AMD Ryzen 9 3900X Processor: Overview (Special)| Overclocking | Benchmark | Specs

AMD Ryzen 9 3900X CPU + RGB Fan (Unboxing, Installation, BIOS settings)

AMD Ryzen 9 3900X Processor: Overview / is it good for gaming / Benchmark/ Overclocking/ Specification (Specs) – Previously, to create a productive station with a multi-core processor inside (10 computational threads or more), users had to fork out for expensive server-level platforms (LGA 2011/2066, Socket TR4, etc.). As a rule, such solutions are compatible with 4-channel RAM, and this entails additional costs. With the release of the Ryzen 3000 series CPU line, the situation has changed dramatically.

risen 3900x
AMD Ryzen 9 3900X Processor

The Ryzen 9 3900X has virtually no competitors in the mainstream segment.

Now, to build a powerful computer, it is not necessary to choose a top-end motherboard and spend money on four bars of RAM. For Socket AM4 (this option, by the way, is considered mainstream), AMD has released quite high-performance stones with 12 and 16 cores on board (we are talking about Ryzen 9 3900X and Ryzen 9 3950X).

AMD Ryzen 9 3900X CPU + RGB Fan (Unboxing, Installation, BIOS settings)

AMD Ryzen 9 3900X CPU + RGB Fan (Unboxing, Installation, BIOS settings)

Intel simply does not have such solutions (something similar can be found based on Socket LGA 2011/2066, which we have already mentioned), which means that AMD right now is a monopolist (so to speak) in the specified professional segment.

Obviously, this category (PC, where the center is a CPU with 12-16 physical cores) is rather narrow-profile, it has nothing to do with gamers. Nevertheless, saving several tens of thousands of rubles, if for some reason you need a processor with 24 computational threads (and higher), is quite realistic.

Notably, AMD stone Ryzen 9 3900X is still called gaming (and even the most advanced), although we are well aware that there is no sense in modern toys from 12 physical cores (4-6 computing threads are enough for them).

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AMD Ryzen 9 3900X Processor: Specification (Specs)

So, the 7 nm Ryzen 9 3900X processor has 12 physical cores and 24 computing threads, the nominal clock frequency of the device is 3800 MHz (in automatic acceleration mode, one core operates at 4600 MHz). The L3 cache is 64 MB.

The reviewed CPU is compatible with dual-channel DDR4-3200 RAM and Socket AM4 (there is support for PCI-E 4.0). Almost certainly the owner of this stone will choose a motherboard based on the X570 chipset as the basis, but it is important to know that the Ryzen 9 3900X also works with budget chipsets (it is known about friendship this processor with AMD B350).

 Ryzen 9 3950XRyzen 9 3900XRyzen 7 3800X
Technical process7 nm7 nm7 nm
Kernels / threads16/3212/248/16
Clock frequency3500/4700 MHz3800/4600 MHz3900/4500 MHz
L3 cache64 MB64 MB32 MB
TDP105 W105 W105 W
Memory supportDDR4-3200 dual channelDDR4-3200 dual channelDDR4-3200 dual channel
PCI-E version4.04.04.0
Unlocked multiplierYesYesYes
AMD Ryzen 9 3900X Processor: Specification (Specs)

Declared TDP Ryzen 9 3900X – 105 W, for heat dissipation from the 12-core monster we used a rather simple cooling system (Scythe Katana 3 Type I), which turned out to be enough for the nominal value (although the fan was spinning at maximum speed).

The monitoring program told about 115 W TDP, and in stress tests the temperature jumped up to 72 degrees (on an open bench). We highly recommend pairing with this stone powerful two-fan cooler, or CBO.

It is important to add that Ryzen CPUs (starting from the 3000th series) have learned to work normally with high-frequency RAM. The Ryzen 9 3900X fired up instantly with a Kingston dual-channel kit at 3600 MHz, that is, on a DOCP profile (similar to XMP).

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In addition, 3rd generation Ryzen CPUs perform just as well in today’s games as stones Intel Core (same load time, almost the same fps and stability). Optimization ryzens The 3000th series deserves the highest praise, which means that it is not necessary to choose a processor exclusively from Intel for a gaming computer. Remember this.

AMD Ryzen 9 3900X Processor: Test stand

Motherboard – ASUS ROG Crosshair VIII Formula
RAM – Kingston HyperX Predator DDR4-3600 (2×8 GB)
Drive – GoodRam PX500 512 GB
Video Card – ASUS ROG Strix GeForce RTX 2080
Power Supply – ThunderX3 Plexus 700

AMD Ryzen 9 3900X Processor: Performance and test results

The Ryzen 9 3900X has virtually no competitors in the mainstream segment (that is, among platforms that support dual-channel memory). This is a one of a kind product. We have included the results of multi-core CPUs from Intel for Socket LGA 2066 in the test charts (but this story is not directly related to our topic for the reasons mentioned above).

AMD has created an uncompromising 12-core processor.

The Ryzen 9 3900X easily outperforms the 10-core Core i9-7900X in professional benchmarks and competes on equal terms with the 16-core Core i9-7960X, while the Core i9-7900X costs 65,000 rubles, and the Core i9-7960X costs 130,000 rubles (Ryzen itself 9 3900X is estimated at 40,000 rubles). Cool, isn’t it?

For $500 (plus/minus), Intel can only offer the Core i9-9900KF (8 physical cores and 16 computing threads), which in absolutely all applications (professional/multimedia) lags far behind the Ryzen 9 3900X.

Moreover, even in single-threaded calculations and games, the guest of today’s review does not lose to the fast Core i7 and Core i9.

On shoulders Ryzen 9 3900X can hoist even server tasks. See how easy this CPU is cracking down with a 12-core Ryzen Threadripper 1920X (and this is a device of a completely different class).

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Let’s talk about gaming applications, everything is very simple here. Ryzen 9 3900X capable swing any modern high-end video card and extradite decent frame / s, but let’s turn to real numbers. Ghost Recon Wildlands is under 23% CPU usage (Full HD) and 28% in The Division 2. At high resolutions (1440p/2160p), the performance is even more modest.

AMD Ryzen 9 3900X: Overclocking

The bad overclocking potential of Ryzen processors is well known to everyone. But even with a simple Ryzen 9 3900X air cooler wound up at 4000 MHz (all 12 cores). Moreover, it consistently passed stress tests (although the overall performance in this format increased by only a few percent).

The Scythe Katana 3 Type I CO is unsuitable for these purposes (85 degrees under load is too much), but the CBO is ideal for such experiments. Please note that you will have to remove at least 150 watts of heat.


AMD has created an uncompromising 12-core processor that has no mainstream competitors right now. Is it easy to believe?

You can argue as much as you like about the pointlessness of creating a computing station based on the X570 chipset and dual-channel memory, as well as about optimization, which is better for certain solutions, but the fact remains.

Multi-core response Intel does not (based on Socket LGA 1151), it will appear only in the future (although here without guarantees). So AMD offers the target audience a unique and extremely curious product.

The capabilities of the Ryzen 9 3900X are hard to overestimate. This productive stone Designed for lightning-fast performance of resource-intensive operations. It is necessary for installation in powerful systems, where the main load falls on the CPU. It is important to say that this 12-core processor is also enough cold for your hardware. Recommended.

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