Qualcomm Snapdragon 678 VS Qualcomm Snapdragon 845

Comparison of video cards Qualcomm Snapdragon 678 vs Qualcomm Snapdragon 845 in benchmarks and specifications.

Differences Specifications Benchmarks

Differences

Top features of Qualcomm Snapdragon 845

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Higher clock speed

1.80 GHz 1.70 GHz

Around -6% better clock speed
Higher turbo clock speed

2.80 GHz 2.20 GHz

Around 21% better overclocked clock speed

Top features of Qualcomm Snapdragon 678

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Specifications

Complete list of technical specifications

Qualcomm Snapdragon 845 Qualcomm Snapdragon 678

CPU generation and family

Let's find out which one of Qualcomm Snapdragon 845 and Qualcomm Snapdragon 678 is of a more recent generation, and what segment it belongs to.

Specification	Value
Name	Qualcomm Snapdragon 845 Qualcomm Snapdragon 678
Segment	Mobile Mobile
Family	Qualcomm Snapdragon Qualcomm Snapdragon
Generation	5 7
CPU group	Qualcomm Snapdragon 845 Qualcomm Snapdragon 675/678
Predecessor	-- Qualcomm Snapdragon 675

CPU Cores and Base Frequency

In this block we are going to compare Qualcomm Snapdragon 845 vs Qualcomm Snapdragon 678 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

Specification	Value
Frequency	1.80 GHz 1.70 GHz
CPU Cores	8 8
Turbo (1 Core)	2.80 GHz 2.20 GHz
CPU Threads	8 8
Turbo (8 Cores)	2.80 GHz 1.70 GHz
Hyperthreading	No No
Overclocking	No No
Core architecture	hybrid (big.LITTLE) hybrid (big.LITTLE)
A core	4x Kryo 385 Gold 2x Kryo 460 Gold
B core	4x Kryo 385 Silver 6x Kryp 460 Silver

Internal Graphics

Common specifications for integrated graphics cards in Qualcomm Snapdragon 845 and Qualcomm Snapdragon 678 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

Specification	Value
GPU name	Qualcomm Adreno 630 Qualcomm Adreno 612
GPU frequency	0.70 GHz 0.85 GHz
GPU (Turbo)	No turbo 0.85 GHz
Shader	256 0
Max. GPU Memory	8 GB --
Max. displays	2 0
Generation	4 6
DirectX Version	11 12.1
Technology	10 nm 11 nm
Release date	Q1/2018

Hardware codec support

Let's compare the support of video codecs between Qualcomm Snapdragon 845 and Qualcomm Snapdragon 678. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

Specification	Value
h265 / HEVC (8 bit)	Decode Decode
h265 / HEVC (10 bit)	Decode Decode
h264	Decode / Encode Decode / Encode
VP9	Decode Decode
VP8	Decode Decode
AV1	No No
AVC	Decode Decode
VC-1	Decode Decode
JPEG	Decode / Encode Decode / Encode

Memory & PCIe

To choose the best model between Qualcomm Snapdragon 845 and Qualcomm Snapdragon 678 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

Specification	Value
Memory type	LPDDR4X-1866 LPDDR4X-1866
Max. Memory	8 GB
ECC	No No
Memory channels	4 2

Encryption

AES-NI encryption support for CPUs Qualcomm Snapdragon 845 and Qualcomm Snapdragon 678.

Specification	Value
AES-NI	No No

Thermal Management

Let's find out what TDP value would be better for Qualcomm Snapdragon 845 or Qualcomm Snapdragon 678? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

Specification	Value

Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for Qualcomm Snapdragon 845 and Qualcomm Snapdragon 678 CPUs along with a list of ISA extensions.

Specification	Value
Instruction set (ISA)	ARMv8-A64 (64 bit) ARMv8-A64 (64 bit)
Virtualization	None None
L2-Cache	0.51 MB --
L3-Cache	2.00 MB --
Architecture	Kryo 385 Kryo 460
Technology	10 nm 11 nm
Socket	N/A N/A
Release date	Q1/2018 Q4/2020
Part Number	SDM845 SM6150-AC