AMD Ryzen 9 3900X vs AMD Ryzen 9 9900X3D
We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and AMD Ryzen 9 9900X3D with 12 cores 4.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD Ryzen 9 3900X Advantages
Lower TDP (105W vs 120W)
AMD Ryzen 9 9900X3D Advantages
Released 5 years and 6 months late
Integrated graphics card
Higher specification of memory (5600 vs 3200)
Larger memory bandwidth (89.6GB/s vs 47.68GB/s)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (4.4GHz vs 3.8GHz)
Larger L3 cache size (128MB vs 64MB)
More modern manufacturing process (4nm vs 7nm)
Score
Benchmark
Cinebench R23 Single Core
AMD Ryzen 9 3900X
1306
AMD Ryzen 9 9900X3D
+67%
2188
Cinebench R23 Multi Core
AMD Ryzen 9 3900X
18454
AMD Ryzen 9 9900X3D
+107%
38334
Geekbench 6 Single Core
AMD Ryzen 9 3900X
1842
AMD Ryzen 9 9900X3D
+77%
3271
Geekbench 6 Multi Core
AMD Ryzen 9 3900X
11715
AMD Ryzen 9 9900X3D
+64%
19229
Cinebench 2024 Single Core
AMD Ryzen 9 3900X
78
AMD Ryzen 9 9900X3D
+79%
140
Cinebench 2024 Multi Core
AMD Ryzen 9 3900X
1068
AMD Ryzen 9 9900X3D
+97%
2114
General Parameters
Jul 2019
Release Date
Jan 2025
AMD
Manufacturer
Amd
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Zen 2
Core Architecture
Zen 5 (Granite Ridge)
-
Processor Number
9900X3D
AM4
Socket
AM5
N/A
Integrated Graphics
Radeon Graphics
-
Generation
Ryzen 9 (Zen 5 (Granite Ridge))
Package
3.8 billions
Transistor Count
16.63 billions
7 nm
Manufacturing Process
4 nm
105 W
Power Consumption
120 W
-
Max Turbo Power Consumption
230 W
95 °C
Peak Operating Temperature
95 °C
-
Foundry
TSMC
-
Die Size
2x70.6 mm²
-
I/O Process Size
6 nm
-
I/O Die Size
122 mm²
CPU Performance
12
Performance Cores
12
24
Performance Core Threads
24
3.8 GHz
Performance Core Base Frequency
4.4 GHz
4.6 GHz
Performance Core Turbo Frequency
5.5 GHz
12
Total Core Count
12
24
Total Thread Count
24
100 MHz
Bus Frequency
100 MHz
38x
Multiplier
43
64 K per core
L1 Cache
80 K per core
512 K per core
L2 Cache
1 MB per core
64 MB shared
L3 Cache
128 MB shared
Yes
Unlocked Multiplier
Yes
-
SMP
1
Memory Parameters
DDR4-3200
Memory Types
DDR5-5600
128 GB
Max Memory Size
192 GB
2
Max Memory Channels
2
47.68 GB/s
Max Memory Bandwidth
89.6 GB/s
Yes
ECC Memory Support
Yes
Graphics Card Parameters
-
Integrated Graphics
true
-
GPU Base Frequency
MHz
-
GPU Max Dynamic Frequency
2200 MHz
-
Execution Units
2
