Average Bench: 88.9% (42nd of 1257)

Based on 576 user benchmarks.  Device: 178BFBFF00870F10 Model: AMD Ryzen 9 3900XT 12-Core Processor

The XT series of Ryzen CPUs barely outperform their cheaper X and non-X counterparts: 3600, 3600X, 3800X, 3900X. Outside of encoding workloads such as UserBenchmark 64-core, Cinebench, Blender-CPU and Handbrake-CPU the Ryzen architecture remains limited by relatively high latency and the associated gaming bottleneck (frame drops). Dedicated hardware such as NVENC or QuickSync remains far more efficient than CPU cores for encoding. CPU based encoding is akin to using hair clippers on a lawn. The best value CPU amongst the Ryzen range is the 3300X which is the first design to focus on delivering lower latency, and therefore better performance where users need it, rather than “Moar Coars”. Aside from the army of anonymous influencers on social media (reddit, forums, youtube etc.), users will be hard pressed to find rational arguments that favor the XT variants over their cheaper predecessors. [Jul '20 CPUPro]


Very good average bench

The AMD Ryzen 9 3900XT averaged just 11.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the AMD Ryzen 9 3900XT near the top of the comparison list.


Avg. Multi Core Mixed Speed 2,131Pts
Avg. Octa Core Mixed Speed 1,038Pts

Very good consistency

The range of scores (95th - 5th percentile) for the AMD Ryzen 9 3900XT is just 16.8%. This is a relatively narrow range which indicates that the AMD Ryzen 9 3900XT performs reasonably consistently under varying real world conditions.


Avg. Memory Latency 78Pts
Avg. Quad Core Mixed Speed 534Pts

Average Bench

(Based on 576 samples)
Min Avg Max
67.8 Memory 78 88.5
128 1-Core 138 149
257 2-Core 275 295
90.9% 164 Pts
Min Avg Max
475 4-Core 534 571
888 8-Core 1,038 1,105
97.1% 786 Pts
Min Avg Max
1,945 64-Core 2,131 2,274
143% 2,131 Pts
User Benchmarks Bench Normal Heavy Server
The fastest CPU (mainstream) averages a speed of 100%
AM4, 1 CPU, 12 cores, 24 threads
Base clock 3.8 GHz, turbo 4.15 GHz (avg)
Memory 84.3
1-Core 141
2-Core 283
94% 170 Pts
4-Core 534
8-Core 1052
98% 793 Pts
64-Core 2,162
145% 2,162 Pts
AM4, 1 CPU, 12 cores, 24 threads
Base clock 4.3 GHz, turbo 4.25 GHz (avg)
Memory 77.6
1-Core 138
2-Core 279
91% 165 Pts
4-Core 555
8-Core 1,109
102% 832 Pts
64-Core 2,308
155% 2,308 Pts
AM4, 1 CPU, 12 cores, 24 threads
Base clock 3.8 GHz, turbo 4.2 GHz (avg)
Memory 82.1
1-Core 141
2-Core 278
93% 167 Pts
4-Core 525
8-Core 973
93% 749 Pts
64-Core 2,180
146% 2,180 Pts
AM4, 1 CPU, 12 cores, 24 threads
Base clock 4.1 GHz, turbo 4.1 GHz (avg)
Memory 77.2
1-Core 133
2-Core 264
88% 158 Pts
4-Core 529
8-Core 982
94% 755 Pts
64-Core 2,197
147% 2,197 Pts
AM4, 1 CPU, 12 cores, 24 threads
Base clock 3.8 GHz, turbo 4.25 GHz (avg)
Memory 69.7
1-Core 141
2-Core 282
90% 164 Pts
4-Core 560
8-Core 1,099
102% 830 Pts
64-Core 2,215
149% 2,215 Pts
AM4, 1 CPU, 12 cores, 24 threads
Base clock 3.8 GHz, turbo 4 GHz (avg)
Memory 83
1-Core 130
2-Core 258
88% 157 Pts
4-Core 482
8-Core 961
89% 722 Pts
64-Core 2,153
144% 2,153 Pts
576 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,469,414 CPUs tested.


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Typical Ryzen 9 3900XT Builds (Compare 5,905 builds) See popular component choices, score breakdowns and rankings.
Gaming 105%
Desktop 96%
Nuclear submarine
Workstation 120%

Motherboard: Asus ROG STRIX X570-E GAMING - $300

EDIT WITH CUSTOM PC BUILDER Value: 66% - Good Total price: $1,484

Popular Ryzen 9 3900XT compatible motherboards:

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Processor Rankings (Price vs Performance) August 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Added n/a ago.

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8 days ago.

AMD are great at selling junk. They pee in the well with fake comments, glorified cheerleaders on youtube and paid magazine reviews. My POS PC still crashes randomly. Everybody needs to call the rats out instead of letting them get away with it.


5 hrs ago.

I love it


28 days ago.


28 days ago.

useless refresh higher than 4300 MHz works again most select cpus

1257 Processors (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different CPUs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

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