Aug 26, 2019
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AMD Ryzen 9 3900X 12-Core Unlocked Gaming CPU Review

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AMD Ryzen 9 3900X, an advanced mainstream processor on the market that delivers outstanding performance at a reasonable price point. The Ryzen 9 3900X packs 12-cores and 24-threads in a mainstream package for the first time, and does it at a similar price point as the Intel Core i9-9900K, a processor with just 8-cores and 16-threads.

This is AMD’s first Ryzen 9 processor and it is a 12-core, 24-thread CPU based on their latest 7nm Zen 2 microarchitecture. The 3900X has a boost/base clock of 3.8/4.6 GHz, 64 MB of L3 cache (double the L3 on the rest of 3000 series), support for 3200 MHz DDR4 system memory and a TDP of 105W. All this, plus a Wraith Prism cooler, at a very reasonable launch price of $499 USD. By comparison, Intel’s 8-core, 16 thread i9-9900K is available for $479 USD (and requires a cooler: $30+ USD).

The most important improvement in this CPU is the massive increase to IPC, or instructions per clock. AMD claims that it was able to increase IPCs in its 3rd generation Ryzen chips by up to 15%, which goes a long way to explaining why single-core performance sees such a boost over something like the AMD Ryzen 7 2700X.

AMD Ryzen 9 3900X Wraith Prism cooler

One thing that the switch to 7nm silicon has allowed for, however, is an increase in cache size. AMD is now describing its L3 and L2 cache in a combined spec of ‘GameCache’ – even though it’s basically the same thing. But, because the 7nm CPU cores are contained within their own chipsets, AMD was able to pack much more in – with a whopping 64MB of L3 and 6MB of L2, for a combined 70MB of GameCache. This is a really big deal, as it allows for much faster performance, especially when you’re shooting for high framerates in 1080p games, and will be especially effective in old esports titles.

Another improvement that comes with AMD Ryzen, and more specifically the X570 chipset, is the long-awaited inclusion of PCIe Gen 4. Now, the only graphics cards that use PCIe 4.0 today are the AMD Radeon RX 5700 XT and AMD Radeon RX 5700, but your GPU is almost less noteworthy than the improvements it will bring to the best SSDs.

After testing with PCIe 4.0 SSD, we saw an amazing speed. We were able to get sequential reads near of 5,000 MB/s, a 30% boost over our previous fastest SSD, the Samsung 970 Pro. Out of all the features that Ryzen 3rd Generation brings to the table with the new X570 chipset, this might be one of the most meaningful as it should contribute to a faster system overall.

CPU Benchmarks (from cpubenchmark.net)

Finally, the shrink down to 7nm allows for much better energy efficiency. Because of the Zen 2 architecture, AMD Ryzen 3rd Generation processors like the Ryzen 9 3900X and Ryzen 7 3700X should be up to 58% more efficient than comparable Intel processors. This isn’t the most noteworthy feature here, but, hey, it should translate to lower electricity bills, and in today’s economy every little bit helps, right?

If you’re looking for the absolute best processor money can buy on a mainstream processor, then look no further. All in all, AMD Ryzen 9 3900X is the best mainstream processor on the market right now. With 12-cores and 24-threads performance that destroys everything in its path and the inclusion of PCIe 4.0, you can’t find a better processor without stepping up to the flagship market.

 

AMD Ryzen™ 9 3900X Specifications

# of CPU Cores: 12
# of Threads: 24
Base Clock: 3.8GHz
Max Boost Clock: 4.6GHz
Total L1 Cache: 64KB
Total L2 Cache: 6MB
Total L3 Cache: 64MB
Unlocked: Yes
CMOS: TSMC 7nm FinFET
Package: AM4
PCI Express® Version: PCIe 4.0 x16
Thermal Solution: Wraith Prism with RGB LED
Default TDP / TDP: 105W
Max Temps: 95°C
System Memory Specification: 3200MHz
System Memory Type: DDR4
Memory Channels: 2

Highlights

  • The world’s most advanced processor in the desktop PC gaming segment
  • Can deliver ultra fast 100+ FPS performance in the world’s most popular games
  • 12 Cores and 24 processing threads, bundled with the AMD Wraith Prism cooler with color controlled LED support
  • 4.6 GHz Max Boost, unlocked for overclocking, 70 MB of game Cache, ddr 3200 support
  • For the advanced socket AM4 platform, can support PCIe 4.0 on x570 motherboards

AMD Ryzen 9 3900X 12-core, 24-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler

Bestseller No. 1
AMD Ryzen 9 3900X 12-core, 24-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler
  • The world's most advanced processor in the desktop PC gaming segment
  • Can deliver ultra fast 100+ FPS performance in the world's most popular games
  • 12 Cores and 24 processing threads, bundled with the AMD Wraith Prism cooler with color controlled LED support
  • 4.6 GHz Max Boost, unlocked for overclocking, 70 MB of game Cache, ddr 3200 support
  • For the advanced socket AM4 platform, can support PCIe 4.0 on x570 motherboards
5% OFFBestseller No. 2
AMD Ryzen 7 3800X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler
  • The world's most advanced processor in the desktop PC gaming segment
  • Can deliver ultra fast 100+ FPS performance in the world's most popular games
  • 8 Cores and 16 processing threads, bundled with the AMD Wraith Prism cooler with color controlled LED support
  • 4.5 GHz Max Boost, unlocked for overclocking, 36 MB of game Cache, ddr 3200 support
  • For the advanced socket AM4 platform, can support PCIe 4.0 on x570 motherboards
Bestseller No. 3
AMD Ryzen 7 3700X 8-Core, 16-Thread Unlocked Desktop Processor with Wraith Prism LED Cooler
  • The world's most advanced processor in the desktop PC gaming segment
  • Can deliver ultra fast 100+ FPS performance in the world's most popular games
  • 8 Cores and 16 processing threads, bundled with the AMD Wraith Prism cooler with color controlled LED support
  • 4.4 GHz Max Boost, unlocked for overclocking, 36 MB of game Cache, ddr 3200 support
  • For the advanced socket AM4 platform, can support PCIe 4.0 on x570 motherboards

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Last update on 2019-10-15 at 03:10

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