CPU Comparison: AMD Ryzen 7 7840S vs Intel Core Ultra 7 155H

Key Findings

All CPUs perform similarly in single-threaded tasks
Multi-threaded performance is comparable among all CPUs
The AMD Ryzen 7 7840S has the highest core count with 8 cores

Performance Rankings & Market Position

AMD Ryzen 7 7840S

Laptop

Release Date

Q3 2023

Market Position

494th fastest in multithreading

4890 CPUs219th fastest in single threading

4890 CPUs72nd fastest in

1434 Laptop CPUs

Intel Core Ultra 7 155H

Laptop

Release Date

Q3 2023

Market Position

465th fastest in multithreading

4890 CPUs274th fastest in single threading

4890 CPUs62nd fastest in

1434 Laptop CPUs

Performance

Single-Thread Performance

7840S

3,685

155H

3,521

Multi-Thread Performance

7840S

24,309

155H

25,070

Specifications: AMD Ryzen 7 7840S vs Intel Core Ultra 7 155H

💻CPU Model

AMD Ryzen 7 7840S

7840S

Intel Core Ultra 7 155H

155H

🔄Other Names

AMD Ryzen 7 7840S with Radeon 780M Graphics

7840S

Intel(R) Core(TM) Ultra 7 155H, Intel Core Ultra 7 155H

155H

⚡Base Clock

3.8 GHz

7840S

N/A

155H

🚀Turbo Clock

5.1 GHz

7840S

N/A

155H

💻Cores/Threads

8 Threads: 16

7840S

N/A

155H

🔌Socket

FP7 FP7r2 FP8

7840S

FCBGA2049

155H

⚡TDP

54 W

7840S

28 W

155H

💾Cache

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

7840S

L1 Instruction Cache: 6 x 64 KBL1 Data Cache: 6 x 48 KBL2 Cache: 9 x 2048 KBL3 Cache: 24 MB

155H

The AMD Ryzen 7 7840S and Intel Core Ultra 7 155H compete in the Laptop segment. The AMD Ryzen 7 7840S shows superior single-thread performance, making it better for tasks like gaming and light workloads.

For multi-threaded applications, the Intel Core Ultra 7 155H takes the lead, despite having the same core count.

Power consumption differs significantly, with the AMD Ryzen 7 7840S drawing more power under load (54W vs 28W). This may impact system thermal design and power supply requirements.