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Compare Snapdragon 4 Gen 2 vs Snapdragon 821 to understand their specifications, performance, architecture, graphics, and connectivity differences.

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Snapdragon 4 Gen 2 vs Snapdragon 821-In summary

Snapdragon 4 Gen 2 is a newer 5G chipset designed for budget smartphones, while Snapdragon 821 was a flagship processor from 2016. Snapdragon 4 Gen 2 focuses on efficiency, connectivity, and modern smartphone features.


  • Architecture: Snapdragon 4 Gen 2 uses a 4nm process with Cortex-A78 and Cortex-A55 cores, while Snapdragon 821 uses a 14nm process with Kryo cores.
  • CPU: Snapdragon 4 Gen 2 offers an octa-core CPU with up to 2.2 GHz frequency, while Snapdragon 821 has a quad-core CPU reaching up to 2.4 GHz.
  • GPU: Snapdragon 4 Gen 2 uses Adreno 613, while Snapdragon 821 features Adreno 530 graphics.
  • AI/NPU: Snapdragon 4 Gen 2 includes a newer Qualcomm AI Engine for improved AI tasks.
  • Target segment: Snapdragon 4 Gen 2 powers affordable 5G smartphones, while Snapdragon 821 was built for premium smartphones of its generation.

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Snapdragon 4 Gen 2 vs Snapdragon 821-Overview

The Snapdragon 821 was globally launched on 11 July 2016 as a premium flagship processor. It is based on a 14nm process and features a quad-core Kryo CPU, Adreno 530 GPU, and support for high-performance smartphones of its time. The chipset was used in flagship devices but is now discontinued. In India, Snapdragon 4 Gen 2 arrived through smartphones such as the Redmi 12 5G, launched on 1 August 2023. Snapdragon 821-powered smartphones were launched in India earlier, including devices from brands like ASUS and OnePlus, but these models are no longer officially available.

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Technical specifications - Snapdragon 4 Gen 2 vs Snapdragon 821

Comparing the technical specifications of the Snapdragon 4 Gen 2 and Snapdragon 821 highlights how smartphone processors have evolved over time. While the Snapdragon 821 was a flagship chipset built for premium devices in 2016, the Snapdragon 4 Gen 2 is designed for modern entry-level 5G smartphones with improved power efficiency, better AI capabilities, and advanced connectivity. The comparison below covers their CPU, GPU, memory, multimedia, and networking features.

General info

The Snapdragon 4 Gen 2 and Snapdragon 821 are built for different generations of smartphones. Launched in 2023 and 2016, respectively, the Snapdragon 4 Gen 2 focuses on efficient 5G performance for budget devices, while the Snapdragon 821 was developed to deliver flagship-level performance for premium smartphones of its time.

ComponentSnapdragon 4 Gen 2Snapdragon 821
Announced26 June 202311 July 2016
ClassEntry-level 5GFlagship
Model numberSM4450MSM8996 Pro
BrandQualcommQualcomm

CPU

The CPU determines how efficiently a processor handles everyday tasks, multitasking, and demanding applications. The Snapdragon 4 Gen 2 uses a newer octa-core architecture built on a 4nm process, delivering better power efficiency and balanced performance. The Snapdragon 821 features Qualcomm Kryo cores designed to provide flagship performance for the smartphones of its generation.

ComponentSnapdragon 4 Gen 2Snapdragon 821
Architecture2 × Cortex-A78 + 6 × Cortex-A552 × Kryo + 2 × Kryo
Cores84
FrequencyUp to 2.2GHzUp to 2.4GHz
Instruction setARMv8-AARMv8-A
Process4nm14nm
TDP5 W7 W
ManufacturingSamsungSamsung

Graphics

Graphics performance is important for gaming, video playback, and visual rendering. The Snapdragon 4 Gen 2 features the Adreno 613 GPU with newer architecture and improved efficiency. The Snapdragon 821 uses the Adreno 530 GPU, which delivered excellent graphics performance in flagship smartphones during its launch period.

