AMD Phenom II X2 521 vs AMD Ryzen 3 7440U Benchmark, comparison and differences


AMD Phenom II X2 521		AMD Ryzen 3 7440U
CPU comparison In this CPU comparison, we compare the AMD Phenom II X2 521 and the AMD Ryzen 3 7440U and use benchmarks to check which processor is faster. We compare the AMD Phenom II X2 521 2 core processor released in Q2/2011 with the AMD Ryzen 3 7440U which has 4 CPU cores and was introduced in Q3/2023.

AMD Phenom II (52)	Family	AMD Ryzen 3 (33)
AMD Phenom II - 500 (2)	CPU group	AMD Ryzen 7040 (21)
1	Generation	6
Regor (K10)	Architecture	Phoenix (Zen 4)
Desktop / Server	Segment	Mobile
--	Predecessor	--
--	Successor	AMD Ryzen 3 8440U

CPU Cores and Base Frequency The AMD Phenom II X2 521 is a 2 core processor with a clock frequency of 3.50 GHz. The processor can compute 2 threads at the same time. The AMD Ryzen 3 7440U clocks with 3.00 GHz (4.70 GHz), has 4 CPU cores and can calculate 8 threads in parallel.
AMD Phenom II X2 521	Characteristic	AMD Ryzen 3 7440U
2	Cores	4
2	Threads	8
normal	Core architecture	hybrid (big.LITTLE)
No	Hyperthreading	Yes
Yes	Overclocking ?	No
3.50 GHz	A-Core	3.00 GHz (4.70 GHz) 1x Zen 4
--	B-Core	3.00 GHz (4.20 GHz) 3x Zen 4c

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 Phenom II X2 521	Characteristic	AMD Ryzen 3 7440U
--	AI hardware	--
--	AI specifications	--
--	NPU + CPU + iGPU	--

Integrated graphics (iGPU) Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.
no iGPU	GPU	AMD Radeon 740M
	GPU frequency	0.80 GHz
--	GPU (Turbo)	2.50 GHz
--	GPU Generation	10
	Technology	4 nm
	Max. displays	4
--	Compute units	4
--	Shader	256
No	Hardware Raytracing	Yes
No	Frame Generation	AMD FSR
--	Max. GPU Memory	32 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 740M
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
No	Codec VP8	Decode
No	Codec AV1	Decode / Encode
No	Codec AVC	Decode
No	Codec VC-1	Decode
No	Codec JPEG	Decode / Encode

Memory & PCIe Up to GB of memory in a maximum of 2 memory channels is supported by the AMD Phenom II X2 521, while the AMD Ryzen 3 7440U supports a maximum of 256 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled.
AMD Phenom II X2 521	Characteristic	AMD Ryzen 3 7440U
DDR3-1333, DDR2-1066	Memory	DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
	Max. Memory	256 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
21.3 GB/s	Max. Bandwidth	120.0 GB/s
No	ECC	Yes
--	L2 Cache	4.00 MB
2.00 MB	L3 Cache	8.00 MB
--	PCIe version	4.0
--	PCIe lanes	20
--	PCIe Bandwidth	39.4 GB/s
Thermal Management The AMD Phenom II X2 521 has a TDP of 65 W. The TDP of the AMD Ryzen 3 7440U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
AMD Phenom II X2 521	Characteristic	AMD Ryzen 3 7440U
65 W	TDP (PL1 / PBP)	15 W
--	TDP (PL2)	--
--	TDP up	30 W
--	TDP down	--
--	Tjunction max.	100 °C
Technical details The AMD Phenom II X2 521 has 2.00 MB cache and is manufactured in 45 nm. The cache of AMD Ryzen 3 7440U is at 12.00 MB. The processor is manufactured in 4 nm.
AMD Phenom II X2 521	Characteristic	AMD Ryzen 3 7440U
45 nm	Technology	4 nm
Unknown	Chip design	Monolithic
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE3, SSE4a	ISA extensions	SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
AM3	Socket	FP8
AMD-V	Virtualization	AMD-V, SVM
No	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 10, Windows 11, Linux
Q2/2011	Release date	Q3/2023
35 $	Release price	--

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AMD Phenom II X2 521 2C 2T @ 3.50 GHz buy now on Amazon and save! AMD Ryzen 3 7440U 4C 8T @ 3.00 GHz (4.70 GHz) buy now on Amazon and save!

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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 Phenom II X2 521 2C 2T @ 3.50 GHz	0 (0%)
	AMD Ryzen 3 7440U 4C 8T @ 4.70 GHz	2323 (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 Phenom II X2 521 2C 2T @ 3.50 GHz	0 (0%)
	AMD Ryzen 3 7440U 4C 8T @ 4.00 GHz	6571 (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 Phenom II X2 521 @ 0.00 GHz	0 (0%)
	AMD Ryzen 3 7440U AMD Radeon 740M @ 2.50 GHz	1280 (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 Phenom II X2 521 2C 2T @ 3.50 GHz	2253 (100%)
	AMD Ryzen 3 7440U 4C 8T @ 4.00 GHz	0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 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 Phenom II X2 521 2C 2T @ 3.50 GHz	92 (100%)
	AMD Ryzen 3 7440U 4C 8T @ 4.70 GHz	0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 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 Phenom II X2 521 2C 2T @ 3.50 GHz	177 (100%)
	AMD Ryzen 3 7440U 4C 8T @ 4.00 GHz	0 (0%)


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AMD Phenom II X2 521 vs AMD Ryzen 3 7440U

CPU comparison with benchmarks

CPU comparison

CPU Cores and Base Frequency

NPU AI performance

Integrated graphics (iGPU)

Hardware codec support

Memory & PCIe

Thermal Management

Technical details