CPU Comparison: AMD Ryzen 7 7840U vs Intel Core i7-3940XM @ 3.00GHz

Key Findings

The AMD Ryzen 7 7840U leads in single-threaded performance by up to 88.5%
In multi-threaded workloads, the AMD Ryzen 7 7840U shows superior performance with a 327.9% 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

Intel Core i7-3940XM @ 3.00GHz

Laptop

Release Date

Q4 2012

Market Position

1730th fastest in multithreading

4890 CPUs1622nd fastest in single threading

4890 CPUs414th fastest in

1434 Laptop CPUs

Performance

Single-Thread Performance

7840U

3,602

3.00GHz

1,911

Multi-Thread Performance

7840U

24,990

3.00GHz

5,840

Specifications: AMD Ryzen 7 7840U vs Intel Core i7-3940XM @ 3.00GHz

💻CPU Model

AMD Ryzen 7 7840U

7840U

Intel Core i7-3940XM @ 3.00GHz

3.00GHz

🔄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

Intel(R) Core(TM) i7-3940XM CPU @ 3.00GHz

3.00GHz

⚡Base Clock

3.3 GHz

7840U

3.0 GHz

3.00GHz

🚀Turbo Clock

5.1 GHz

7840U

3.9 GHz

3.00GHz

💻Cores/Threads

8 Threads: 16

7840U

4 Threads: 8

3.00GHz

🔌Socket

N/A

7840U

rPGA988B

3.00GHz

⚡TDP

30 W

7840U

55 W

3.00GHz

💾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 32 KBL1 Data Cache: 4 x 32 KBL2 Cache: 4 x 256 KBL3 Cache: 8 MB

3.00GHz

The AMD Ryzen 7 7840U and Intel Core i7-3940XM @ 3.00GHz 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 Intel Core i7-3940XM @ 3.00GHz takes the lead, despite having the same core count.

Power consumption differs significantly, with the Intel Core i7-3940XM @ 3.00GHz drawing more power under load (55W vs 30W). This may impact system thermal design and power supply requirements.