AMD Ryzen 9 PRO 3900 vs AMD FX-4300

Last updated: 2024-04-12

CPU comparison with benchmarks


AMD Ryzen 9 PRO 3900		AMD FX-4300
CPU comparison AMD Ryzen 9 PRO 3900 or AMD FX-4300 - 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 Ryzen 9 PRO 3900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.30 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 PRO 3900 was released in Q3/2019. The AMD FX-4300 has 4 cores with 4 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD FX-4300 was released in Q4/2012.

AMD Ryzen 9 PRO (4)	Family	AMD FX (30)
AMD Ryzen 3000 (15)	CPU group	AMD FX-4300 (3)
3	Generation	2
Matisse (Zen 2)	Architecture	Vishera (Bulldozer)
Desktop / Server	Segment	Desktop / Server
--	Predecessor	--
--	Successor	--

CPU Cores and Base Frequency The AMD Ryzen 9 PRO 3900 is a 12 core processor with a clock frequency of 3.10 GHz (4.30 GHz). The AMD FX-4300 has 4 CPU cores with a clock frequency of 3.80 GHz.
AMD Ryzen 9 PRO 3900	Characteristic	AMD FX-4300
12	Cores	4
24	Threads	4
normal	Core architecture	normal
Yes	Hyperthreading	No
Yes	Overclocking ?	Yes
3.10 GHz	Frequency	3.80 GHz
4.30 GHz	Turbo Frequency (1 Core)	--
--	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 Ryzen 9 PRO 3900	Characteristic	AMD FX-4300
--	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	no iGPU
	GPU frequency	--
--	GPU (Turbo)	--
--	GPU Generation	--
	Technology
	Max. displays
--	Compute units	--
--	Shader	--
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	--
--	DirectX Version	--

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	no iGPU
No	Codec h265 / HEVC (8 bit)	No
No	Codec h265 / HEVC (10 bit)	No
No	Codec h264	No
No	Codec VP9	No
No	Codec VP8	No
No	Codec AV1	No
No	Codec AVC	No
No	Codec VC-1	No
No	Codec JPEG	No

Memory & PCIe The AMD Ryzen 9 PRO 3900 supports a maximum of 128 GB of memory in 2 memory channels. The AMD FX-4300 can connect up to GB of memory in 2 memory channels.
AMD Ryzen 9 PRO 3900	Characteristic	AMD FX-4300
DDR4-3200	Memory	DDR3-1866
128 GB	Max. Memory
2 (Dual Channel)	Memory channels	2 (Dual Channel)
51.2 GB/s	Max. Bandwidth	29.9 GB/s
No	ECC	Yes
--	L2 Cache	--
64.00 MB	L3 Cache	4.00 MB
4.0	PCIe version	--
20	PCIe lanes	--
39.4 GB/s	PCIe Bandwidth	--
Thermal Management The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 9 PRO 3900 has a TDP of 65 W, that of the AMD FX-4300 is 95 W.
AMD Ryzen 9 PRO 3900	Characteristic	AMD FX-4300
65 W	TDP (PL1 / PBP)	95 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
95 °C	Tjunction max.	--
Technical details The AMD Ryzen 9 PRO 3900 has a 64.00 MB cache, while the AMD FX-4300 cache has a total of 4.00 MB.
AMD Ryzen 9 PRO 3900	Characteristic	AMD FX-4300
7 nm	Technology	32 nm
Chiplet	Chip design	Unknown
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3	ISA extensions	SSE4.1, SSE4.2, AVX, FMA3, FMA4
AM4 (PGA 1331)	Socket	AM3+
AMD-V, SVM	Virtualization	AMD-V
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems	Windows 10, Linux
Q3/2019	Release date	Q4/2012
485 $	Release price	85 $

show more data		show more data

AMD Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz (4.30 GHz) buy now on Amazon and save! AMD FX-4300 4C 4T @ 3.80 GHz buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks

AMD Ryzen 9 PRO 3900 (100%)

AMD FX-4300 (43%)

⌀ Multi core performance in 2 CPU benchmarks

AMD Ryzen 9 PRO 3900 (100%)

AMD FX-4300 (14%)

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 Ryzen 9 PRO 3900 12C 24T @ 4.30 GHz	1194 (100%)
	AMD FX-4300 4C 4T @ 3.80 GHz	511 (43%)

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 Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz	10974 (100%)
	AMD FX-4300 4C 4T @ 3.80 GHz	1394 (13%)

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 Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz	31440 (100%)
	AMD FX-4300 4C 4T @ 3.80 GHz	4713 (15%)

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 Ryzen 9 PRO 3900 12C 24T @ 4.30 GHz	1688 (100%)
	AMD FX-4300 4C 4T @ 3.80 GHz	0 (0%)

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 Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz	10522 (100%)
	AMD FX-4300 4C 4T @ 3.80 GHz	0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.


	AMD Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz	234 (100%)
	AMD FX-4300 4C 4T @ 3.80 GHz	0 (0%)

CPU-Z Benchmark 17 (Single-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 Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz	0 (0%)
	AMD FX-4300 4C 4T @ 3.80 GHz	224 (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 Ryzen 9 PRO 3900 12C 24T @ 3.10 GHz	0 (0%)
	AMD FX-4300 4C 4T @ 3.80 GHz	739 (100%)

Devices using this processor
AMD Ryzen 9 PRO 3900	AMD FX-4300
Unknown	Unknown

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