CPU Comparison: AMD Ryzen 7 7840U vs AMD Ryzen 5 7640HS

Key Findings

  • All CPUs perform similarly in single-threaded tasks
  • In multi-threaded workloads, the AMD Ryzen 7 7840U shows superior performance with a 8.6% 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 7640HS

Laptop
Release Date
Q3 2023
Market Position
536th fastest in multithreading
4890 CPUs235th fastest in single threading
4890 CPUs87th fastest in
1434 Laptop CPUs

Performance

Single-Thread Performance

7840U
3,602
7640HS
3,632

Multi-Thread Performance

7840U
24,990
7640HS
23,006

Specifications: AMD Ryzen 7 7840U vs AMD Ryzen 5 7640HS

💻CPU Model
AMD Ryzen 7 7840U
7840U
AMD Ryzen 5 7640HS
7640HS
🔄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 7640HS w/ Radeon 760M Graphics, AMD Ryzen 5 7640HS with Radeon 760M Graphics
7640HS
⚡Base Clock
3.3 GHz
7840U
4.3 GHz
7640HS
🚀Turbo Clock
5.1 GHz
7840U
5.0 GHz
7640HS
💻Cores/Threads
8 Threads: 16
7840U
6 Threads: 12
7640HS
🔌Socket
N/A
7840U
FP7 FP7r2 FP8
7640HS
⚡TDP
30 W
7840U
54 W
7640HS
💾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: 6 x 32 KBL1 Data Cache: 6 x 32 KBL2 Cache: 6 x 1024 KBL3 Cache: 16 MB
7640HS

The AMD Ryzen 7 7840U and AMD Ryzen 5 7640HS compete in the Laptop segment. The AMD Ryzen 5 7640HS leads in single-thread performance, which is crucial for gaming and everyday tasks.

For multi-threaded applications, the AMD Ryzen 5 7640HS takes the lead, despite having the same core count.

Power consumption differs significantly, with the AMD Ryzen 5 7640HS drawing more power under load (54W vs 30W). This may impact system thermal design and power supply requirements.