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May 17, 2024

What is a 3900x Device?

As one of the most powerful consumer processors available, the 3900x can power a desktop PC capable of running games at resolutions and frame rates that exceed even the highest-end 4K monitors. In addition to gaming performance, this processor can also accelerate other computing tasks and ancillary hardware such as SSDs.

This is AMD's first mainstream CPU to use a 7nm manufacturing process. It also uses the debut of its new Zen 2 microarchitecture, which allows it to support 12 cores, a huge step up from Intel's 8-core mainstream chips. The chip is a formidable competitor to Intel's Core i9-9900K and could mark the beginning of AMD's long-awaited comeback to the top of the PC CPU market.

While many of the finer details in the comparisons between this chip and Intel's Core i9-9900K will be based on subtle differences in performance and ancillary features, there is no denying that both AMD's Ryzen 3900X and Intel's flagship chip offer very competitive performance in most testing. This is particularly true in multi-threaded workloads, where the more cores and threads a chip has at its disposal, the better it is able to handle complex workflows that modern software applications are designed to assign to as many of the chip's cores and threads as possible.

The Ryzen 9 3900X's advantage in this area may be slightly diminished by the fact that it uses a more-efficient architecture than the Intel chip, but its 12 cores and 64MB of L3 cache make it a formidable contender in most tests. It can run at a stock speed of 3.8GHz and boost to 4.6GHz, and it has plenty of headroom for overclocking.

Both the 3900X and the i9-9900K have impressive single-core performance as well, but they lag behind each other in multi-threaded benchmarks like Cinebench and POV-Ray. This is primarily due to the difference in their design, with the i9-9900K relying on an unlocked multiplier that can be adjusted on the fly, while the Ryzen 9 3900X relies on a more stable and efficient core design.

This chip is compatible with most existing AM4 motherboards, but it will require a new X570-chipset-based motherboard to enable support for PCI Express 4.0, which can transfer data at speeds of up to 40GBps. This is important for many users, especially those who plan to attach external peripherals that can take advantage of these faster transfer rates.