Snapdragon 835 vs Snapdragon 821

Qualcomm at CES 2017 has introduced the latest Qualcomm Snapdragon 835 processor with X16 LTE  manufactured using the 10nm FinFET process node.  Qualcomm® Quick Charge 4 technology: 20% faster, 30% more charge from zero to 50% in 15 minutes Comparison between Snapdragon 835 vs Snapdragon 821

Snapdragon 835 processor is 35% smaller and uses 25% less power than previous designs, providing maximum performance, long battery life and super fast charging for today’s power users.

Qualcomm Kryo 280 CPU Up to 2.45 GHz Manufactured in 10nm FinFET to
deliver our most power-efficient
architecture to date whereas Snapdragon 821 Custom 64-bit Kryo quad-core CPU up to 2.4GHz + 14nm FinFET process technology

Qualcomm 835 supports + Up to 16 MP dual camera ,+ Up to 32 MP single camera + Qualcomm  Clear Sight camera it features, Hybrid Autofocus, Optical,Zoom, hardware-accelerated Face,
Detection, HDR Video Recording compared to  Qualcomm Spectra dual ISPs support up to
28 megapixels

 Qualcomm Adreno 540 Visual Processing Subsystem: Advanced 3-D graphics rendering and up to 60X morecolors help deliver life-like visuals for the most immersive experiences  Snapdragon 821’s Adreno 530 GPU and custom Kryo CPU creates enough compute performance to enable console quality games and exciting, next generation virtual reality applications

Qualcomm Quick Charge 4  technology provides  20% faster, 30% more efficient than previous generation, charge from zero to 50% in 15 minute Snapdragon 821 provides additional 5% over the previous generation plus charge a typical phone from zero to 80 percent in about 35 minutes, with Qualcomm® Quick Charge 3.0 technology

Snapdragon 835 vs Snapdragon 821

CPU : Four 2.45GHz Kryo 280 cores Four 1.9GHz Kryo 280 cores	Two 2.35GHz Kryo cores Two 1.6GHz Kryo cores
GPU:  Adreno 540 GPU	Adreno 530 GPU
Node 10nm FinFET (LPE)	14nm FinFET (LPP)
Memory   Dual-channel LPDDR4X 1866MHz 29.8GB/s	Dual-channel LPDDR4X 1866MHz 29.8GB/s
Storage eMMC 5.1,UFS 2.1	eMMC 5.1 UFS 2.0
Camera Single camera  up to 32MP and up to 16MP dual camera	Dual ISP up to 28MP
Modem : X16 gigabit LTE Download up to 1000Mbit/sec Upload up to 150Mbit/sec	X16 gigabit LTE Download up to 1000Mbit/sec Upload up to 150Mbit/sec
Bluetooth 5	Bluetooth 4.2
Fingerprint scanner	Fingerprint scanner
Quick Charge 4.0	Quick Charge 4.0
Form Factor-Smartphones, Laptops , Tablets	Form Factor- Smartphones
USB 3.1	USB 3.0