AMD Ryzen 9 Matisse 3900X BOX (100-100000023BOX)
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The processor with 12 cores and 24 threads belongs to the advanced Ryzen 9 Matisse line, in which AMD has collected its best mid-2019 solutions designed for the mainstream Socket AM4 platform. The CPU is the carrier of the Zen 2 microarchitecture, created using a 7nm process technology. In the base mode, the core clock speed is 3.8 GHz, and due to the Precision Boost 2 technology, it increases by 800 MHz, reaching 4.6 GHz.
The AMD 3900X BOX processor also received an unlocked multiplier, which leaves room for experimentation for overclocking enthusiasts. The advantages of the model include increased to 64 MB cache memory of the third level, support for the accelerated version of the PCI Express 4.0 bus and DDR4-3200 format "RAM", which allows you to assemble a high-performance and omnivorous computer. The heat dissipation of the CPU reaches 105 W, and the included Wraith Prism cooler, supplemented by RGB LED lighting, is designed to protect the system from overheating.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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I took 2070s, asus tuf gaming x570 and ryzen9 3900x for assembly. If I could return the time, I would most likely take intel. I can’t say that the percent is really bad, it’s just that its advantages are rarely used in my tasks. Multithreading is good for rendering, but for modeling and games it gives very little because these processes are usually one or two threaded and simply run into 1 core. I changed the wraith prism box cooler to a noctua because it is quite noisy and in the tests the percentage gave out 95 degrees right from the threshold. It also didn’t work out adequately to overclock the RAM (kit 16x2 corsair vengeance 3000mhz), the maximum that I got was 3200 by 17. Although reviews, articles, a ryzen calculator, etc. showed completely different indicators. As a result, in RAM latency tests, it shows a value of 75ns (in Intel, this value is two times lower). Even if we assume that very bad dies were caught, then for good ones this value would be in the range of 63-65, which is still a lot. -Relatively small TDP -High RAM latency, actual lock of infinite fabric at 1900mhz -Slow stock cooler -Comparatively poor for single-threaded tasks  nikolai tihres: use AMD 3900X BOX more than year |
Top stone for its price. 16 cores for 49k (June 2020). Operates at a frequency of 4.2 GHz. Ideal for computer graphics Performance! 9700 parrots in signbench, after the blue 7800x (3300 barely) this is impressive :) of course CPU rendering is no longer relevant, but simulations of liquids, solids, etc. So far on the CPU and this stone is perfect. I would like to squeeze 4.5 GHz))) Andrey Flat: use AMD 3900X BOX few months |
The review concerns 3900 (WITHOUT X) A very cozy little chip. My particular unit undervolted well and allowed some fun with boosting. It could work with 3800 memory, but the Infinity Fabric faltered, refusing to go above 1800, otherwise causing WHEA bus/interconnect errors that couldn't be resolved. It's not a huge loss, everything is quite respectable as it is. Single-core performance (and gaming performance) is on par with 8700K-9900K (keeping in mind that 9900K has a 500MHz higher core clock, and everything becomes clear for those "in the know"). In principle, this processor sits somewhere between the 9900K and 10900. Those who like to talk about high latencies, just open Zen Timings, observe the desynchronization in UCLK/MCLK/FCLK, slap your clumsy hands and delete inaccurate comments. A big hello to those who pair such a chip with single-rank memory - guys, don't build PCs, it's not for you) Buy a pre-built one somewhere like Foxtrot, save yourself and others from trouble). Also, a shoutout to water cooling enthusiasts, I'll let you in on a secret that practically any mid-range air cooler can handle this CPU (I had a Dark Rock 4, but you can go for something cheaper with similar efficiency. My PBO limits were set higher than those of the 3900X). That overclock on the screenshots were intermediate results, unfortunately, I don't have the final ones at hand right now. I gave the system to a friend, was too reluctant to sell it( As a result, single-threaded performance matched the 3900X level, and multi-threaded performance was even better. Boost on all cores was 4200, and stable 4450 on a single core. Good performance, absolutely everywhere and in everything. For the money that it SHOULD cost, it would have no analogues. But.. 1) The market broke the philosophy of this processor, as it was supposed to cost significantly less than the 3900x while being better (in the right hands), but that didn't happen. In fact, they were either priced the same or the difference was meaningless. These processors are very, very rare, maybe that had an effect.. 2) There are many inexperienced users who manage to "choke" the processor, then go to the comments.. 3) Requires good memory. Good does not mean the most advanced and expensive. Right now, finding reasonably priced dual-rank RAM that can do 3600 cl16 is not a problem at all. Anything that isn't dual-rank noticeably chokes the processor in games because there's a huge L3 cache here, one just needs to organize the data pumping for the processor.. Zen cores are quite fast on their own. 4) Requires a motherboard with a good power supply. Good does not mean you need to buy something uber-expensive and overclocked, just a good one. 5) Worked DISGUSTINGLY on the Crosshair 6 Hero x370, stability was not there. Moving to the B550-A Rog Strix solved all the problems one by one, perfect performance. This relates to the processor only in so far as it's for your information. Dmitriy Mitus: use AMD 3900 OEM more than year |
AMD Ryzen 9 Matisse configurations
| Price for AMD Ryzen 9 Matisse | ||||
|---|---|---|---|---|
| AMD Ryzen 9 Matisse 3900X BOX | from £228.46 | 2 offers | |
| AMD Ryzen 9 Matisse 3900X OEM | from £690.65 | 5 offers | |
Long live the king!
The 3900X processor with 12 cores and 24 threads belongs to the advanced Ryzen 9 Matisse line, in which AMD has embodied its best practices. Besides the fact that this is one of the most powerful processors on the market, it is also attractive because it runs on a regular AM4 socket, like most other AMD chips. Recall that the record-breaking powerful AMD "stones" of the past generation belonged to the Threadripper family and worked with expensive and rare motherboards based on TR4 logic.
Old logic in a new way
Together with the new Zen 2 microarchitecture, AMD presented a new topology. Processors are no longer a monolithic crystal, but are assembled from several components. This allows the company to offer new powerful chips with 12 and 16 cores within the old Socket AM4 ecosystem. Each such chipset combines two CCX-complexes containing four cores and 16 MB of L3 cache. Given that the Ryzen 9 3900X is a twelve-core processor, it is constructed from three semiconductor crystals at once. All this, instead of using the Zen 2 architecture, allowed AMD to make the processor omnivorous and almost universally high-performance: it performs well under almost any kind of load. Detailed application testing has shown that AMD's new mainstream flagship is much faster than the slightly cheaper eight-core i9-9900K and, moreover, often outperforms even the 12-core Core i9-9920X, the official price of which is $1,200, but for which in stores from — for the deficit ask for much more.
Not for enthusiasts
Now for the disadvantages. AMD was in a hurry with the release of this processor and literally rewrote drivers, changed overclocking-power consumption ratios and updated firmware for socket AM4 literally on the go. All this resulted in a strange situation that, being an enthusiast processor, the 3900X began to behave strangely as soon as you climbed under the hood: either the arithmetic performance between cores changed, or it simply did not respond to changes in BIOS frequencies or voltage increases. As a result, it turned out that its stable frequencies are 4.7 – 4.8 GHz. Powerfully and stably, only memory overclocking is kept here. It turns out that out of the box the processor works like clockwork, just turn on XMP and you're good to go. For overclocking, you need to either wait for a stable firmware, or wait until the Ryzen 9 3950X goes on the market.
