Snapdragon 4 Gen 6 (SM4875) Leak: A Detailed Spec-by-Spec Breakdown
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6. Key upgrades include a new PCIe Gen 3 interface enabling Wi Fi 6 and Bluetooth 6.0, but Wi Fi 7 is not supported.
Published byEdited with DeepSeek-V4-FlashImages generated with GPT Image 1.5
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6.
Key upgrades include a new PCIe Gen 3 interface enabling Wi Fi 6 and Bluetooth 6.0, but Wi Fi 7 is not supported.
Important caveat: All details come from a leaked internal document, not an official Qualcomm announcement.
Search & fact-check with cited sources for What detailed specifications has the confidential Qualcomm engineering document for the upcomingA leaked Qualcomm engineering document details the Snapdragon 4 Gen 6 (SM4875 'Poros') ahead of its expected 2027 launch.
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Create a landscape editorial hero image for this Studio Global article: Search & fact-check with cited sources for What detailed specifications has the confidential Qualcomm engineering document for the upcoming. Article summary: A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed "Poros"), expected to be marketed as the Snapdragon 4 Gen 6. The document carries Qualcomm's intern. Topic tags: general, documentation, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks,
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A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed "Poros"), expected to be marketed as the Snapdragon 4 Gen 6. The document carries Qualcomm's internal trade secret markings, and NotebookCheck cautions that final specifications may change before the chip's expected 2027 market arrival . Below is a verified summary of every leaked specification.
CPU: Familiar Configuration, No Changes
The new budget chip keeps the same CPU setup as its predecessor, the Snapdragon 4 Gen 5 . This means no raw CPU performance uplift, but the efficiency and cost advantages remain.
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What is the short answer to "Snapdragon 4 Gen 6 (SM4875) Leak: A Detailed Spec-by-Spec Breakdown"?
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6.
What are the key points to validate first?
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6. Key upgrades include a new PCIe Gen 3 interface enabling Wi Fi 6 and Bluetooth 6.0, but Wi Fi 7 is not supported.
What should I do next in practice?
Important caveat: All details come from a leaked internal document, not an official Qualcomm announcement.
Snapdragon 4 Gen 6 (SM4875) Leak: A Detailed Spec-by-Spec Breakdown
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6. Key upgrades include a new PCIe Gen 3 interface enabling Wi Fi 6 and Bluetooth 6.0, but Wi Fi 7 is not supported.
Published byEdited with DeepSeek-V4-FlashImages generated with GPT Image 1.5
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6.
Key upgrades include a new PCIe Gen 3 interface enabling Wi Fi 6 and Bluetooth 6.0, but Wi Fi 7 is not supported.
Important caveat: All details come from a leaked internal document, not an official Qualcomm announcement.
Search & fact-check with cited sources for What detailed specifications has the confidential Qualcomm engineering document for the upcomingA leaked Qualcomm engineering document details the Snapdragon 4 Gen 6 (SM4875 'Poros') ahead of its expected 2027 launch.
AI Prompt
Create a landscape editorial hero image for this Studio Global article: Search & fact-check with cited sources for What detailed specifications has the confidential Qualcomm engineering document for the upcoming. Article summary: A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed "Poros"), expected to be marketed as the Snapdragon 4 Gen 6. The document carries Qualcomm's intern. Topic tags: general, documentation, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks,
openai.com
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed "Poros"), expected to be marketed as the Snapdragon 4 Gen 6. The document carries Qualcomm's internal trade secret markings, and NotebookCheck cautions that final specifications may change before the chip's expected 2027 market arrival . Below is a verified summary of every leaked specification.
CPU: Familiar Configuration, No Changes
The new budget chip keeps the same CPU setup as its predecessor, the Snapdragon 4 Gen 5 . This means no raw CPU performance uplift, but the efficiency and cost advantages remain.
Studio Global AI
Continue your research
This page includes a source-backed answer you can continue inside Studio Global.
What is the short answer to "Snapdragon 4 Gen 6 (SM4875) Leak: A Detailed Spec-by-Spec Breakdown"?
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6.
What are the key points to validate first?
A confidential Qualcomm data sheet dated March 2026, obtained by NotebookCheck, details the unreleased SM4875 (codenamed 'Poros'), expected to be marketed as the Snapdragon 4 Gen 6. Key upgrades include a new PCIe Gen 3 interface enabling Wi Fi 6 and Bluetooth 6.0, but Wi Fi 7 is not supported.
What should I do next in practice?
Important caveat: All details come from a leaked internal document, not an official Qualcomm announcement.
Kryo Gold (performance): 2 cores based on Cortex-A78, each with 256 KB L2 cache .
Kryo Silver (efficiency): 6 cores based on Cortex-A55, each with 64 KB L2 cache .
L3 cache: 1 MB shared across all cores .
Manufacturing Process: Staying on TSMC 4nm
The SM4875 continues with the same TSMC 4nm process used for the Snapdragon 4 Gen 5 . This is a proven node that balances power efficiency with cost — important for the budget segment.
GPU: The Biggest Upgrade
The most significant change is the move from an Adreno 4-series GPU to an Adreno 6-series GPU. NotebookCheck states this promises "another significant performance leap" over the 4 Gen 5's already large generational gain . For budget phones, this could mean dramatically better gaming and graphics performance.
