CPU A
Qualcomm Snapdragon 821
4 cores 2342 MHz 14 nanometers Adreno 530
Mobile processor comparison
Qualcomm Snapdragon 821 vs Qualcomm Snapdragon 685
Compare available catalogue specifications. The page highlights factual differences without declaring an overall winner.
CPU B
Qualcomm Snapdragon 685
8 cores 2800 MHz 6 nanometers Adreno 610
Compared fields
42
Different values
38
Quick factual highlights
Qualcomm Snapdragon 821
- Higher listed download speed
Qualcomm Snapdragon 685
- More CPU cores
- Higher maximum CPU clock
- Smaller manufacturing process
- Higher listed GPU clock
CPU
| Specification | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 685 |
|---|---|---|
| Architecture | 2x 2.342 GHz - Kryo2x 1.6 GHz - Kryo | 4x 2.8 GHz - Cortex-A734x 1.9 GHz - Cortex-A53 |
| CPU cores | 4 | 8 |
| Clock speed | 2342 MHz | 2800 MHz |
| Instruction set | ARMv8-A | ARMv8.2-A |
| Process technology | 14 nanometers | 6 nanometers |
| Transistors | 2 billion | Not available |
| TDP | 11 W | Not available |
Cache and memory
| Specification | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 685 |
|---|---|---|
| L1 cache | 64 KB | Not available |
| L2 cache | 3 MB | Not available |
| Memory type | LPDDR4 | LPDDR4X |
| Memory frequency | 1866 MHz | 2133 MHz |
| Memory bus | 4x 16 Bit | 2x 16 Bit |
| Maximum bandwidth | 29.8 Gbit/s | 17 Gbit/s |
| Maximum memory | 6 GB | 8 GB |
Graphics and AI
| Specification | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 685 |
|---|---|---|
| GPU | Adreno 530 | Adreno 610 |
| GPU architecture | Adreno 500 | Adreno 600 |
| GPU clock | 653 MHz | 1260 MHz |
| Execution units | 2 | Not available |
| Shaders | 256 | 128 |
| FLOPS | 519 Gigaflops | 319.2 Gigaflops |
| Vulkan | 1.0 | 1.1 |
| OpenCL | 2.0 | 2.0 |
| DirectX | 11.2 | 12.1 |
| Neural processor / NPU | Hexagon 680 | Hexagon 686 |
Display and media
| Specification | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 685 |
|---|---|---|
| Maximum display resolution | 3840 x 2160 | 2520 x 1080 |
| Maximum camera resolution | 1x 28MP, 2x 13MP | 1x 108MP, 2x 16MP |
| Video capture | 4K at 30FPS | 1K at 60FPS |
| Video playback | 4K at 30FPS | 1080p at 60FPS |
| Video codecs | H.264, H.265, VP8, VP9 | - H.264 - H.265 - VP8 - VP9 |
| Audio codecs | AIFF, CAF, MP3, MP4, WAV | - AIFF - CAF - MP3 - MP4 - WAV |
Connectivity
| Specification | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 685 |
|---|---|---|
| 4G | LTE Cat. 12 | LTE Cat. 13 |
| 5G | No | No |
| Download speed | Up to 600 Mbps | Up to 390 Mbps |
| Upload speed | Up to 150 Mbps | Up to 150 Mbps |
| Wi-Fi | 5 | 5 |
| Bluetooth | 4.1 | 5.2 |
| Navigation | GPS, GLONASS, Beidou, Galileo | GPS, GLONASS, Beidou, Galileo, QZSS, NAVIC |
General
| Specification | Qualcomm Snapdragon 821 | Qualcomm Snapdragon 685 |
|---|---|---|
| Release | August 2016 | March 2023 |
| Class | Flagship | Low end |
| Model number | MSM8996 Pro | SM6225-AD |
| Storage support | eMMC 5.1, UFS 2.0 | UFS 2.2 |
| Devices in database | 27 | 9 |
Real devices
Phones using these processors
Examples found in the existing device catalogue.
