPU core;
- Three Arm Cortex-A78 performance cores;
- Four Cortex-A55 efficiency cores;
- A custom Ampere-derived GPU;
- 12 streaming multiprocessors;
- 1,536 CUDA cores.
These architectural details come from teardown analysis and hardware documentation, not from Nintendo’s launch specification. Nintendo officially describes Switch 2 only as using a custom Nvidia processor.
TechSpot’s teardown coverage explains the T239 identification and reported CPU/GPU configuration, while SwitchBrew’s hardware reference lists the associated chip marking and component information.
LPDDR5 or LPDDR5X?
The difference reflects the reporting timeline rather than a simple contradiction.
The early motherboard report described the memory as LPDDR5. Later component identification and hardware documentation describe two 6GB LPDDR5X packages. The most accurate summary is therefore: the initial leak called it LPDDR5, while later documentation identifies the system memory as LPDDR5X, with exact package variants potentially differing between production units.
Technical reporting has also associated the system with a 128-bit memory interface and high LPDDR5X transfer rates. Those figures should be attributed to teardown analysis rather than presented as Nintendo-published launch specifications. Theoretical bandwidth alone does not predict performance across games.
What does “ageing Nvidia SoC” mean?
“Ageing” is editorial shorthand, not a diagnosis. It can refer to several different things:
- Manufacturing process: The original leak interpreted the chip marking as consistent with Samsung’s 8nm process.
- Architecture: Nvidia’s Ampere architecture appeared in other products before Switch 2 launched, although T239 is a custom console implementation.
- Development timeline: T239-related engineering references and leaks circulated for years before the retail system appeared.
Notebookcheck treated the 8nm interpretation as highly likely from the visible marking. Later coverage continued to discuss an 8nm-versus-5nm dispute, meaning the attribution remains a reported interpretation rather than a settled Nintendo specification. Notebookcheck’s original analysis and TechSpot’s later reporting present the relevant evidence and uncertainty.
Does an older process mean poor performance or short lifespan?
Not by itself. A newer manufacturing node can improve efficiency at comparable performance, but a console’s real-world power use depends on clock speeds, voltage, cooling, memory, firmware and Nintendo’s power targets. A custom SoC can also be designed around a specific thermal and battery envelope.
The leak does not prove excessive heat, poor battery life, manufacturing problems or premature failure. Process-node identification cannot substitute for measurements of sustained clocks, power draw, temperatures, battery endurance or long-term reliability.
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What Nintendo officially confirms
Nintendo’s published launch materials confirm a custom Nvidia processor but do not name T239, specify 12GB of RAM, identify the memory type or state a manufacturing node.
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The official specifications do confirm:
- A June 5, 2025 launch date;
- 256GB of UFS internal storage;
- A 7.9-inch LCD display;
- 1920×1080 resolution;
- HDR10 support;
- Variable refresh rate of up to 120Hz;
- 4K output capability in supported configurations;
- Compatibility with compatible physical and digital Nintendo Switch games.
Nintendo’s official announcement and specifications are the authority for those confirmed features. Nintendo’s technical-specification support page does not expose the full leaked component detail in its accessible text.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the hardware implies for games
The combination of 12GB of memory, a custom Ampere-derived GPU and Nvidia reconstruction technology gives developers more flexibility than the original Switch. It can help with higher-resolution textures, larger environments and ports that would otherwise require substantial compromises.
It does not mean that every game will render at native 4K. Nintendo’s 4K output capability refers to the signal the system can produce; a game may render internally at a lower resolution and use reconstruction such as DLSS before outputting a 4K signal. Docked and handheld modes can also use different clocks, power limits and resolution targets.
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What the motherboard leak cannot prove
- Exact CPU and GPU clock speeds;
- Sustained performance under long workloads;
- Real-world memory bandwidth in every operating mode;
- The exact amount of RAM available to a particular game;
- Universal native 4K rendering;
- Battery life or thermal performance;
- Whether every retail unit uses the same memory vendor or package revision;
- Manufacturing yield or long-term reliability;
- That an alleged 8nm process makes the system obsolete or defective.
Practical implications for Switch 2 owners and buyers
For prospective buyers, the most meaningful conclusion is not that Switch 2 has an “old” chip. It is that the system has a much larger memory pool and a custom Nvidia platform designed to support a more demanding generation of games.
That should improve the ceiling for ports and first-party software, but storage planning still matters. The system includes 256GB of UFS storage, and Nintendo says Switch 2 uses microSD Express cards rather than ordinary microSD cards for expansion. Compatibility with older Switch docks and accessories is also limited, so existing hardware should be checked against Nintendo’s compatibility guidance before assuming it will work unchanged.
Nintendo’s compatibility guidance covers supported Switch games, accessories and related exceptions.
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Final verdict
The January 2025 motherboard leak was substantially informative, but its claims have different confidence levels. Two 6GB memory packages and a 12GB total are strongly supported by later hardware documentation. The Nvidia T239 identification is also supported by teardown reporting and the GMLX30-A1 board marking. The 8nm attribution remains a qualified, disputed interpretation rather than an official fact.
So the accurate reading is: Switch 2 has a significantly larger memory pool and a custom Nvidia processor associated with T239. The leak helps explain why the system can support more ambitious games, but it does not independently establish native 4K performance, a fixed developer memory allocation, thermal behavior or a reliability problem.
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