AMD Ryzen 9 3900XT Desktop Processor Review: Refined Silicon Incoming

April 2, 2022 0 Comments

AMD announced the new XT lineup a few weeks ago with enhanced boost clock speeds and improvements to Silicon that were ready to help processors maintain high clock housing. Three new processors will be added to the XT lineup in the form of AMD Ryzen 5 3600XT, Ryzen 7 3800XT and Ryzen 9 3900XT. And the best part is that AMD has said that the price of these new XT devices will be the same as their X contemporaries at launch. The X parts have been out for exactly one year and their street prices have dropped a bit. The AMD Ryzen 9 3900XX retails for R 44,800 in India, and if all else fails, the new Ryzen 9 3900XT should be priced at R 46,000. Alas, over the last few months, we’ve seen the Covid-19 affect every industry, and the street price of these new parts is expected to be a bit higher. We’ll find out more when these parts start selling on retail channels.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard

AMD Ryzen 9 3900XT



The return to the new XT processors has more to do with how TSMC has improved their 7nm FF process, with Silicon’s core improvements. It is used by AMD and allows better control over the AMD voltage / frequency curve, which in turn, allows for improved clock speed. Although boost clocks are bumped up, processors typically do not spend much time in higher frequency ranges, as a result, increasing bumps in boost clocks do not translate into significant performance improvements. Improvements to the base clock have a much more pronounced effect on overall performance, and that’s where newer XT processors shine than their X counterparts.

AMD 3rd Gen RYZEN 9/7/5 Matisse XT Refresh Lineup & Specification

AMD’s new XT lineup brings a lot of changes to the specifications of the new XT processor compared to their X variant. And Silicon does not need to raise the price of the processor for such a small improvement. The competition could really take a page from AMD’s book on the subject. The Ryzen 5 3600XT and the Ryzen 9 3900XT boost bring a single bin increase to the watch while the Ryzen 7 3800XT shows double the improvement. The base clock speed, as mentioned earlier, is the same between the X and XT variants. Here’s the specification at a glance.

















Raisin 5 Raisen 7 Raisen 9
CPU 3600XT 3600X 3800XT 3800X 3900XT 3900X
Base clock 3.8 GHz 3.8 GHz 3.9 GHz 3.9 GHz 3.8 GHz 3.8 GHz
Boost watch 4.5 GHz 4.4 GHz 4.7 GHz 4.5 GHz 4.7 GHz 4.6 GHz
Process node TSMC 7 nm TSMC 7 nm TSMC 7 nm TSMC 7 nm TSMC 7 nm TSMC 7 nm
Core 6 6 8 8 12 12
Thread 12 12 16 16 24 24
L3 cache 32 MB 32 MB 32 MB 32 MB 64 MB 64 MB
TDP 95 W. 95 W. 105 W. 105 W. 105 W. 105 W.
Price (USD) 249 249 399 399 499 499
Price (Rs.) 23,588 Rs 20,874 Rs 36,568 Rs 33,618 Rs 46,008 Rs 42.46
USD-INR Forex Rate 74.85 6.44 74.85 6.44 74.85 6.44
DRAM frequency. Support 3200 MHz 3200 MHz 3200 MHz 3200 MHz 3200 MHz 3200 MHz
Bundle cooler Wraith Spire V2 Wraith Spire V2 None Wraith Prism None Wraith Prism

The international price of SKU has been kept the same. The launch price of Ryzen 5 3600X and 3600XT is USD 249 but we are more concerned with Indian price and AMD is everywhere about this. The Ryzen 5 3600X was priced at R 20,874 at launch and the new Ryzen 5 3600XT was priced at 23,588. Considering that they are dependent on imports and USD-INR rates, the two seem to have similar prices when you consider their respective launch date USD-INR rates. There is a slight USD 10 difference between the two which is in the error margin.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard Gaming

AMD Ryzen 9 3900XT desktop processor



The same goes for AMD Ryzen 7 3800XT and Ryzen 9 3900XT. However, there is a key difference here. The X variants, the 3800X and 3900X, are shipped with AMD’s Wraith Prism coolers where the XT variants are not. The Amazon.com price for the AMD Wraith Prism Cooler is USD 41.99, so there is a significant difference in the price offer of the 3800XT and 3900XT processors. Another thing to note is that people going for high-end desktop processors often choose better third-party coolers, so losing the cooler for a slightly faster clock speed is something that consumers may want to consider when making a decision. X and XT variants of these two processors.

