AMD Phenom II X4 850 vs AMD A4-4000

Last updated: 2024-04-12

CPU comparison with benchmarks


AMD Phenom II X4 850		AMD A4-4000
CPU comparison AMD Phenom II X4 850 or AMD A4-4000 - 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 Phenom II X4 850 has 4 cores with 4 threads and clocks with a maximum frequency of 3.30 GHz. Up to GB of memory is supported in 2 memory channels. The AMD Phenom II X4 850 was released in Q2/2011. The AMD A4-4000 has 2 cores with 2 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD A4-4000 was released in Q2/2013.

AMD Phenom II (52)	Family	AMD A (112)
AMD Phenom II - 840/850 (2)	CPU group	AMD A4-4000 (2)
5	Generation	2
Propus	Architecture	Richland (Piledriver)
Desktop	Segment	Desktop
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The AMD Phenom II X4 850 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD Phenom II X4 850 is 3.30 GHz while the AMD A4-4000 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD A4-4000 is at 3.00 GHz (3.20 GHz).
AMD Phenom II X4 850	Characteristic	AMD A4-4000
4	Cores	2
4	Threads	2
normal	Core architecture	normal
No	Hyperthreading	No
Yes	Overclocking ?	No
3.30 GHz	Frequency	3.00 GHz
--	Turbo Frequency (1 Core)	3.20 GHz
--	Turbo Frequency (All Cores)	3.20 GHz


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 X4 850	Characteristic	AMD A4-4000
--	AI hardware	--
--	AI specifications	--
--	NPU + CPU + iGPU	--

Integrated graphics (iGPU) The AMD Phenom II X4 850 or AMD A4-4000 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
no iGPU	GPU	AMD Radeon HD 7480D
	GPU frequency	0.72 GHz
--	GPU (Turbo)	--
--	GPU Generation	4
	Technology	32 nm
	Max. displays	2
--	Compute units	2
--	Shader	128
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	2 GB
--	DirectX Version	11

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 HD 7480D
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 Phenom II X4 850 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The AMD A4-4000 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.
AMD Phenom II X4 850	Characteristic	AMD A4-4000
DDR3-1333, DDR2-1066	Memory	DDR3-1333
	Max. Memory
2 (Dual Channel)	Memory channels	2 (Dual Channel)
21.3 GB/s	Max. Bandwidth	21.3 GB/s
No	ECC	No
--	L2 Cache	--
2.00 MB	L3 Cache	1.00 MB
--	PCIe version	--
--	PCIe lanes	--
--	PCIe Bandwidth	--
Thermal Management The thermal design power (TDP for short) of the AMD Phenom II X4 850 is 95 W, while the AMD A4-4000 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD Phenom II X4 850	Characteristic	AMD A4-4000
95 W	TDP (PL1 / PBP)	65 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
--	Tjunction max.	--
Technical details The AMD Phenom II X4 850 is manufactured in 45 nm and has 2.00 MB cache. The AMD A4-4000 is manufactured in 32 nm and has a 1.00 MB cache.

AMD Phenom II X4 850	Characteristic	AMD A4-4000
45 nm	Technology	32 nm
Unknown	Chip design	Unknown
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE3, SSE4a	ISA extensions	SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
AM3	Socket	FM2
AMD-V	Virtualization	AMD-V
No	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 10, Linux
Q2/2011	Release date	Q2/2013
--	Release price	32 $

show more data		show more data

AMD Phenom II X4 850 4C 4T @ 3.30 GHz buy now on Amazon and save! AMD A4-4000 2C 2T @ 3.00 GHz (3.20 GHz) buy now on Amazon and save!

Rate these processors

Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks

AMD Phenom II X4 850 (100%)

AMD A4-4000 (81%)

⌀ Multi core performance in 3 CPU benchmarks

AMD Phenom II X4 850 (100%)

AMD A4-4000 (47%)

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 Phenom II X4 850 4C 4T @ 3.30 GHz	421 (100%)
	AMD A4-4000 2C 2T @ 3.20 GHz	348 (83%)

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 Phenom II X4 850 4C 4T @ 3.30 GHz	1507 (100%)
	AMD A4-4000 2C 2T @ 3.20 GHz	499 (33%)

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 X4 850 4C 4T @ 3.30 GHz	2502 (100%)
	AMD A4-4000 2C 2T @ 3.20 GHz	1831 (73%)

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 X4 850 4C 4T @ 3.30 GHz	87 (100%)
	AMD A4-4000 2C 2T @ 3.20 GHz	69 (79%)

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 X4 850 4C 4T @ 3.30 GHz	334 (100%)
	AMD A4-4000 2C 2T @ 3.20 GHz	116 (35%)

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 X4 850 @ 0.00 GHz	0 (0%)
	AMD A4-4000 AMD Radeon HD 7480D @ 0.72 GHz	184 (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 Phenom II X4 850 4C 4T @ 3.30 GHz	0 (0%)
	AMD A4-4000 2C 2T @ 3.00 GHz	293 (100%)

Devices using this processor
AMD Phenom II X4 850	AMD A4-4000
Unknown	Unknown

Popular comparisons containing this CPUs


1.		AMD A4-4000 vs Intel Core i3-3220
2.		AMD A4-4000 vs AMD A4-6300
3.		AMD Athlon II X2 340 vs AMD A4-4000
4.		AMD A6-6400K vs AMD A4-4000
5.		AMD A4-4000 vs AMD A8-5600K
6.		Intel Pentium G3220 vs AMD A4-4000
7.		Intel Core i3-4130 vs AMD A4-4000
8.		Intel Celeron G1820 vs AMD A4-4000
9.		AMD A4-4000 vs AMD Sempron 3850
10.		AMD A4-4000 vs Intel Core i3-4150