AMD Athlon II X4 638 vs AMD E2-7015

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CPU comparison with benchmarks


AMD Athlon II X4 638 CPU1 vs CPU2 AMD E2-7015
AMD Athlon II X4 638 AMD E2-7015

CPU comparison

AMD Athlon II X4 638 or AMD E2-7015 - 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 AMD E2-7015 has 2 cores with 2 threads and clocks with a maximum frequency of 1.50 GHz. The CPU supports up to GB of memory in 1 memory channels. The AMD E2-7015 was released in .
AMD Athlon II (52) Family AMD E (23)
AMD Athlon II X4 (Llano) (5) CPU group Unknown M (4)
2 Generation 0
Llano Architecture Unknown
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

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 AMD E2-7015 has 2 CPU cores with a clock frequency of 1.50 GHz.

AMD Athlon II X4 638 Characteristic AMD E2-7015
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
2.70 GHz Frequency 1.50 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.

AMD Athlon II X4 638 Characteristic AMD E2-7015
-- AI hardware --
-- 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.

no iGPU GPU AMD Radeon R2 (Beema)
GPU frequency 0.35 GHz
-- GPU (Turbo) --
-- GPU Generation 6
Technology 28 nm
Max. displays 2
-- Compute units 2
-- Shader 128
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- 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.

no iGPU GPU AMD Radeon R2 (Beema)
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The AMD Athlon II X4 638 supports a maximum of 16 GB of memory in 2 memory channels. The AMD E2-7015 can connect up to GB of memory in 1 memory channels.

AMD Athlon II X4 638 Characteristic AMD E2-7015
DDR3-1333 Memory DDR3-1333
16 GB Max. Memory
2 (Dual Channel) Memory channels 1 (Single Channel)
21.3 GB/s Max. Bandwidth --
No ECC No
4.00 MB L2 Cache 1.00 MB
-- L3 Cache --
2.0 PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

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 AMD E2-7015 is 10 W.

AMD Athlon II X4 638 Characteristic AMD E2-7015
65 W TDP (PL1 / PBP) 10 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD Athlon II X4 638 has a 4.00 MB cache, while the AMD E2-7015 cache has a total of 1.00 MB.

AMD Athlon II X4 638 Characteristic AMD E2-7015
32 nm Technology
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, 3DNow!, SSE3, SSE4a ISA extensions Unknown
FM1 Socket FP4
AMD-V Virtualization Unknown
No AES-NI No
Windows 10, Linux Operating systems
Q1/2012 Release date
-- Release price --
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 AMD E2-7015 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:


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 (100%)
AMD E2-7015 AMD E2-7015
2C 2T @ 1.50 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.
AMD Athlon II X4 638 AMD Athlon II X4 638
4C 4T @ 2.70 GHz
1326 (100%)
AMD E2-7015 AMD E2-7015
2C 2T @ 1.50 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.
AMD Athlon II X4 638 AMD Athlon II X4 638
@ 0.00 GHz
0 (0%)
AMD E2-7015 AMD E2-7015
AMD Radeon R2 (Beema) @ 0.35 GHz
90 (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 (100%)
AMD E2-7015 AMD E2-7015
2C 2T @ 1.50 GHz
0 (0%)

Devices using this processor

AMD Athlon II X4 638 AMD E2-7015
Unknown Unknown

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