AMD Ryzen 9 3900X vs AMD Ryzen 5 3450U
CPU · Specs Compare
General Parameters
Release Date
Jul 2019
Jan 2020
Manufacturer
AMD
AMD
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Zen 2
Zen+
Integrated Graphics
N/A
Radeon Vega 8
Package
Transistor Count
3.8 billions
—
Manufacturing Process
7 nm
12 nm
Socket
AM4
FP5
Power Consumption
105 W
12-35 W
Peak Operating Temperature
95 °C
105 °C
CPU Performance
Performance Cores
12
4
Performance Core Threads
24
8
Performance Core Base Frequency
3.8 GHz
2.1 GHz
Performance Core Turbo Frequency
4.6 GHz
3.5 GHz
Total Core Count
12
4
Total Thread Count
24
8
Bus Frequency
100 MHz
100 MHz
Multiplier
38x
21x
L1 Cache
64 K per core
64 K per core
L2 Cache
512 K per core
512 K per core
L3 Cache
64 MB shared
4 MB shared
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR4-3200
DDR4-2400
Max Memory Size
128 GB
32 GB
Max Memory Channels
2
2
Max Memory Bandwidth
47.68 GB/s
38.4 GB/s
ECC Memory Support
Yes
—
Miscellaneous
PCIe Version
4.0
3.0
PCIe Lanes
16
12
Graphics Card Parameters
Integrated Graphics
—
true
GPU Base Frequency
—
300 MHz
GPU Max Dynamic Frequency
—
2400 MHz
Shader Units
—
512
Texture Units
—
32
Raster Operation Units
—
8
Execution Units
—
8
Power Consumption
—
65 W
Max Resolution
—
3840x2160 - 60 Hz
Benchmark
Cinebench R23
1,306
886
Cinebench R23
18,454
3,181
Geekbench 6
1,842
961
Geekbench 5
1,319
768
Geekbench 6
11,715
2,403
Geekbench 5
11,991
2,495
Cinebench 2024
78
—
Cinebench 2024
1,068
—
Passmark CPU
2,683
1,914
Passmark CPU
32,531
6,726
Blender
—
59
▲ Specs Compare
Data sourced from official specifications and benchmark tests.