AMD Athlon II X4 645 vs Intel Core i5-1240P

Last updated: 2023-09-12

CPU comparison with benchmarks


AMD Athlon II X4 645		Intel Core i5-1240P
CPU comparison AMD Athlon II X4 645 or Intel Core i5-1240P - 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 i5-1240P has 12 cores with 16 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 i5-1240P was released in Q1/2022.

AMD Athlon II (52)	Family	Intel Core i5 (331)
AMD Athlon II X4 (Propus) (10)	CPU group	Intel Core i 1200P/1200U (21)
1	Generation	12
Propus	Architecture	Alder Lake U
Desktop / Server	Segment	Mobile
--	Predecessor	--
--	Successor	Intel Core i5-1340P

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 i5-1240P has 12 CPU cores with a clock frequency of 1.70 GHz (4.40 GHz).
AMD Athlon II X4 645	Characteristic	Intel Core i5-1240P
4	Cores	12
4	Threads	16
normal	Core architecture	hybrid (big.LITTLE)
No	Hyperthreading	Yes
No	Overclocking ?	No
3.10 GHz	A-Core	1.70 GHz (4.40 GHz) 4x Golden Cove
--	B-Core	1.20 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 X4 645	Characteristic	Intel Core i5-1240P
--	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	0.40 GHz
--	GPU (Turbo)	1.30 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 X4 645 supports a maximum of 16 GB of memory in 2 memory channels. The Intel Core i5-1240P can connect up to 64 GB of memory in 2 memory channels.
AMD Athlon II X4 645	Characteristic	Intel Core i5-1240P
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
2.00 MB	L2 Cache	9.00 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 X4 645 has a TDP of 95 W, that of the Intel Core i5-1240P is 28 W.
AMD Athlon II X4 645	Characteristic	Intel Core i5-1240P
95 W	TDP (PL1 / PBP)	28 W
--	TDP (PL2)	64 W
--	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 i5-1240P cache has a total of 21.00 MB.
AMD Athlon II X4 645	Characteristic	Intel Core i5-1240P
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

AMD Athlon II X4 645 4C 4T @ 3.10 GHz buy now on Amazon and save! Intel Core i5-1240P 12C 16T @ 1.70 GHz (4.40 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks

AMD Athlon II X4 645 (25%)

Intel Core i5-1240P (100%)

⌀ Multi core performance in 3 CPU benchmarks

AMD Athlon II X4 645 (14%)

Intel Core i5-1240P (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 4C 4T @ 3.10 GHz	402 (24%)
	Intel Core i5-1240P 12C 16T @ 4.40 GHz	1688 (100%)

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 4C 4T @ 3.10 GHz	1520 (13%)
	Intel Core i5-1240P 12C 16T @ 2.70 GHz	11268 (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 4C 4T @ 3.10 GHz	399 (26%)
	Intel Core i5-1240P 12C 16T @ 4.40 GHz	1564 (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 4C 4T @ 3.10 GHz	1374 (16%)
	Intel Core i5-1240P 12C 16T @ 2.70 GHz	8550 (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 4C 4T @ 3.10 GHz	2274 (13%)
	Intel Core i5-1240P 12C 16T @ 2.70 GHz	17451 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.


	AMD Athlon II X4 645 4C 4T @ 3.10 GHz	0 (0%)
	Intel Core i5-1240P 12C 16T @ 4.40 GHz	98 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.


	AMD Athlon II X4 645 4C 4T @ 3.10 GHz	0 (0%)
	Intel Core i5-1240P 12C 16T @ 4.40 GHz	630 (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 645 4C 4T @ 3.10 GHz	0 (0%)
	Intel Core i5-1240P 12C 16T @ 4.40 GHz	2102 (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 645 4C 4T @ 3.10 GHz	0 (0%)
	Intel Core i5-1240P 12C 16T @ 2.70 GHz	7577 (100%)

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 4C 4T @ 3.10 GHz	157 (100%)
	Intel Core i5-1240P 12C 16T @ 4.40 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 4C 4T @ 3.10 GHz	601 (100%)
	Intel Core i5-1240P 12C 16T @ 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 @ 0.00 GHz	0 (0%)
	Intel Core i5-1240P Intel Iris Xe Graphics 80 (Alder Lake) @ 1.30 GHz	1611 (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 4C 4T @ 3.10 GHz	575 (100%)
	Intel Core i5-1240P 12C 16T @ 1.70 GHz	0 (0%)

Devices using this processor
AMD Athlon II X4 645	Intel Core i5-1240P
Unknown	Unknown

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