Ryzen 9 3900X

Details and Benchmarks for AMD Ryzen 9 3900X

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Ryzen 9 3900X based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

6,609 Rank: 106
Rank Name Score Visual
102 EPYC 7702 6,615
+0.1%
103 Core i9-12900T 6,615
+0.1%
104 Core i9-9960X 6,612
+0%
105 Ryzen 9 5900X 6,612
+0%
106 Ryzen 9 3900X 6,609
107 Core Ultra 7 268V 6,608
+-0%
108 EPYC 7642 6,599
-0.2%
109 Xeon w5-2455X 6,595
-0.2%
110 Core Ultra 9 185H 6,595
-0.2%
111 Ryzen 5 7500F 6,587
-0.3%

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Multicore Score

Multicore performance score for Ryzen 9 3900X based on multi-threaded benchmark results.

6,572 Rank: 145
Rank Name Score Visual
141 Core i9-7940X 6,614
+0.6%
142 Ryzen 7 PRO 7745 6,604
+0.5%
143 Xeon Gold 6138T 6,596
+0.4%
144 Core i9-12900 6,585
+0.2%
145 Ryzen 9 3900X 6,572
146 Ryzen 9 5950X 6,571
+-0%
147 Xeon w5-3425 6,563
-0.1%
148 Xeon Gold 5416S 6,542
-0.5%
149 Xeon Platinum 8168 6,539
-0.5%
150 Ryzen 9 3950X 6,534
-0.6%

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Singlecore Score

Single-core performance score for Ryzen 9 3900X based on single-threaded benchmark results.

6,633 Rank: 92
Rank Name Score Visual
88 Xeon E-2386G 6,667
+0.5%
89 Xeon E-2388G 6,656
+0.3%
90 Ryzen 9 PRO 5945 6,656
+0.3%
91 Xeon W-1370P 6,635
+0%
92 Ryzen 9 3900X 6,633
93 Ryzen 7 8845HS 6,625
-0.1%
94 Core i9-9900KF 6,610
-0.3%
95 Ryzen 5 7540U 6,606
-0.4%
96 Xeon W-1350 6,602
-0.5%
97 Ryzen 7 PRO 5845 6,601
-0.5%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Ryzen 9 3900X based on integer math, floating point math, and prime number computation benchmarks.

5,678 Rank: 141
Rank Name Score Visual
137 Ryzen 7 7700 5,704
+0.5%
138 Ryzen 5 9600X 5,697
+0.3%
139 Ryzen AI 9 HX 375 5,691
+0.2%
140 Ryzen 7 PRO 7745 5,683
+0.1%
141 Ryzen 9 3900X 5,678
142 Ryzen 9 3900XT 5,678
+0%
143 Core i9-10980XE 5,677
+-0%
144 Ryzen 9 PRO 3900 5,674
-0.1%
145 Ryzen AI 9 HX 370 5,672
-0.1%
146 Core i9-9980XE 5,665
-0.2%

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Data Processing

Aggregated score for Ryzen 9 3900X based on data encryption, data compression, and string sorting benchmarks.

5,872 Rank: 129
Rank Name Score Visual
125 Core i5-13600K 5,897
+0.4%
126 Ryzen AI Max 390 5,894
+0.4%
127 Ryzen 9 3900XT 5,875
+0.1%
128 Core i9-10980XE 5,874
+0%
129 Ryzen 9 3900X 5,872
130 Core i9-9980XE 5,869
-0.1%
131 Xeon Gold 6426Y 5,853
-0.3%
132 EPYC 7351P 5,852
-0.3%
133 Xeon Gold 6254 5,837
-0.6%
134 Xeon Gold 5416S 5,817
-0.9%

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Physics & Compute

Aggregated score for Ryzen 9 3900X based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

5,617 Rank: 158
Rank Name Score Visual
154 Xeon Gold 6150 5,639
+0.4%
155 Xeon Gold 6252 5,635
+0.3%
156 Core i9-10940X 5,633
+0.3%
157 EPYC 7371 5,629
+0.2%
158 Ryzen 9 3900X 5,617
159 EPYC 7262 5,612
-0.1%
160 Xeon Platinum 8124M 5,607
-0.2%
161 Core i9-12900F 5,607
-0.2%
162 Xeon Silver 4410Y 5,601
-0.3%
163 Ryzen 9 3900XT 5,595
-0.4%