ComponentSnapdragon 4 Gen 2Snapdragon 821
SoCSnapdragon 4 Gen 2Snapdragon 821
GPU nameAdreno 613Adreno 530
ArchitectureAdrenoAdreno
GPU frequency955MHz624MHz
Execution unitsNot availableNot available
Shading unitsNot availableNot available
Total shadersNot availableNot available
FLOPSNot available0.5 TFLOPS
Vulkan version1.11.0
OpenCL version2.02.0
DirectX version1212

Memory

Memory support affects multitasking, application loading, and overall responsiveness. The Snapdragon 4 Gen 2 supports faster LPDDR5 memory with higher bandwidth, enabling smoother performance in modern smartphones. The Snapdragon 821 supports LPDDR4 memory, which was the flagship standard during its release.

ComponentSnapdragon 4 Gen 2Snapdragon 821
Memory typeLPDDR5LPDDR4
Memory frequency3,200MHz1,866MHz
Bus64-bit64-bit
Max bandwidth25.6GB/s14.9GB/s
Max size8GB6GB

Multimedia (ISP)

The multimedia engine determines camera capabilities, display support, and video recording performance. The Snapdragon 4 Gen 2 supports higher-resolution cameras and newer imaging technologies, making it better suited for current smartphones. The Snapdragon 821 offered premium multimedia capabilities during its generation, including 4K video recording and playback.

ComponentSnapdragon 4 Gen 2Snapdragon 821
Storage typeUFS 2.2UFS 2.0
Max display resolution2520 × 1080 pixel2560 × 1600 pixel
Max camera resolution108MP28MP
Video capture1080p at 60fps4K at 30fps
Video playback1080p at 60fps4K at 60fps
Video codecsH.264, H.265, VP9H.264, H.265
Audio codecsAAC, aptX, MP3AAC, aptX, MP3

Connectivity and network

Connectivity is one of the biggest differences between these processors. The Snapdragon 4 Gen 2 supports 5G networks, higher mobile data speeds, and Bluetooth 5.1, making it better suited for modern smartphones. The Snapdragon 821 is limited to 4G LTE connectivity but still offers reliable wireless performance for older devices.

ComponentSnapdragon 4 Gen 2Snapdragon 821
ModemSnapdragon X61Snapdragon X12
4G supportYesYes
5G supportYesNo
Download speedUp to 2.5GbpsUp to 600Mbps
Upload speedUp to 900MbpsUp to 150Mbps
Wi-FiWi-Fi 5Wi-Fi 5
Bluetooth5.14.1
NavigationGPS, GLONASS, BeiDou, GalileoGPS, GLONASS, BeiDou

Benchmarking - Snapdragon 4 Gen 2 vs Snapdragon 821

Benchmark scores provide a practical comparison of the Snapdragon 4 Gen 2 and Snapdragon 821 across CPU, GPU, memory, and overall system performance. While the Snapdragon 821 was a flagship chipset in its time, the Snapdragon 4 Gen 2 benefits from a newer 4nm manufacturing process, improved power efficiency, and support for modern smartphone features, making it a stronger choice for everyday performance.

AnTuTu 10

AnTuTu 10 measures overall smartphone performance by evaluating CPU, GPU, memory, and user experience. The Snapdragon 4 Gen 2 achieves a higher overall score, thanks to its newer architecture and improved efficiency. The Snapdragon 821 continues to offer capable performance for older flagship devices, particularly in graphics-intensive tasks.

ComponentSnapdragon 4 Gen 2Snapdragon 821
CPU1,94,0001,15,000
GPU85,0001,05,000
Memory1,05,00065,000
UX95,00070,000
Total score4,79,0003,55,000

Geekbench 6

Geekbench 6 measures single-core and multi-core CPU performance for everyday tasks such as web browsing, multitasking, and productivity. The Snapdragon 4 Gen 2 delivers higher scores with its newer CPU architecture, resulting in better responsiveness and improved efficiency compared to the Snapdragon 821.

ComponentSnapdragon 4 Gen 2Snapdragon 821
Single-core score920680
Multi-core score2,1501,650

3DMark

The 3DMark benchmark evaluates graphics performance and stability during demanding gaming workloads. The Snapdragon 821 features the powerful Adreno 530 GPU, which was a standout performer in its generation. The Snapdragon 4 Gen 2 delivers balanced graphics performance with higher stability and better power efficiency, making it well suited for modern mobile gaming.

ComponentSnapdragon 4 Gen 2Snapdragon 821
Stability98%96%
Graphics test1,8501,700
Score1,9501,800

Disclaimer: Benchmark scores are approximate and may vary depending on the smartphone model, RAM capacity, software version, cooling system, and testing conditions.

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