Intel Core i5-661 vs Intel Core i3-7100E

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CPU comparison with benchmarks


Intel Core i5-661 CPU1 vs CPU2 Intel Core i3-7100E
Intel Core i5-661 Intel Core i3-7100E

CPU comparison

Intel Core i5-661 or Intel Core i3-7100E - 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 Core i5-661 has 2 cores with 4 threads and clocks with a maximum frequency of 3.60 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core i5-661 was released in Q1/2010.

The Intel Core i3-7100E has 2 cores with 4 threads and clocks with a maximum frequency of 2.90 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i3-7100E was released in Q1/2017.
Intel Core i5 (331) Family Intel Core i3 (205)
Intel Core i5 600 (6) CPU group Intel Core i 7000U (18)
1 Generation 7
Clarkdale Architecture Kaby Lake U
Desktop / Server Segment Mobile
-- Predecessor Intel Core i3-6100E
-- Successor --

CPU Cores and Base Frequency

The Intel Core i5-661 has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i5-661 is 3.33 GHz (3.60 GHz) while the Intel Core i3-7100E has 2 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Core i3-7100E is at 2.90 GHz.
Intel Core i5-661 Characteristic Intel Core i3-7100E
2 Cores 2
4 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
3.33 GHz Frequency 2.90 GHz
3.60 GHz Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

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.
Intel Core i5-661 Characteristic Intel Core i3-7100E
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Core i5-661 or Intel Core i3-7100E has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
Intel HD Graphics (Westmere) GPU Intel HD Graphics 630
0.50 GHz GPU frequency 0.35 GHz
0.90 GHz GPU (Turbo) 0.95 GHz
5 GPU Generation 9.5
32 nm Technology 14 nm
2 Max. displays 3
12 Compute units 24
24 Shader 192
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory 64 GB
10.1 DirectX Version 12

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.
Intel HD Graphics (Westmere) GPU Intel HD Graphics 630
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 No
Decode Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core i5-661 can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The Intel Core i3-7100E supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s.
Intel Core i5-661 Characteristic Intel Core i3-7100E
DDR3-1066, DDR3-1333 Memory DDR4-2400
16 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 38.4 GB/s
No ECC Yes
0.50 MB L2 Cache --
4.00 MB L3 Cache 3.00 MB
2.0 PCIe version 3.0
16 PCIe lanes 16
8.0 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Core i5-661 is 73 W, while the Intel Core i3-7100E has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Core i5-661 Characteristic Intel Core i3-7100E
73 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 100 °C

Technical details

The Intel Core i5-661 is manufactured in 32 nm and has 4.50 MB cache. The Intel Core i3-7100E is manufactured in 14 nm and has a 3.00 MB cache.
Intel Core i5-661 Characteristic Intel Core i3-7100E
32 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2
LGA 1156 Socket BGA 1440
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2010 Release date Q1/2017
177 $ Release price 225 $
show more data show more data


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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 Core i5-661 Intel Core i5-661
Intel HD Graphics (Westmere) @ 0.90 GHz
43 (12%)
Intel Core i3-7100E Intel Core i3-7100E
Intel HD Graphics 630 @ 0.95 GHz
365 (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 Core i5-661 Intel Core i5-661
2C 4T @ 3.60 GHz
597 (100%)
Intel Core i3-7100E Intel Core i3-7100E
2C 4T @ 2.90 GHz
0 (0%)

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 Core i5-661 Intel Core i5-661
2C 4T @ 3.33 GHz
1308 (100%)
Intel Core i3-7100E Intel Core i3-7100E
2C 4T @ 2.90 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.
Intel Core i5-661 Intel Core i5-661
2C 4T @ 3.33 GHz
2359 (100%)
Intel Core i3-7100E Intel Core i3-7100E
2C 4T @ 2.90 GHz
0 (0%)

Devices using this processor
Intel Core i5-661 Intel Core i3-7100E
Unknown Unknown

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