Home Comparison AMD Ryzen 3 5400U vs AMD Ryzen 5 PRO 8645HS

AMD Ryzen 3 5400U vs AMD Ryzen 5 PRO 8645HS

We compared two laptop CPUs: AMD Ryzen 3 5400U with 4 cores 2.6GHz and AMD Ryzen 5 PRO 8645HS with 6 cores 4.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 3 5400U 's Advantages
Lower TDP (25W vs 54W)
AMD Ryzen 5 PRO 8645HS 's Advantages
Released 3 years and 3 months late
Higher specification of memory (7500 vs 4266)
Larger memory bandwidth (89.6GB/s vs 51.2GB/s)
Newer PCIe version (4 vs 3.0)
Higher base frequency (4.3GHz vs 2.6GHz)
Larger L3 cache size (16MB vs 8MB)
More modern manufacturing process (4nm vs 7nm)

Score

Benchmark

Geekbench 6 Single Core
AMD Ryzen 3 5400U
1639
AMD Ryzen 5 PRO 8645HS +51%
2478
Geekbench 6 Multi Core
AMD Ryzen 3 5400U
4483
AMD Ryzen 5 PRO 8645HS +129%
10306
VS

General Parameters

Jan 2021
Release Date
Apr 2024
AMD
Manufacturer
AMD
Laptop
Type
Laptop
x86-64
Instruction Set
-
Cezanne
Core Architecture
Hawk Point
FP6
Socket
AMD Socket FP7
Radeon RX Vega 6
Integrated Graphics
Radeon 760M
-
Generation
Ryzen 5 (Zen 4 (Hawk Point))

Package

-
Transistor Count
25 billions
7 nm
Manufacturing Process
4 nm
10-25 W
Power Consumption
35-54 W
105 °C
Peak Operating Temperature
-
-
Foundry
TSMC
-
Die Size
178 mm²

CPU Performance

4
Performance Cores
6
8
Performance Core Threads
12
2.6 GHz
Performance Core Base Frequency
4.3 GHz
4 GHz
Performance Core Turbo Frequency
5 GHz
4
Total Core Count
6
8
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
26x
Multiplier
43.0
64 K per core
L1 Cache
64 KB per core
512 K per core
L2 Cache
6 MB
8 MB shared
L3 Cache
16 MB
No
Unlocked Multiplier
No
-
SMP
1

Memory Parameters

DDR4-3200, LPDDR4-4266
Memory Types
DDR5-5600,LPDDR5x-7500
32 GB
Max Memory Size
256 GB
2
Max Memory Channels
2
51.2 GB/s
Max Memory Bandwidth
89.6 GB/s
No
ECC Memory Support
Yes

Graphics Card Parameters

true
Integrated Graphics
true
1600 MHz
GPU Max Dynamic Frequency
2600 MHz
384
Shader Units
-
24
Texture Units
-
8
Raster Operation Units
-
-
Execution Units
8
15 W
Power Consumption
-

AI Accelerator

-
NPU
AMD Ryzen™ AI
-
Theoretical performance
16 TOPS

Miscellaneous

3.0
PCIe Version
4
12
PCIe Lanes
20

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