AMD RYZEN 9 3900XT Performance

The AMD Ryzen 9 3900XT is an increasing upgrade over the Ryzen 9 3900X since only the boost clock speed increased. However, there have been several improvements in silicon that allow the Ryzen 9 3900XT to make better use of this slight improvement. Let’s see how it falls within the benchmark.

We tested the unit in the following configuration:

AMD Raisin Test Rig

CPU: AMD Ryzen 9 3900XT

Motherboard: ASUS ROG STRIX X570-E Gaming

SSD: Samsung 970 PRO 1TB

HDD: Seagate FireCuda 2 TB ST2000DX002

RAM: Corsair Dominator PRO 16GB (2x 8GB) @ 3200 MHz

Cool: Corsair H115i Pro

PSU: Corsair HX1050

As always, we start with Cinebench 20 to see how the processor fare in single threaded and multithreaded performance. At the single-threaded benchmark, the AMD Ryzen 9 3900XT performs about 3.5 percent better than the Ryzen 3900X and is still ahead of the Intel Core i9-9900K. However, when compared to the Intel Core i9-10900K, both the neck and neck in single threaded performance but the tables become a multithreaded benchmark as the AMD Ryzen 9 3900XT race is far ahead.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard Cinebench R20

AMD Ryzen 9 3900XT Cinebench R20 1T



AMD Ryzen 9 3900XT Desktop Processor Review Motherboard Cinebench R20 nT

AMD Ryzen 9 3900XT Cinebench R20 nT



As the POV-Ray is a multi-threaded benchmark, the Ryzen 9 3900XT is ahead of the rest due to its ridiculous core numbers. However, when you look at single-threaded performance, the Intel 10900K leads. In reference to the 3900X, the improvement works at about 3 percent.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard POV-Ray 1T

AMD Ryzen 9 3900XT POV-Ray 1T



AMD Ryzen 9 3900XT Desktop Processor Review Motherboard POV-Ray nT

AMD Ryzen 9 3900XT POV-Ray nT



In our handbrake run, a 4K video clip is transcoded from one codec to another without changing the resolution. Handbrake is the fastest and most ‘creative community’ to incorporate new CPU encoding engines. The 3900XT shows a marked reduction in encode time on the Intel Core i9-10900K but remains in the same vicinity as the Ryzen 9 3900X.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard Handbrake

AMD Ryzen 9 3900XT handbrake



Blender is a fairly well-known open source rendering software. In this benchmark, we see the time taken for a run to finish rendering. So the lower the score in this test, the better the CPU. The AMD Ryzen 9 3900X finished the run one minute earlier than the Ryzen 9 3900X which, again, is a growing improvement. However, this difference is only detected when running multiple repetitions of the same work pressure. A single run, the difference is barely there.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard Blender

AMD Ryzen 9 3900XT Blender



The 7-Zip decompression benchmark makes the Ryzen 93900X slightly ahead of the XT processor. We had to run this particular benchmark more than the normal number of repetitions to ensure results.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard 7-Zip

AMD Ryzen 9 3900XT 7-Zip



WebXPRT is a browser-based JS and HTML5 benchmark with a number of common browsing behaviors and is more focused on single-threaded workloads and explosions. We see the Intel Core i9-10900K performing about five percent better than the Ryzen 9 3900XT.

AMD Ryzen 9 3900XT Desktop Processor Review Motherboard WebXPRT

AMD Ryzen 9 3900XT WebXPRT



AMD Ryzen 9 3900XT Desktop Processor Review Motherboard Gaming

AMD Ryzen 9 3900XT Gaming



On our gaming benchmark, we see an average of 1-2 FPS improvement with the Ryzen 9 3900XT compared to the Ryzen 93900X at 1080p. We run GTA V, Ashes of the Singularity, Assassin’s Creed Odyssey. HITMAN 2, CSGO, PUBG, Overwatch and Apex Legends.

Judgment

For those looking to make a new PC, the AMD Ryzen 9 3900XT is a fairly obvious choice over the Vanilla Ryzen 9 3900X because you get that boost clock speed. Unlike the 3900X, the 3900XT does not come with a Weth Prism cooler or any cooler in that regard, so this is something that PC makers may want to factor in their buying decisions. In addition, the Ryzen 9 3900XT is a great processor for PCs generally ready for gaming, content creation, 3D modeling and multi-tasking. Moreover, the Indian price (INR 46,000) is not a dealbreaker

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