AMD Athlon II X3 450 vs Intel Core i5-1240U

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CPU comparison with benchmarks


AMD Athlon II X3 450 CPU1 vs CPU2 Intel Core i5-1240U
AMD Athlon II X3 450 Intel Core i5-1240U

CPU comparison

AMD Athlon II X3 450 or Intel Core i5-1240U - 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 X3 450 has 3 cores with 3 threads and clocks with a maximum frequency of 3.20 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X3 450 was released in Q3/2010.

The Intel Core i5-1240U has 10 cores with 12 threads and clocks with a maximum frequency of 4.40 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i5-1240U was released in Q1/2022.
AMD Athlon II (52) Family Intel Core i5 (328)
AMD Athlon II X3 (Rana) (12) CPU group Intel Core i 1200P/1200U (21)
1 Generation 12
Rana Architecture Alder Lake U
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Athlon II X3 450 is a 3 core processor with a clock frequency of 3.20 GHz. The Intel Core i5-1240U has 10 CPU cores with a clock frequency of 1.10 GHz (4.40 GHz).

AMD Athlon II X3 450 Characteristic Intel Core i5-1240U
3 Cores 10
3 Threads 12
normal Core architecture hybrid (big.LITTLE)
No Hyperthreading Yes
No Overclocking ? No
3.20 GHz A-Core 1.10 GHz (4.40 GHz)
2x Golden Cove
-- B-Core 0.80 GHz (3.30 GHz)
8x Gracemont

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 X3 450 Characteristic Intel Core i5-1240U
-- 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 Iris Xe Graphics 80 (Alder Lake)
GPU frequency 0.25 GHz
-- GPU (Turbo) 0.90 GHz
-- GPU Generation 13
Technology 10 nm
Max. displays 4
-- Compute units 80
-- Shader 640
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 32 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 Intel Iris Xe Graphics 80 (Alder Lake)
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode
No Codec AV1 Decode
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The AMD Athlon II X3 450 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i5-1240U can connect up to 64 GB of memory in 2 memory channels.

AMD Athlon II X3 450 Characteristic Intel Core i5-1240U
DDR3-1333 Memory LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200
16 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 83.2 GB/s
No ECC No
1.50 MB L2 Cache 6.50 MB
-- L3 Cache 12.00 MB
2.0 PCIe version 4.0
-- PCIe lanes 28
-- PCIe Bandwidth 55.1 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Athlon II X3 450 has a TDP of 95 W, that of the Intel Core i5-1240U is 9 W.

AMD Athlon II X3 450 Characteristic Intel Core i5-1240U
95 W TDP (PL1 / PBP) 9 W
-- TDP (PL2) 29 W
-- TDP up --
-- TDP down --
-- Tjunction max. 100 °C

Technical details

The AMD Athlon II X3 450 has a 1.50 MB cache, while the Intel Core i5-1240U cache has a total of 18.50 MB.

AMD Athlon II X3 450 Characteristic Intel Core i5-1240U
45 nm Technology 10 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 1744
AMD-V Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q3/2010 Release date Q1/2022
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks

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 X3 450 AMD Athlon II X3 450
3C 3T @ 3.20 GHz
384 (31%)
Intel Core i5-1240U Intel Core i5-1240U
10C 12T @ 4.40 GHz
1227 (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 X3 450 AMD Athlon II X3 450
3C 3T @ 3.20 GHz
980 (20%)
Intel Core i5-1240U Intel Core i5-1240U
10C 12T @ 2.30 GHz
5021 (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 X3 450 AMD Athlon II X3 450
3C 3T @ 3.20 GHz
1819 (21%)
Intel Core i5-1240U Intel Core i5-1240U
10C 12T @ 2.30 GHz
8805 (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 X3 450 AMD Athlon II X3 450
@ 0.00 GHz
0 (0%)
Intel Core i5-1240U Intel Core i5-1240U
Intel Iris Xe Graphics 80 (Alder Lake) @ 0.90 GHz
1115 (100%)

Devices using this processor

AMD Athlon II X3 450 Intel Core i5-1240U
Unknown Unknown

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