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A June 24, 2024 report from TweakReviews identified an AMD “Maple Rev.B” evaluation-board configuration associated with the then-unreleased Strix Halo mobile APU. The listing reportedly specified up to 128GB of memory and a 120W thermal design power (TDP). It was a development-board sighting—not an AMD retail launch, a consumer product listing, or a performance test.
What the Maple Rev.B sighting actually showed
TweakReviews’ shipping and customs-information report connected the Maple Rev.B board to AMD’s Strix Halo project and attributed two notable capabilities to it: support for up to 128GB of memory and a 120W TDP. The report did not establish a retail release, final system design, cooling solution, firmware behavior, sustained power limits, or benchmark results.
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That distinction matters. Engineering and evaluation boards are used to validate silicon, memory, firmware and platform designs. Their listed specifications can describe a target configuration rather than a product that consumers can buy. No verified retail listing for the Maple Rev.B board is established by the available reporting.
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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Strix Halo’s official name is Ryzen AI Max+ 395
AMD later adopted the Ryzen AI Max 300 Series branding. On AMD’s current processor specification page, Strix Halo is identified as the former codename for the Ryzen AI Max+ 395.
#1 Best Overall
- AMD Socket AM4: Ready to support AMD Ryzen 5000/4000/3000 Series Processors
- Enhanced Power Solution: Digital 3+3 VRM Design and premium chokes and capacitors for steady power delivery.
- Advanced Thermal Armor: Chipset heatsinks for better heat dissipation.
- Boost Your Memory: Compatible with DDR4 and supports 4 DIMMS with Extreme Memory Profile support.
- Comprehensive Connectivity: 1x Ultra Durable PCIe 4.0 x16 slot, 1x PCIe 4.0 M.2 slot, 1x PCIe 3.0 M.2 slot, 4x USB 3.2 Gen 1 ports for hassle-free setup.
The production processor specifications provide the useful context for the earlier board report:
| Specification | Ryzen AI Max+ 395 |
|---|---|
| CPU cores | 16 Zen 5 cores |
| Integrated graphics | 40 graphics compute units |
| Memory interface | 256-bit LPDDR5x |
| Supported memory | Up to 128GB LPDDR5x-8000 |
| Default TDP | 55W |
| Configurable TDP range | 45–120W |
These are processor-level specifications. A particular laptop, mini PC or developer system may configure memory capacity, cooling and power differently.
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- Play some of the most popular games at 1080p with the fastest processor graphics in the world, no graphics card required
- 8 Cores and 16 processing threads, bundled with the AMD Wraith Stealth cooler
- 4.6 GHz Max Boost, unlocked for overclocking, 20 MB cache, DDR4-3200 support
- For the advanced Socket AM4 platform. Maximum Operating Temperature (Tjmax)-95°C
Is 120W the default power level?
No. AMD lists 55W as the default TDP for Ryzen AI Max+ 395 and a 45–120W configurable range. Therefore, the 120W figure reported for Maple Rev.B should be understood as a possible platform or processor configuration at the top of AMD’s official range, not as the power draw of every Strix Halo system.
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Rank #3
- AM4 socket: Ready for AMD Ryzen 3000 and 5000 series, plus 5000 and 4000 G-series desktop processors.Bluetooth v5.2
- Best gaming connectivity: PCIe 4.0-ready, dual M.2 slots, USB 3.2 Gen 2 Type-C, plus HDMI 2.1 and DisplayPort 1.2 output
- Smooth networking: On-board WiFi 6E (802.11ax) and Intel 2.5 Gb Ethernet with ASUS LANGuard
- Robust power solution: 12+2 teamed power stages with ProCool power connector, high-quality alloy chokes and durable capacitors
- Renowned software: Bundled 60 days AIDA64 Extreme subscription and intuitive UEFI BIOS dashboard
Why 128GB is significant for an integrated GPU
Ryzen AI Max+ systems use unified memory: the CPU and integrated GPU draw from the same LPDDR5x pool. AMD’s processor page lists up to 128GB, while its January 2025 CES portfolio announcement said that Ryzen AI Max systems could provide up to 96GB for graphics. The latter is a family-level capability statement, not a promise that every 128GB configuration reserves exactly 96GB for the GPU.