Memory: LPDDR5 Arrives, LPDDR4X Stays
Dual-channel LPDDR5 at 3,200 MHz is now supported — a new addition .
LPDDR4X remains supported as a lower-cost OEM option for cheaper device builds .
This flexibility lets phone makers choose between higher memory bandwidth (for performance) or lower cost, depending on the target price point.
Connectivity & PCIe: Wi-Fi 6, Bluetooth 6.0, but No Wi-Fi 7
A new single-lane PCIe Gen 3 interface is added, but it's not for storage or general expansion. Instead, it's used specifically to connect newer WLAN companion chips .
WCN6450 offers Wi-Fi 6 (1×1) + Bluetooth 6.0 over the PCIe Gen 3 lane .
WCN6750 offers Wi-Fi 6 (2×2) + Bluetooth 5.2 over PCIe Gen 3 .
Two legacy options (WCN3998-2 and WCN3988) connect over SLIMbus instead, supporting only Wi-Fi 5 and Bluetooth 5.x .
Wi-Fi 7 is not supported by any of the four companion chip options listed in the data sheet .
Package Size: Bigger Chip, More I/O
The SM4875 uses a PSP917 package, measuring 11.1 × 12.0 mm. This is larger than the Snapdragon 4 Gen 5's PSP808 package, reflecting added I/O for PCIe and a higher GPIO count .
Security Hardware
Hardware-based ECC image authentication .
Widevine L1 support for HD streaming .
Updated Trust Management Engine for root-of-trust functions .
Launch Window
NotebookCheck states that the SM4875 points to a possible 2027 launch for commercial devices using the chip . That could mean budget phones arriving well after the chip's initial documentation.
Key Caveat: A Leak, Not an Official Announcement
All of these details come from a leaked internal document (dated March 2026) rather than an official Qualcomm announcement. NotebookCheck explicitly notes that final specifications may change before the product reaches the market . No other independent source has confirmed the document's contents.
What This Means for Budget Phones
The Snapdragon 4 Gen 6 appears to be a focused upgrade: no CPU changes, but meaningful improvements in GPU, memory bandwidth, and connectivity. For buyers of affordable Android phones in 2027, the biggest real-world difference will likely come from the Adreno 6-series GPU and the availability of LPDDR5 memory — both of which could significantly improve gaming and multitasking in the sub-$200 segment.
Kryo Gold (performance): 2 cores based on Cortex-A78, each with 256 KB L2 cache .
Kryo Silver (efficiency): 6 cores based on Cortex-A55, each with 64 KB L2 cache .
L3 cache: 1 MB shared across all cores .
Manufacturing Process: Staying on TSMC 4nm
The SM4875 continues with the same TSMC 4nm process used for the Snapdragon 4 Gen 5 . This is a proven node that balances power efficiency with cost — important for the budget segment.
GPU: The Biggest Upgrade
The most significant change is the move from an Adreno 4-series GPU to an Adreno 6-series GPU. NotebookCheck states this promises "another significant performance leap" over the 4 Gen 5's already large generational gain . For budget phones, this could mean dramatically better gaming and graphics performance.
Memory: LPDDR5 Arrives, LPDDR4X Stays
Dual-channel LPDDR5 at 3,200 MHz is now supported — a new addition .
LPDDR4X remains supported as a lower-cost OEM option for cheaper device builds .
This flexibility lets phone makers choose between higher memory bandwidth (for performance) or lower cost, depending on the target price point.
Connectivity & PCIe: Wi-Fi 6, Bluetooth 6.0, but No Wi-Fi 7
A new single-lane PCIe Gen 3 interface is added, but it's not for storage or general expansion. Instead, it's used specifically to connect newer WLAN companion chips .
WCN6450 offers Wi-Fi 6 (1×1) + Bluetooth 6.0 over the PCIe Gen 3 lane .
WCN6750 offers Wi-Fi 6 (2×2) + Bluetooth 5.2 over PCIe Gen 3 .
Two legacy options (WCN3998-2 and WCN3988) connect over SLIMbus instead, supporting only Wi-Fi 5 and Bluetooth 5.x .
Wi-Fi 7 is not supported by any of the four companion chip options listed in the data sheet .
Package Size: Bigger Chip, More I/O
The SM4875 uses a PSP917 package, measuring 11.1 × 12.0 mm. This is larger than the Snapdragon 4 Gen 5's PSP808 package, reflecting added I/O for PCIe and a higher GPIO count .
Security Hardware
Hardware-based ECC image authentication .
Widevine L1 support for HD streaming .
Updated Trust Management Engine for root-of-trust functions .
Launch Window
NotebookCheck states that the SM4875 points to a possible 2027 launch for commercial devices using the chip . That could mean budget phones arriving well after the chip's initial documentation.
Key Caveat: A Leak, Not an Official Announcement
All of these details come from a leaked internal document (dated March 2026) rather than an official Qualcomm announcement. NotebookCheck explicitly notes that final specifications may change before the product reaches the market . No other independent source has confirmed the document's contents.
What This Means for Budget Phones
The Snapdragon 4 Gen 6 appears to be a focused upgrade: no CPU changes, but meaningful improvements in GPU, memory bandwidth, and connectivity. For buyers of affordable Android phones in 2027, the biggest real-world difference will likely come from the Adreno 6-series GPU and the availability of LPDDR5 memory — both of which could significantly improve gaming and multitasking in the sub-$200 segment.
