Intel Core2 Duo E8400 vs Qualcomm Snapdragon 665

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CPU comparison with benchmarks


Intel Core2 Duo E8400 CPU1 vs CPU2 Qualcomm Snapdragon 665
Intel Core2 Duo E8400 Qualcomm Snapdragon 665

CPU comparison

Intel Core2 Duo E8400 or Qualcomm Snapdragon 665 - 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 Intel Core2 Duo E8400 has 2 cores with 2 threads and clocks with a maximum frequency of 3.00 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core2 Duo E8400 was released in Q1/2008.

The Qualcomm Snapdragon 665 has 8 cores with 8 threads and clocks with a maximum frequency of 2.00 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Qualcomm Snapdragon 665 was released in Q2/2019.
Intel Core2 Duo (29) Family Qualcomm Snapdragon (102)
Intel Core 2 Duo E7000/E8000 (14) CPU group Qualcomm Snapdragon 662/665 (2)
2 Generation 7
Wolfdale (Penryn) Architecture Kryo 260
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core2 Duo E8400 is a 2 core processor with a clock frequency of 3.00 GHz. The Qualcomm Snapdragon 665 has 8 CPU cores with a clock frequency of 2.00 GHz.

Intel Core2 Duo E8400 Characteristic Qualcomm Snapdragon 665
2 Cores 8
2 Threads 8
normal Core architecture hybrid (big.LITTLE)
No Hyperthreading No
Yes Overclocking ? No
3.00 GHz A-Core 2.00 GHz
4x Kryo 260 Gold
-- B-Core 1.80 GHz
4x Kryo 260 Silver

Artificial Intelligence and Machine Learning

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. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core2 Duo E8400 Characteristic Qualcomm Snapdragon 665
-- AI hardware Qualcomm AI engine
-- AI specifications Hexagon 685 @ 3 TOPS

Internal Graphics

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.

no iGPU GPU Qualcomm Adreno 610
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation 6
Technology 11 nm
Max. displays 0
-- Compute units --
-- Shader 128
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 4 GB
-- DirectX Version 12.1

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.

no iGPU GPU Qualcomm Adreno 610
No Codec h265 / HEVC (8 bit) Decode
No Codec h265 / HEVC (10 bit) Decode
No Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode
No Codec AV1 No
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core2 Duo E8400 supports a maximum of 16 GB of memory in 2 memory channels. The Qualcomm Snapdragon 665 can connect up to 8 GB of memory in 2 memory channels.

Intel Core2 Duo E8400 Characteristic Qualcomm Snapdragon 665
DDR3-1333, DDR2-1066 Memory LPDDR4X-3733, LPDDR3-1866
16 GB Max. Memory 8 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 14.9 GB/s
No ECC No
6.00 MB L2 Cache --
-- L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core2 Duo E8400 has a TDP of 65 W, that of the Qualcomm Snapdragon 665 is --.

Intel Core2 Duo E8400 Characteristic Qualcomm Snapdragon 665
65 W TDP (PL1 / PBP) --
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core2 Duo E8400 has a 6.00 MB cache, while the Qualcomm Snapdragon 665 cache has a total of 0.00 MB.

Intel Core2 Duo E8400 Characteristic Qualcomm Snapdragon 665
45 nm Technology 11 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
MMX, SSE, SSE2, SSE3, SSE 4.1 ISA extensions --
LGA 775 Socket --
VT-x Virtualization None
No AES-NI No
Windows 10, Linux Operating systems Android
Q1/2008 Release date Q2/2019
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core2 Duo E8400 to help other visitors make their purchasing decisions. The average rating is 4.6 stars (11 ratings). Rate now:
Here you can rate the Qualcomm Snapdragon 665 to help other visitors make their purchasing decisions. The average rating is 4.4 stars (8 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core2 Duo E8400 (100%)
Qualcomm Snapdragon 665 (65%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core2 Duo E8400 (54%)
Qualcomm Snapdragon 665 (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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
473 (100%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
306 (65%)

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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
841 (67%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
1254 (100%)

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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
1129 (40%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
2807 (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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
334 (100%)

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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
1170 (100%)

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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
@ 0.00 GHz
0 (0%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
Qualcomm Adreno 610 @ 0.00 GHz
273 (100%)

AnTuTu 9 Benchmark

The AnTuTu 9 benchmark is very well suited to measuring the performance of a smartphone. AnTuTu 9 is quite heavy on 3D graphics and can now also use the "Metal" graphics interface. In AnTuTu, memory and UX (user experience) are also tested by simulating browser and app usage. AnTuTu version 9 can compare any ARM CPU running on Android or iOS. Devices may not be directly comparable when benchmarked on different operating systems.

In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
179655 (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.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
171683 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
252 (100%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
465 (100%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
0 (0%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

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).
Intel Core2 Duo E8400 Intel Core2 Duo E8400
2C 2T @ 3.00 GHz
0 (0%)
Qualcomm Snapdragon 665 Qualcomm Snapdragon 665
8C 8T @ 2.00 GHz
3 (100%)

Devices using this processor

Intel Core2 Duo E8400 Qualcomm Snapdragon 665
Unknown Unknown

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