A large shared memory pool can benefit local AI models, content-creation applications and GPU workloads that would otherwise be constrained by dedicated graphics memory. It does not, by itself, establish a particular level of graphics performance; bandwidth, power limits, drivers and software optimization remain decisive.
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- AMD Ryzen 5 5500 Desktop Processor, 6 Cores, 12 Threads, 4.2 GHz Max Boost, Unlocked Memory Overclocking. L2+L3 Cache 19 MB, 65W TDP, DDR4 Supported, PCIe 3.0 Support. For the Advanced Socket AM4 Platform
- Can Deliver Fast 100 Plus FPS Performance in the World's Most Popular Games; AMD Wraith Stealth Cooler Included; Discrete Graphics Card Required; No ECC Support; Supports Windows 10 and Windows 11 64-Bit Editions
- GABYTE B550M DS3H AC R2 Motherboard, Micro ATX Form Factor, Dual channel memory DDR4 up to 128GB, PCIe 4.0 Support, 2x M.2 connector, 4x SATA 6Gb/s connectors, USB 3.2 Gen 1 Type C Support, Realtek Wi-Fi RTL8821CE, BLUETOOTH 5.0 Support for Windows 11/10 64-bit
- AMD Socket AM4: Ready to support AMD Ryzen 5000/4000/3000 Series Processors
- Enhanced Power Solution: Digital 5+3 VRM Design and premium chokes and capacitors for steady power delivery
The later Ryzen AI Halo developer platform
AMD subsequently documented a real Ryzen AI Halo Developer Platform built around Ryzen AI Max+ 395. Its published configuration includes:
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- Radeon 8060S integrated graphics with 40 RDNA 3.5 compute units
- 128GB of LPDDR5x memory at 8000 MT/s
- 256GB/s memory bandwidth
- 2TB M.2 SSD
- 120W TDP
This developer system confirms that AMD later offered a documented platform combining the processor, 128GB memory and 120W setting. It should not be treated as proof that the earlier Maple Rev.B board was the same hardware or reached retail channels.
Best Value
- Pure gaming performance with smooth 100+ FPS in the world's most popular games
- 6 Cores and 12 processing threads, based on AMD "Zen 5" architecture
- 5.4 GHz Max Boost, unlocked for overclocking, 38 MB cache, DDR5-5600 support
- For the state-of-the-art Socket AM5 platform, can support PCIe 5.0 on select motherboards
- Cooler not included
What is—and is not—confirmed
| Question | What the available evidence supports |
|---|---|
| Was a Strix Halo board spotted? | Yes. TweakReviews reported a Maple Rev.B evaluation-board configuration on June 24, 2024. |
| Did the report mention 128GB memory and 120W? | Yes, as reported development-board details. |
| Was Maple Rev.B a retail product? | Not established. |
| What is Strix Halo called now? | Ryzen AI Max+ 395, part of the Ryzen AI Max 300 Series. |
| Does Ryzen AI Max+ 395 support 128GB? | AMD lists support for up to 128GB LPDDR5x-8000. |
| Is 120W the standard setting? | No. AMD lists 55W default TDP and 45–120W configurable TDP. |
| Are performance results available from the sighting? | No independent testing is established by the cited reports. |
What prospective buyers should take from the report
The sighting was an early indication of the direction AMD was pursuing: a high-core-count mobile processor with unusually large unified memory and a power envelope that could scale to 120W in suitable systems. The later Ryzen AI Max+ 395 specifications and Ryzen AI Halo developer platform show that those broad capabilities became documented products, but they do not turn the Maple Rev.B board into a confirmed consumer model.
Anyone evaluating a Ryzen AI Max system should check the exact machine’s installed memory, graphics-memory allocation, firmware power modes, cooling design and adapter rating. The processor’s maximums are not guarantees that every system implements them.
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