Snapdragon 835 vs. Snapdragon 821: How much of an upgrade is it?
Qualcomm formally detailed the Snapdragon 835 during its CES keynote, serving up a look at what's new in this year's flagship SoC. The Snapdragon 835 offers improvements across the board, and Qualcomm has incorporated a slew of new features, including Bluetooth 5, gigabit LTE, 802.11ad Wi-Fi, and much more.
The 14nm Snapdragon 820/821 was no slouch, but the move to the 10nm node has allowed Qualcomm to register huge gains in energy efficiency and performance. The Snapdragon 835 is 27% faster while consuming 40% less energy, with the overall size being 30% smaller than the previous generation. Here's a look at some of the key areas where the SoC differs from last year's offering:
Category | Snapdragon 835 | Snapdragon 821 |
---|---|---|
Node | 10nm FinFET (LPE) | 14nm FinFET (LPP) |
CPU | Four 2.45GHz Kryo 280 coresFour 1.9GHz Kryo 280 cores | Two 2.35GHz Kryo coresTwo 1.6GHz Kryo cores |
GPU | Adreno 540(OpenGL ES 3.2, OpenCL 2.0, Vulkan 1.0, DirectX 12) | Adreno 530(OpenGL ES 3.1, OpenCL 2.0, Vulkan 1.0, DirectX 11.2) |
Memory | Dual-channel LPDDR4X1866MHz29.8GB/s | Dual-channel LPDDR41866MHz29.8GB/s |
Storage | eMMC 5.1UFS 2.1 | eMMC 5.1UFS 2.0 |
Camera | Dual ISP up to 32MP16MP dual camera | Dual ISP up to 28MP |
Modem | X16 gigabit LTEDownload up to 1000Mbit/secUpload up to 150Mbit/sec | X12 LTEDownload up to 600Mbit/secUpload up to 150Mbit/sec |
Bluetooth | Bluetooth 5 | Bluetooth 4.2 |
Wi-Fi | 802.11ad multi-gigabit Wi-Fi | 802.11ac gigabit Wi-Fi |
Charging | Quick Charge 4.0 | Quick Charge 3.0 |
We'll have to wait until the Snapdragon 835 makes its way to consumer devices — which is slated to be sometime later this quarter — before we can take a detailed look at how it fares next to last year's Snapdragon 820/821. However, based on the hardware and the node shrink, it looks like it will be another good year for Qualcomm in the high-end mobile SoC space.
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Harish Jonnalagadda is Android Central's Senior Editor of Asia. In his current role, he oversees the site's coverage of Chinese phone brands, networking products, and AV gear. He has been testing phones for over a decade, and has extensive experience in mobile hardware and the global semiconductor industry. Contact him on Twitter at @chunkynerd.