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AMD Ryzen 9 3900XT 3.8GHz Twelve Core 105W


AMD Ryzen 9 3900XT 3.8GHz Twelve Core 105W Picture 61951

Background on AMD Ryzen CPU

AMD's third generation of Ryzen processors offer more cores and higher clock speeds than previous models. Both of those improvements are enabled by use of multiple "chiplets" built on a 7nm process together with a larger 12nm IO die to tie them all together. In addition to architecture improvements, these processors also support faster memory - but the officially supported speeds depend on how many memory modules are used and whether they are single or double rank.

For details about how AMD Ryzen CPUs perform in different applications, check out our many processor (CPU) articles.

William George (Puget Labs Technician)
William George (Puget Labs Technician) Says:
This is almost exactly the same as AMD's Ryzen 9 3900X processor, just with 100MHz higher maximum boost speed. The practical impact of that is about 1-2% higher performance in most applications, which is almost impossible to notice without actually timing things... but since the price is the same, there is really no reason not to get this model if it is available.
Model: AMD 100-100000277

Product Line  Ryzen
Code Name  Matisse
Socket  AM4
Process  7 nm
Number of Cores  12
Clock Speed  3.80 GHz
Simultaneous Multi-Threading  Yes
Turbo Boost  Yes
Max. Turbo Boost  4.70 GHz
All-Core Turbo Boost  4.10 GHz
Bus Type  Infinity Fabric
Thermal Output  105 W
PCI-E Lanes  16
Max Temperature  95 C
L2  6MB
L3  64MB
Memory Specification
Memory Type  DDR4
Maximum Frequency  3200
ECC Support  Yes
Registered Support  No

Maximum memory speed is reduced when configured with two DIMMs per channel.

  • Single rank: 2933 MT/s
  • Dual rank: 2666 MT/s

Configure a custom computer with the AMD Ryzen 9 3900XT 3.8GHz Twelve Core 105W.