AMD Athlon II X4 645 vs Intel Core i5-4400E

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CPU comparison with benchmarks


AMD Athlon II X4 645 CPU1 vs CPU2 Intel Core i5-4400E
AMD Athlon II X4 645 Intel Core i5-4400E

CPU comparison

AMD Athlon II X4 645 or Intel Core i5-4400E - 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 AMD Athlon II X4 645 has 4 cores with 4 threads and clocks with a maximum frequency of 3.10 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X4 645 was released in Q3/2010.

The Intel Core i5-4400E has 2 cores with 4 threads and clocks with a maximum frequency of 3.30 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Core i5-4400E was released in Q3/2013.
AMD Athlon II (52) Family Intel Core i5 (331)
AMD Athlon II X4 (Propus) (10) CPU group Intel Core i 4000 (64)
1 Generation 4
Propus Architecture Haswell S
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Athlon II X4 645 is a 4 core processor with a clock frequency of 3.10 GHz. The Intel Core i5-4400E has 2 CPU cores with a clock frequency of 2.70 GHz (3.30 GHz).

AMD Athlon II X4 645 Characteristic Intel Core i5-4400E
4 Cores 2
4 Threads 4
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
3.10 GHz Frequency 2.70 GHz
-- Turbo Frequency (1 Core) 3.30 GHz
-- Turbo Frequency (All Cores) --

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.

AMD Athlon II X4 645 Characteristic Intel Core i5-4400E
-- AI hardware --
-- AI specifications --

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 Intel HD Graphics 4600
GPU frequency 0.40 GHz
-- GPU (Turbo) 1.00 GHz
-- GPU Generation 7.5
Technology 22 nm
Max. displays 3
-- Compute units 20
-- Shader 160
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- DirectX Version 11.1

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 Intel HD Graphics 4600
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

The AMD Athlon II X4 645 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i5-4400E can connect up to 16 GB of memory in 2 memory channels.

AMD Athlon II X4 645 Characteristic Intel Core i5-4400E
DDR3-1333 Memory DDR3-1600
16 GB Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 25.6 GB/s
No ECC Yes
2.00 MB L2 Cache --
-- L3 Cache 3.00 MB
2.0 PCIe version 3.0
-- PCIe lanes 16
-- PCIe Bandwidth 15.8 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Athlon II X4 645 has a TDP of 95 W, that of the Intel Core i5-4400E is 37 W.

AMD Athlon II X4 645 Characteristic Intel Core i5-4400E
95 W TDP (PL1 / PBP) 37 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 100 °C

Technical details

The AMD Athlon II X4 645 has a 2.00 MB cache, while the Intel Core i5-4400E cache has a total of 3.00 MB.

AMD Athlon II X4 645 Characteristic Intel Core i5-4400E
45 nm Technology 22 nm
Unknown Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, 3DNow!, SSE3, SSE4a ISA extensions SSE4.1, SSE4.2, AVX2
AM3 Socket BGA 1364
AMD-V Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2010 Release date Q3/2013
-- Release price 266 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD Athlon II X4 645 (47%)
Intel Core i5-4400E (100%)
⌀ Multi core performance in 2 CPU benchmarks
AMD Athlon II X4 645 (74%)
Intel Core i5-4400E (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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
399 (47%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 3.30 GHz
844 (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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
1374 (78%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 2.70 GHz
1764 (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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
2274 (70%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 2.70 GHz
3250 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
402 (100%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 3.30 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
1520 (100%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 2.70 GHz
0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
157 (100%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 3.30 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
601 (100%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 2.70 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.
AMD Athlon II X4 645 AMD Athlon II X4 645
@ 0.00 GHz
0 (0%)
Intel Core i5-4400E Intel Core i5-4400E
Intel HD Graphics 4600 @ 1.00 GHz
320 (100%)

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.
AMD Athlon II X4 645 AMD Athlon II X4 645
4C 4T @ 3.10 GHz
575 (100%)
Intel Core i5-4400E Intel Core i5-4400E
2C 4T @ 2.70 GHz
0 (0%)

Devices using this processor

AMD Athlon II X4 645 Intel Core i5-4400E
Unknown Unknown

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