AMD Athlon II X4 651K vs Intel Pentium J6426 Benchmark, comparison and differences


AMD Athlon II X4 651K		Intel Pentium J6426
CPU comparison In this CPU comparison, we compare the AMD Athlon II X4 651K and the Intel Pentium J6426 and use benchmarks to check which processor is faster. We compare the AMD Athlon II X4 651K 4 core processor released in Q4/2011 with the Intel Pentium J6426 which has 4 CPU cores and was introduced in Q1/2021.

AMD Athlon II (52)	Family	Intel Pentium (150)
AMD Athlon II X4 (Llano) (5)	CPU group	Intel Pentium N6200/J6400/N6400 (3)
2	Generation	11
Llano	Architecture	Elkhart Lake
Desktop / Server	Segment	Mobile
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The AMD Athlon II X4 651K is a 4 core processor with a clock frequency of 3.00 GHz. The processor can compute 4 threads at the same time. The Intel Pentium J6426 clocks with 2.00 GHz (3.00 GHz), has 4 CPU cores and can calculate 4 threads in parallel.
AMD Athlon II X4 651K	Characteristic	Intel Pentium J6426
4	Cores	4
4	Threads	4
normal	Core architecture	normal
No	Hyperthreading	No
Yes	Overclocking ?	No
3.00 GHz	Frequency	2.00 GHz
--	Turbo Frequency (1 Core)	3.00 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 651K	Characteristic	Intel Pentium J6426
--	AI hardware	--
--	AI specifications	--

Internal Graphics 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	Intel UHD Graphics 32 EUs (Elkhart Lake)
	GPU frequency	0.40 GHz
--	GPU (Turbo)	0.85 GHz
--	GPU Generation	11
	Technology	10 nm
	Max. displays	3
--	Compute units	32
--	Shader	256
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	8 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	Intel UHD Graphics 32 EUs (Elkhart 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 / Encode
No	Codec AV1	Decode
No	Codec AVC	Decode / Encode
No	Codec VC-1	Decode
No	Codec JPEG	Decode / Encode

Memory & PCIe Up to 16 GB of memory in a maximum of 2 memory channels is supported by the AMD Athlon II X4 651K, while the Intel Pentium J6426 supports a maximum of 32 GB of memory with a maximum memory bandwidth of 102.4 GB/s enabled.
AMD Athlon II X4 651K	Characteristic	Intel Pentium J6426
DDR3-1333	Memory	LPDDR4X-3200, LPDDR4-3200, DDR4-3200
16 GB	Max. Memory	32 GB
2 (Dual Channel)	Memory channels	4 (Quad Channel)
21.3 GB/s	Max. Bandwidth	102.4 GB/s
No	ECC	No
4.00 MB	L2 Cache	1.50 MB
--	L3 Cache	--
2.0	PCIe version	3.0
--	PCIe lanes	8
--	PCIe Bandwidth	7.9 GB/s
Thermal Management The AMD Athlon II X4 651K has a TDP of 100 W. The TDP of the Intel Pentium J6426 is 10 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
AMD Athlon II X4 651K	Characteristic	Intel Pentium J6426
100 W	TDP (PL1 / PBP)	10 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
--	Tjunction max.	105 °C
Technical details The AMD Athlon II X4 651K has 4.00 MB cache and is manufactured in 32 nm. The cache of Intel Pentium J6426 is at 1.50 MB. The processor is manufactured in 10 nm.
AMD Athlon II X4 651K	Characteristic	Intel Pentium J6426
32 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
FM1	Socket	BGA 1493
AMD-V	Virtualization	VT-x, VT-x EPT, VT-d
No	AES-NI	Yes
Windows 10, Linux	Operating systems
Q4/2011	Release date	Q1/2021
--	Release price	--

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AMD Athlon II X4 651K 4C 4T @ 3.00 GHz buy now on Amazon and save! Intel Pentium J6426 4C 4T @ 2.00 GHz (3.00 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks

AMD Athlon II X4 651K (62%)

Intel Pentium J6426 (100%)

⌀ Multi core performance in 2 CPU benchmarks

AMD Athlon II X4 651K (68%)

Intel Pentium J6426 (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 651K 4C 4T @ 3.00 GHz	411 (62%)
	Intel Pentium J6426 4C 4T @ 3.00 GHz	665 (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 651K 4C 4T @ 3.00 GHz	1467 (78%)
	Intel Pentium J6426 4C 4T @ 2.00 GHz	1880 (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 651K 4C 4T @ 3.00 GHz	2349 (57%)
	Intel Pentium J6426 4C 4T @ 2.00 GHz	4150 (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 651K 4C 4T @ 3.00 GHz	0 (0%)
	Intel Pentium J6426 4C 4T @ 3.00 GHz	525 (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 651K 4C 4T @ 3.00 GHz	0 (0%)
	Intel Pentium J6426 4C 4T @ 2.00 GHz	1245 (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 651K @ 0.00 GHz	0 (0%)
	Intel Pentium J6426 Intel UHD Graphics 32 EUs (Elkhart Lake) @ 0.85 GHz	456 (100%)


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AMD Athlon II X4 651K vs Intel Pentium J6426

CPU comparison with benchmarks

CPU comparison

CPU Cores and Base Frequency

Artificial Intelligence and Machine Learning

Internal Graphics

Hardware codec support

Memory & PCIe

Thermal Management

Technical details