Qualcomm Snapdragon 821
4G
Samsung SM-G9298
- Display
- Super AMOLED 16M colors 1080 × 1920 pixels (4…
- RAM
- 4 GB
- Storage
- 64 GB
- Battery
- Li-Ion 2300 mAh
PDF manual
Samsung Galaxy Tab S3 WiFi
- Display
- Super AMOLED 2048 × 1536 pixels (9.70 inches)…
- RAM
- 4 GB
- Storage
- 32 GB
- Battery
- Li-Ion 6000 mAh
PDF manual 4G
Samsung Galaxy Tab S3 LTE
- Display
- Super AMOLED 2048 × 1536 pixels (9.70 inches)…
- RAM
- 4 GB
- Storage
- 32 GB
- Battery
- Li-Ion 6000 mAh
PDF manual 4G
LG G Pad 5 10.1 FHD
- Display
- IPS TFT 16M colors 1200 × 1920 pixels (10.10…
- RAM
- 4 GB
- Storage
- 32 GB
- Battery
- Li-Ion 8200 mAh
4G
LG Q9
- Display
- IPS TFT 16M colors 1440 × 3120 pixels (6.10 i…
- RAM
- 4 GB
- Storage
- 32 GB, 64 GB
- Battery
- Li-Po 3000 mAh
4G
LG G7+ Fit
- Display
- IPS TFT 16M colors 1440 × 3120 pixels (6.10 i…
- RAM
- 4 GB
- Storage
- 64 GB
- Battery
- Li-Ion 3000 mAh
PDF manual 4G
LG G7 Fit
- Display
- IPS TFT 16M colors 1440 × 3120 pixels (6.10 i…
- RAM
- 4 GB
- Storage
- 32 GB, 64 GB
- Battery
- Li-Po 3000 mAh
PDF manual 4G
LG G6+ Dual SIM
- Display
- IPS TFT 16M colors 1440 × 2880 pixels (5.70 i…
- RAM
- 4 GB
- Storage
- 128 GB
- Battery
- Li-Ion 3300 mAh
Qualcomm Snapdragon 685
4G
Oppo Reno12 FS 4G
- Display
- AMOLED 16.7M colors, 120 Hz, 1080 × 2400 pixe…
- RAM
- 8 GB
- Storage
- 512 GB
- Battery
- Li-Po 5000 mAh
4G
Oppo Reno12 F 4G
- Display
- AMOLED 16.7M colors, 120 Hz, 1080 × 2400 pixe…
- RAM
- 8 GB
- Storage
- 256 GB, 512 GB
- Battery
- Li-Po 5000 mAh
Honor Pad X9a WiFi
- Display
- IPS TFT 1.07G colors, 120 Hz, 1504 × 2508 pix…
- RAM
- 8 GB
- Storage
- 128 GB
- Battery
- Li-Ion 8300 mAh
4G
Honor Pad X9a
- Display
- IPS TFT 1.07G colors, 120 Hz, 1504 × 2508 pix…
- RAM
- 8 GB
- Storage
- 128 GB
- Battery
- Li-Ion 8300 mAh
4G
Honor X8c
- Display
- AMOLED 16.7M colors, 120 Hz, 1080 × 2412 pixe…
- RAM
- 6 GB, 8 GB
- Storage
- 128 GB, 256 GB, 512 GB
- Battery
- Li-Po 5000 mAh
Honor Pad X9 Pro
- Display
- IPS TFT 1.07G colors, 120 Hz, 1200 × 2000 pix…
- RAM
- 6 GB, 8 GB
- Storage
- 128 GB, 256 GB
- Battery
- Li-Po 8300 mAh
4G
Honor X7c 4G
- Display
- IPS TFT 16.7M colors, 120 Hz, 720 × 1610 pixe…
- RAM
- 6 GB, 8 GB
- Storage
- 128 GB, 256 GB
- Battery
- Li-Po 6000 mAh
Honor Pad X9
- Display
- IPS TFT 1.07G colors, 120 Hz, 1200 × 2000 pix…
- RAM
- 4 GB
- Storage
- 128 GB
- Battery
- Li-Po 7250 mAh
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