AMD Athlon II X4 638 vs Intel Core i5-3340M

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CPU comparison with benchmarks


AMD Athlon II X4 638 CPU1 vs CPU2 Intel Core i5-3340M
AMD Athlon II X4 638 Intel Core i5-3340M

CPU comparison

AMD Athlon II X4 638 or Intel Core i5-3340M - 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 638 has 4 cores with 4 threads and clocks with a maximum frequency of 2.70 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X4 638 was released in Q1/2012.

The Intel Core i5-3340M has 2 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i5-3340M was released in Q1/2013.
AMD Athlon II (52) Family Intel Core i5 (331)
AMD Athlon II X4 (Llano) (5) CPU group Intel Core i 3000M (29)
2 Generation 3
Llano Architecture Ivy Bridge H
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor Intel Core i5-4340M

CPU Cores and Base Frequency

The AMD Athlon II X4 638 is a 4 core processor with a clock frequency of 2.70 GHz. The Intel Core i5-3340M has 2 CPU cores with a clock frequency of 2.70 GHz (3.40 GHz).

AMD Athlon II X4 638 Characteristic Intel Core i5-3340M
4 Cores 2
4 Threads 4
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
2.70 GHz Frequency 2.70 GHz
-- Turbo Frequency (1 Core) 3.40 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 638 Characteristic Intel Core i5-3340M
-- 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 4000
GPU frequency 0.65 GHz
-- GPU (Turbo) 1.25 GHz
-- GPU Generation 7
Technology 22 nm
Max. displays 3
-- Compute units 16
-- Shader 128
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- DirectX Version 11.0

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.

no iGPU GPU Intel HD Graphics 4000
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 638 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i5-3340M can connect up to 32 GB of memory in 2 memory channels.

AMD Athlon II X4 638 Characteristic Intel Core i5-3340M
DDR3-1333 Memory DDR3-1600
16 GB Max. Memory 32 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 25.6 GB/s
No ECC No
4.00 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 638 has a TDP of 65 W, that of the Intel Core i5-3340M is 35 W.

AMD Athlon II X4 638 Characteristic Intel Core i5-3340M
65 W TDP (PL1 / PBP) 35 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 105 °C

Technical details

The AMD Athlon II X4 638 has a 4.00 MB cache, while the Intel Core i5-3340M cache has a total of 3.00 MB.

AMD Athlon II X4 638 Characteristic Intel Core i5-3340M
32 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, AVX
FM1 Socket BGA 1023
AMD-V Virtualization VT-x, VT-x EPT
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2012 Release date Q1/2013
-- Release price 227 $
show more data show more data


Rate these processors

Here you can rate the AMD Athlon II X4 638 to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:
Here you can rate the Intel Core i5-3340M to help other visitors make their purchasing decisions. The average rating is 4.5 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD Athlon II X4 638 (52%)
Intel Core i5-3340M (100%)
⌀ Multi core performance in 2 CPU benchmarks
AMD Athlon II X4 638 (87%)
Intel Core i5-3340M (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 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
374 (52%)
Intel Core i5-3340M Intel Core i5-3340M
2C 4T @ 3.40 GHz
716 (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 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
1326 (89%)
Intel Core i5-3340M Intel Core i5-3340M
2C 4T @ 2.70 GHz
1497 (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 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
2248 (84%)
Intel Core i5-3340M Intel Core i5-3340M
2C 4T @ 2.70 GHz
2680 (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.
AMD Athlon II X4 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
0 (0%)
Intel Core i5-3340M Intel Core i5-3340M
2C 4T @ 3.40 GHz
604 (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.
AMD Athlon II X4 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
0 (0%)
Intel Core i5-3340M Intel Core i5-3340M
2C 4T @ 2.70 GHz
1220 (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.
AMD Athlon II X4 638 AMD Athlon II X4 638
@ 0.00 GHz
0 (0%)
Intel Core i5-3340M Intel Core i5-3340M
Intel HD Graphics 4000 @ 1.25 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 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
0 (0%)
Intel Core i5-3340M Intel Core i5-3340M
2C 4T @ 2.70 GHz
785 (100%)

Devices using this processor

AMD Athlon II X4 638 Intel Core i5-3340M
Unknown Unknown

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