Snapdragon 845 Mobile Platform

The Snapdragon 845 boasts a new Kryo 385 CPU architecture and an upgraded Adreno 630 GPU. The chip is built on Samsung’s 10nm LPP FinFET, its second generation 10nm node that offers “10-percent higher performance or 15-percent lower power consumption compared to its first generation”. Just like last year, the Kryo 385 is “built on Arm Cortex technology“. In other words a customized off-the-shelf design from Arm, that Qualcomm says promises up to a 25 performance uplift compared with the last generation Snapdragon 835.

Qualcomm is keeping its new Kryo 385 architecture close to its chest, but the introduction of a L3 cache reveals it’s based on Arm’s latest CPUs.

As we predicted, this new design does indeed appear to be based on Arm’s DynamIQ technology and latest Cortex-A75 and A55 CPU designs. The giveaway is in the newly introduced 2 MB of shared L3 cache, a feature that was introduced with DynamIQ to greatly improve task and memory sharing capabilities between different core types in the shared cluster. The four performance cores clock up to 2.8 GHz and are paired with four energy efficient cores that can reach 1.7 GHz. Presumably these are now sat in the same cluster, giving the potential for superior energy aware task scheduling and lower memory latency.

 

Snapdragon 845 Snapdragon 835 Snapdragon 821
CPU Core Semi-custom ARM Cortex – Kryo 385 Semi-custom ARM Cortex – Kryo 280 Fully-custom – Kryo
CPU Config 4x 2.8GHz (Cortex-A75)
4x 1.7GHz (Cortex-A55)
4x 2.45GHz (Cortex-A73)
4x 1.9GHz (Cortex-A53)
2x 2.35GHz Kryo
2x 1.6GHz Kryo
GPU Adreno 630 Adreno 540 Adreno 530
DSP Hexagon 685 with HVX Hexagon 682 with HVX Hexagon 680
Process 10nm LPP FinFET 10nm LPE FinFET 14nm LLP FinFET

o help download and share this higher quality content, the Snapdragon 845 boasts an improved Wi-Fi modem and the company’s X20 LTE modem for faster than gigabit data speeds. The X20 LTE modem its Category 18 LTE compliant for up to 1.2 Gbps downloads and 150 Mbps uploads. The modem also supports License Assisted Access (LAA) for unlicensed spectrum, 5x carrier aggregation, 4×4 MIMO on up to 3 carriers, and dual SIM-dual VoLTE. On the WiFi side, there’s diversity-enhanced 60 GHz 802.11ad Wi-Fi for more robust multi-gigabit coverage at speeds up to 4.6 Gbps. There’s also integrated 802.11ac Wi-Fi with advanced features that provide up to a 16x faster connection setup, simultaneous dual-band support, and 30 percent more capacity utilization. Downloading and uploading content shouldn’t be an issue.

Snapdragon 845 Snapdragon 835 Snapdragon 821
Camera support 32MP single / 16MP dual
Hybrid AF, HDR video. multi-frame noise reduction
32MP single / 16MP dual
Hybrid AF, HDR video
28MP single / 14MP dual
Hybrid AF, HDR video
Video capture 4K UHD @ 60fps 4K UHD @ 30fps 4K UHD @ 30fps
Video playback 4K UHD @ 60fps, 10-bit H.264 (AVC) and H.265 (HEVC) 4K UHD @ 60fps, 10-bit H.264 (AVC) and H.265 (HEVC) 4K UHD @ 60fps, 10-bit H.264 (AVC) and H.265 (HEVC)
Charging Quick Charge 4+
(USB Type-C & USB Power Delivery support)
Quick Charge 4.0
(USB Type-C & USB Power Delivery support)
Quick Charge 3.0
Modem x20 LTE
1200 Mbps down
150 Mbps up
X16 LTE
1000 Mbps down
150 Mbps up
X12 LTE
600 Mbps down
150 Mbps up

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