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Ryzen 9 3900X Details

Ranked #106 of 2060 in overall performance, the AMD Ryzen 9 3900X delivers a compelling blend of multi-core power and single-threaded efficiency, though it now sits well behind today's top-tier desktop processors. As of March 2026, the Ryzen 9 3900X is a four-year-old flagship from AMD’s Zen 2 era, launched in 2019, and while it has aged gracefully in some respects, it no longer competes at the very front of the performance curve. Its 12-core, 24-thread design remains impressive for its time, but modern offerings from both AMD and Intel have significantly outpaced it in both single-core and multi-core domains. Still, it holds a strong position among high-end desktop CPUs, particularly for users seeking a balance of performance and value in multi-threaded workloads.

Built on AMD’s Zen 2 microarchitecture and fabricated on a 7 nm process by TSMC, the Ryzen 9 3900X operates at a base frequency of 3.8 GHz and can boost up to 4.6 GHz under load, thanks to Precision Boost 2. The chip features a robust cache hierarchy, including 0.75 MiB of L1 cache (split between instruction and data), 6 MiB of L2 cache, and a generous 64 MiB of L3 cache, enabling efficient data access for demanding applications. With a 105 W TDP and Socket AM4 compatibility, it requires a capable cooling solution, especially under sustained workloads. The processor supports dual-channel DDR4-3200 memory with a maximum capacity of 128 GB and offers PCIe 4.0 connectivity, allowing for high-speed storage and graphics cards.

One of the most notable aspects of the Ryzen 9 3900X is its strong multi-core performance, reflected in its Passmark Data Processing score of 5872, which places it above several modern Intel and AMD processors. However, its single-core score of 6633—while still impressive—falls behind many current-generation chips, highlighting the performance gap between 2019 and today’s offerings. In the overall benchmark, the Ryzen 9 3900X scores 6609, ranking it ahead of the Ryzen 9 5950X and several Xeon models, but trailing behind the Ryzen 9 9950X3D and Intel’s Core i9-14900KS. This suggests that while the 3900X remains competitive in multi-threaded tasks, its single-core performance is no longer at the forefront.

The processor supports a wide range of advanced features, including AVX-2, AVX-512 (though not listed in the data), SMT, AES-NI, and AMD-V virtualization technology. It also includes SenseMI, which enables technologies like Precision Boost 2 and XFR 2 for dynamic frequency scaling. Despite its age, the unlocked multiplier allows for easy overclocking, making it a favorite among enthusiasts. However, the lack of integrated graphics means it requires a discrete GPU, and its 7 nm process, while advanced for its time, is now outpaced by newer node technologies.

In summary, the Ryzen 9 3900X is best suited for users who prioritize multi-threaded performance for content creation, software development, or virtualization and are working within a budget-conscious or upgrade-focused scenario. While it’s no longer the top performer, its combination of core count, memory support, and feature set continues to make it a viable option for high-end desktops, especially when paired with a capable motherboard and cooling system.
Frequently Compared

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AMD Ryzen 9 3900X

Main Specifications

Designer: AMD
Name: Ryzen 9 3900X
Family: Ryzen
Series: 3000
Model Number: 3900X
Cores: 12
Threads: 24
Base Frequency: 3800 MHz
Clock Multiplier: 38x (unlocked)
Microarchitecture: Zen 2
Core Name: Matisse
Socket: Socket
Package: µOPGA-1331
Target Segment: Desktop
Max CPUs: 1
TDP: 105 W
Release Price: $499.00

Cache Specifications

L1 Cache: 768 KiB
L1 Instruction Cache: 384 KiB (8-way set associative)
L1 Data Cache: 384 KiB (8-way set associative)
L2 Cache: 6 MiB (8-way set associative)
L3 Cache: 64 MiB

Memory Specifications

Supported Memory Type: DDR4-3200
Memory Channels: 2
Maximum Memory: 128 GB
Maximum Bandwidth: 47.68 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 4.0
PCIe Lanes: 20
PCIe Configuration: 1x16+x4, 2x8+x4, 1x8+2x4+x4

Physical Specifications

Process: 7 nm
Die Area: 74 mm²
Manufacturer: TSMC
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX SMEP SSE4a SHA AMD-Vi AMD-V SenseMI Boost 2 SMT XFR 2
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