Qualcomm Snapdragon 678 vs Intel Core i7-6785R

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CPU comparison with benchmarks


Qualcomm Snapdragon 678 CPU1 vs CPU2 Intel Core i7-6785R
Qualcomm Snapdragon 678 Intel Core i7-6785R

CPU comparison

Qualcomm Snapdragon 678 or Intel Core i7-6785R - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Qualcomm Snapdragon 678 has 8 cores with 8 threads and clocks with a maximum frequency of 2.20 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 678 was released in Q4/2020.

The Intel Core i7-6785R has 4 cores with 8 threads and clocks with a maximum frequency of 3.90 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i7-6785R was released in Q2/2016.
Qualcomm Snapdragon (104) Family Intel Core i7 (298)
Qualcomm Snapdragon 675/678 (2) CPU group Intel Core i 6000 (24)
7 Generation 6
Kryo 460 Architecture Skylake S
Mobile Segment Desktop / Server
Qualcomm Snapdragon 675 Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 678 is a 8 core processor with a clock frequency of 2.20 GHz. The Intel Core i7-6785R has 4 CPU cores with a clock frequency of 3.30 GHz (3.90 GHz).

Qualcomm Snapdragon 678 Characteristic Intel Core i7-6785R
8 Cores 4
8 Threads 8
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
2.20 GHz
2x Kryo 460 Gold
A-Core 3.30 GHz (3.90 GHz)
1.70 GHz
6x Kryp 460 Silver
B-Core --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Qualcomm Snapdragon 678 Characteristic Intel Core i7-6785R
Qualcomm AI engine AI hardware --
Hexagon 685 @ 3 TOPS AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

Qualcomm Adreno 612 GPU Intel Iris Pro Graphics 580
0.85 GHz GPU frequency 0.35 GHz
0.85 GHz GPU (Turbo) 1.15 GHz
6 GPU Generation 9
11 nm Technology 14 nm
0 Max. displays 3
-- Compute units 72
-- Shader 576
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 GB
12.1 DirectX Version 12.0

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Qualcomm Adreno 612 GPU Intel Iris Pro Graphics 580
Decode Codec h265 / HEVC (8 bit) Decode / Encode
Decode Codec h265 / HEVC (10 bit) Decode
Decode / Encode Codec h264 Decode / Encode
Decode Codec VP9 Decode
Decode Codec VP8 Decode / Encode
No Codec AV1 No
Decode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The Qualcomm Snapdragon 678 supports a maximum of 8 GB of memory in 2 memory channels. The Intel Core i7-6785R can connect up to 64 GB of memory in 2 memory channels.

Qualcomm Snapdragon 678 Characteristic Intel Core i7-6785R
LPDDR4X-3733 Memory DDR4-2133
8 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
14.9 GB/s Max. Bandwidth 34.1 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache 8.00 MB
-- PCIe version 3.0
-- PCIe lanes 20
-- PCIe Bandwidth 19.7 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Qualcomm Snapdragon 678 has a TDP of --, that of the Intel Core i7-6785R is 65 W.

Qualcomm Snapdragon 678 Characteristic Intel Core i7-6785R
-- TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Qualcomm Snapdragon 678 has a 0.00 MB cache, while the Intel Core i7-6785R cache has a total of 8.00 MB.

Qualcomm Snapdragon 678 Characteristic Intel Core i7-6785R
11 nm Technology 14 nm
Chiplet Chip design Monolithic
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4.1, SSE4.2, AVX2
-- Socket BGA 1440
None Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Android Operating systems Windows 10, Linux
Q4/2020 Release date Q2/2016
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Qualcomm Snapdragon 678 (53%)
Intel Core i7-6785R (100%)
⌀ Multi core performance in 1 CPU benchmarks
Qualcomm Snapdragon 678 (43%)
Intel Core i7-6785R (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
534 (53%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.90 GHz
1004 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
1553 (43%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.50 GHz
3615 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
694 (100%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.90 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
1489 (100%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.50 GHz
0 (0%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
Qualcomm Adreno 612 @ 0.85 GHz
0 (0%)
Intel Core i7-6785R Intel Core i7-6785R
Intel Iris Pro Graphics 580 @ 1.15 GHz
1325 (100%)

AnTuTu 8 Benchmark

The AnTuTu 8 Benchmark measures the performance of a SoC. AnTuTu benchmarks the CPU, GPU, Memory as well as the UX (User Experience) by simulating browser and app usage. AnTuTu can benchmark any ARM CPU that runs under Android or iOS. Devices may not be directly compareable if the benchmark has been performed under different operating systems.

In the AnTuTu 8 benchmark, the single-core performance of a processor is only slightly weighted. The evaluation consists of the multi-core performance of the processor, the speed of the RAM and the performance of the internal graphics.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
224586 (100%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.30 GHz
0 (0%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
0 (0%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.50 GHz
7185 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
0 (0%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.90 GHz
166 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
0 (0%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.50 GHz
764 (100%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
Qualcomm Snapdragon 678 Qualcomm Snapdragon 678
8C 8T @ 2.20 GHz
3 (100%)
Intel Core i7-6785R Intel Core i7-6785R
4C 8T @ 3.30 GHz
0 (0%)

Devices using this processor

Qualcomm Snapdragon 678 Intel Core i7-6785R
Xiaomi Redmi Note 10
Motorola Moto G Stylus 2021
Unknown

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