CPU Comparison: AMD Ryzen 7 7840U vs AMD Ryzen 5 3450U

Key Findings

The AMD Ryzen 7 7840U leads in single-threaded performance by up to 88.7%
In multi-threaded workloads, the AMD Ryzen 7 7840U shows superior performance with a 270.9% advantage
The AMD Ryzen 7 7840U has the highest core count with 8 cores

Performance Rankings & Market Position

AMD Ryzen 7 7840U

Laptop

Release Date

Q2 2023

Market Position

467th fastest in multithreading

4890 CPUs246th fastest in single threading

4890 CPUs63rd fastest in

1434 Laptop CPUs

AMD Ryzen 5 3450U

Laptop

Release Date

Q4 2020

Market Position

1565th fastest in multithreading

4890 CPUs1629th fastest in single threading

4890 CPUs371st fastest in

1434 Laptop CPUs

Performance

Single-Thread Performance

7840U

3,602

3450U

1,909

Multi-Thread Performance

7840U

24,990

3450U

6,737

Specifications: AMD Ryzen 7 7840U vs AMD Ryzen 5 3450U

💻CPU Model

AMD Ryzen 7 7840U

7840U

AMD Ryzen 5 3450U

3450U

🔄Other Names

AMD Ryzen 7 7840U w/ Radeon 780M Graphics, AMD Ryzen 7 7840U w/ Radeon 780M Graphics, AMD Ryzen 7 7840U w/ Radeon(TM) 780M Graphics, AMD Ryzen 7 7840U with Radeon 780M Graphics

7840U

AMD Ryzen 5 3450U with Radeon Vega Mobile Gfx

3450U

⚡Base Clock

3.3 GHz

7840U

2.1 GHz

3450U

🚀Turbo Clock

5.1 GHz

7840U

3.5 GHz

3450U

💻Cores/Threads

8 Threads: 16

7840U

4 Threads: 8

3450U

🔌Socket

N/A

7840U

FP5

3450U

⚡TDP

30 W

7840U

15 W

3450U

💾Cache

L1 Instruction Cache: 8 x 32 KBL1 Data Cache: 8 x 32 KBL2 Cache: 8 x 1024 KBL3 Cache: 16 MB

7840U

L1 Instruction Cache: 4 x 64 KBL1 Data Cache: 4 x 32 KBL2 Cache: 4 x 512 KBL3 Cache: 4 MB

3450U

The AMD Ryzen 7 7840U and AMD Ryzen 5 3450U compete in the Laptop segment. The AMD Ryzen 7 7840U shows superior single-thread performance, making it better for tasks like gaming and light workloads.

For multi-threaded applications, the AMD Ryzen 5 3450U takes the lead, despite having the same core count.

Power consumption differs significantly, with the AMD Ryzen 7 7840U drawing more power under load (30W vs 15W). This may impact system thermal design and power supply requirements.