AMD Ryzen 9 3950X (3.5 GHz / 4.7 GHz)

Excellent but expensive

Used for 3D rendering and games, the performance is very good, as you can imagine with its 16 cores and 32 threads.

In terms of temperature, either with a Corsair h115i pro or with a Noctua NH-D15S mounted with two fans, the temperatures under load are quite similar, around +55/+60 °C compared to the ambient during rendering (100% all-core).
The AIO allows to gain 2-3 degrees and therefore a few MHz of Precision Boost (~50 to 75 MHz in my case), but the water temperature hardly decreases, expect more noise.

As far as boost is concerned, don't hesitate to activate PBO if the motherboard is solid enough, the performance gain, although slight, is nevertheless real, especially under all-core load.
The theoretical maximum frequencies are however rarely reached (I get 4600, sometimes 4650, but I have only seen 4700 once on a core) in real use, in normal use I get 4500-4550, and all-core 4000-4100 depending on the load.
(it may be that custom water cooling helps to increase this performance)

The direct CPUSSD NVMe link (on most motherboards) is also a bonus in terms of I/O performance.

Provide 3600MHz memory (recommended by AMD, for FCLK/Infinity fabric at 1800Mhz which is the expected stable maximum) with as low CAS as possible to optimise performance, there is a relatively large impact unlike Intel architecture which is less sensitive to it.

Finally, I take one star off for the high price (if you do the price per core ratio you can see that the price per core is higher than for say the 3900X), to which the binning (selection of chips by quality) is perhaps not for nothing.

Global rating

9/10

based on 2 reviews Editorial and moderation guide

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2 reviews
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by Xavier M
Posted on 4 Jun 2020

Product bought from LDLC on 29 Apr 2020

Number of reviews: 5 Average rating: 8

Very very good

A good processor in all with him the multitasking takes another dimension.
However it heats up so plan on efficient cooling for the cpu.
It is particularly efficient in 3d rendering

Review automatically translated
by ARandomCat
Posted on 19 Feb 2020

Product bought from LDLC on 6 Feb 2020

Number of reviews: 5 Average rating: 8

Excellent but expensive

Used for 3D rendering and games, the performance is very good, as you can imagine with its 16 cores and 32 threads.

In terms of temperature, either with a Corsair h115i pro or with a Noctua NH-D15S mounted with two fans, the temperatures under load are quite similar, around +55/+60 °C compared to the ambient during rendering (100% all-core).
The AIO allows to gain 2-3 degrees and therefore a few MHz of Precision Boost (~50 to 75 MHz in my case), but the water temperature hardly decreases, expect more noise.

As far as boost is concerned, don't hesitate to activate PBO if the motherboard is solid enough, the performance gain, although slight, is nevertheless real, especially under all-core load.
The theoretical maximum frequencies are however rarely reached (I get 4600, sometimes 4650, but I have only seen 4700 once on a core) in real use, in normal use I get 4500-4550, and all-core 4000-4100 depending on the load.
(it may be that custom water cooling helps to increase this performance)

The direct CPUSSD NVMe link (on most motherboards) is also a bonus in terms of I/O performance.

Provide 3600MHz memory (recommended by AMD, for FCLK/Infinity fabric at 1800Mhz which is the expected stable maximum) with as low CAS as possible to optimise performance, there is a relatively large impact unlike Intel architecture which is less sensitive to it.

Finally, I take one star off for the high price (if you do the price per core ratio you can see that the price per core is higher than for say the 3900X), to which the binning (selection of chips by quality) is perhaps not for nothing.

Review automatically translated

General information	Product name	AMD Ryzen 9 3950X (3.5 GHz / 4.7 GHz)
	Brand	AMD AMD
	Model	100-100000051WOF
Main characteristics	Processor model	AMD Ryzen 9
	Processor support	AMD AM4
	CPU frequency	3.5 GHz
	Frequency in Turbo mode	4.7 GHz
	Number of cores	16
	Number of threads	32
	Platform (processor)	AMD Zen 2
Architecture	Core name	Matisse
	Engraving fineness	7 nm
	TDP	105 W
	L2 cache	6 MB
	L3 cache	64 MB
	Motherboard chipset compatibility	AMD A320
		AMD A520
		AMD B350
		AMD B450
		AMD B550
		AMD X370
		AMD X470
		AMD X570
Graphics chipset	Graphics chipset	None
Memory controller	Memory controller	DDR4
	Memory controller type	Dual Channel
	Memory Frequency(ies)	DDR4 2133 MHz
		DDR4 2400 MHz
		DDR4 2666 MHz
		DDR4 2933 MHz
		DDR4 3200 MHz
Advanced technologies	Virtualization	AMD Virtualization (AMD-V)
Advanced technologies	Virtualization	AMD-Vi
Packaging	Typical use	Desktop computer
	Gamer	Yes
	Box version	Yes
	Fan supplied	No
Warranties	Commercial warranty	Seller 2 years
Warranties	Legal warranty	See terms & conditions

Processor 16-Core 32-Threads socket AM4 GameCache 70 MB 7 nm TDP 105W (boxed version without fan - 3 years manufacturer warranty)

Overview

Specifications

Customer reviews

Elite performance for gamers and creatives

Zen 2 Microarchitecture

16 native cores and 32 logical cores

Key Features :

General information

Product name

Brand

Model

Main characteristics

Processor model

Processor support

CPU frequency

Frequency in Turbo mode

Number of cores

Number of threads

Platform (processor)

Architecture

Core name

Engraving fineness

TDP

L2 cache

L3 cache

Motherboard chipset compatibility

Graphics chipset

Graphics chipset

Memory controller

Memory controller

Memory controller type

Memory Frequency(ies)

Advanced technologies

Virtualization

Packaging

Typical use

Gamer

Box version

Fan supplied

Warranties

Commercial warranty

Legal warranty

Very very good

Excellent but expensive