HPB, or Heat Path Block, is a copper-based thermal design originally created by Samsung for its Exynos 2600 processor . Instead of stacking DRAM directly on top of the system-on-chip (SoC) — a traditional layout that traps heat between layers — HPB places a copper heatsink directly on the silicon die and moves the DRAM to the side. This creates a direct thermal path from the hottest part of the processor to the cooling solution
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Leaked schematics of the Snapdragon 8 Elite Gen 6 Pro confirm a similar approach, with a "Heat Slug Sheet" positioned directly over the chipset package . Qualcomm is reportedly licensing or adapting the technology to manage the extreme heat generated by clock speeds that could exceed 5.0 GHz
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Despite adopting HPB, sources indicate Qualcomm's implementation may not match Samsung's native version. Tipster Reptalicant claims the HPB-like solution Qualcomm is testing delivers "inferior thermal dissipation" compared to Samsung's design in the Exynos 2600 . If accurate, this could mean that future Samsung Galaxy phones using the Exynos 2600 or 2700 will maintain performance under sustained load better than Snapdragon-powered equivalents
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Samsung itself reports that HPB on the Exynos 2600 improves heat flow by about 16% and makes the application processor 30% cooler than its predecessor . It remains to be seen whether Qualcomm's adapted version can match those numbers in production silicon.
Earlier leaks from industry sources claimed Qualcomm was testing six different configurations of the Snapdragon 8 Elite Gen 6 Pro, leading to speculation about aggressive binning of CPU and GPU cores . According to tipster @Reptalicant, reported by multiple outlets in June 2026, the reality is much simpler:
This means earlier rumors of binning by CPU core count or clock speed were incorrect. Qualcomm's segmentation strategy relies entirely on memory type.
The two retail versions of the Snapdragon 8 Elite Gen 6 Pro are distinguished by which memory standard they support:
LPDDR6 was standardized by JEDEC in July 2025 . The Snapdragon 8 Elite Gen 6 Pro is the first mobile chip expected to support it, with the standard non-Pro Snapdragon 8 Elite Gen 6 remaining on LPDDR5X
. The Pro chip also gets a larger 8 MB last-level cache (vs. 6 MB on the standard version) and the Adreno 850 GPU with 18 MB GMEM (vs. Adreno 845 with 12 MB)
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There is no confirmed evidence of a binned 7-core CPU option for the Snapdragon 8 Elite Gen 6 Pro. All leaks describe a 2+3+3 eight-core architecture (two Prime cores, three performance cores, three efficiency cores) for both the Pro and standard variants .
The earlier speculation of "six versions" was misinterpreted as binning. The two real variants — LPDDR5X and LPDDR6 — accomplish the same goal without Qualcomm needing to design, test, and validate a separate disabled-core chip .
Why not just cut cores? The cost of manufacturing the Snapdragon 8 Elite Gen 6 Pro is already extreme. TSMC's 2nm N2P wafers cost roughly $30,000 each — nearly double the cost of 3nm production . At those prices, a single chip is expected to cost OEMs between $300 and $320
. Adding another chip variant with a disabled core would increase validation costs and complexity without a clear manufacturing benefit, since all chips come from the same wafer anyway. Memory-controller differentiation is a lighter, cleaner way to serve two price tiers.
Samsung has officially confirmed that the Exynos 2700 is in development "without any setbacks" and is aimed at top-tier smartphones — strongly hinting at use in the Galaxy S27 series . The chip will reportedly continue and improve on the HPB thermal approach:
The early consensus from tipsters: Samsung's native HPB implementation is more effective than Qualcomm's adapted version, meaning Exynos-based Galaxy S27 units could achieve better sustained performance under load than Snapdragon-based models — assuming OEMs don't heavily modify the cooling solution .
The Snapdragon 8 Elite Gen 6 Pro appears destined for only the most premium Android devices — think Galaxy S27 Ultra, Xiaomi 17 Ultra, and similar $1,000+ phones. The base chip alone consuming nearly a third of the total bill of materials will likely push phone prices even higher . At the same time, Samsung's Exynos 2700 development signals that the company is investing heavily in custom silicon with superior thermal management, potentially creating a noticeable performance gap between Snapdragon and Exynos variants of the same Galaxy flagship.
The final word will depend on production silicon, device-level cooling design, and OEM tuning — none of which can be confirmed from leaked schematics and tipster reports. But the direction is clear: 2nm mobile chips deliver extraordinary performance at extraordinary cost, and thermal management has become the defining battleground for 2027's flagship phones.
Note: This article is based on pre-release leaks and industry reports. Final specifications, pricing, and availability may differ from what is reported here.
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