AMD Ryzen 9 3900 Benchmarked: A 12 Core, 65 Watt Powerhouse

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Courtesy of AMD’s announcement of the PRO lineup of the 3rd Gen Ryzen 3000 processors, we’ve got an idea about the Ryzen 9 3900X’s younger non-X sibling. When compared to the Ryzen flagship, this processor has a far lower base TDP of 65W (105W for Ryzen 9 3900X) and runs at a base clock of 3.1 GHz and a boost frequency of 4.3 GHz. Judging by the price tag of $499 for the Ryzen 9 3900X, we can expect this CPU to be priced in the same range of 430 to 480 USD.

The specifications for the unreleased Ryzen 9 3900 are pretty similar to the Ryzen 7 3700X except for the 4 additional cores and a beefy 70MB cache memory.

AMD Ryzen 9 3900 Benchmarks

Testbench

  • CPU: Ryzen 9 3900
  • Motherboard: ASRock X570 Taichi
  • Graphics card: RX 560X
  • Memory: Team Group A2 B-Die Memory
  • Storage: Team Group L5 3D (256GB)

When the Ryzen 9 3900 was manually overclocked to 4.35 GHz for all the cores, a Cinebench R15 score of 3,420 was observed. To further overclock the CPU, Tom’s Hardware used liquid nitrogen to test the processor. This removes many variables that may be caused due to environmental factors and the quality of cooling devices used. With liquid nitrogen cooling and the clock speed pumped up to 5.5 GHz on all cores, the Ryzen 9 3900 scored 4,319 points on Cinebench R15. To put things in perspective, the base Ryzen 9 3900X scored 3,123 Cinebench R15 score and the Intel Core i9-9900K scored 2,026 in the same.

In Geekbench too, similar impressive results were observed. The Ryzen 9 3900 scored 6,924 for single-core and a massive 77106 for the multi-core benchmarks.

We’re not completely sure why the 3900 was faster than the 3900X in Cinebench, but the most likely reason could be the thermals. The latter fails to reach advertised clocks under stock conditions due to power and temperature constraints, however, the 3900 comes with a lower TDP and hence better thermals and as such many samples should perform on par or better than the 3900X in multi-threaded workloads like Cinebench.

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