Comparison between Intel Core i5-8400 and Intel Core i7-6700
Both CPUs are manufactured by Intel.
Intel Core i7-6700 has a higher base speed of 3.4 GHz compared to Intel Core i5-8400's 2.8 GHz.
Both CPUs have the same turbo speed of 4.0 GHz.
Intel Core i5-8400 has more cores (6) compared to Intel Core i7-6700's 4 cores.
Intel Core i7-6700 supports more threads (8) compared to Intel Core i5-8400's 6 threads.
Both CPUs belong to the same class: Desktop.
Intel Core i5-8400 uses the FCLGA1151-2 socket, while Intel Core i7-6700 uses the LGA socket.
Intel Core i5-8400 was launched in Q4 2017, while Intel Core i7-6700 was launched in Q3 2015.
Intel Core i5-8400 has a larger L3 cache of 9 MB compared to Intel Core i7-6700's 8 MB.
Specification Summary
The Intel Core i5-8400 and Intel Core i7-6700 are two processors with distinct specifications. Below is a detailed comparison of their key features:
Manufacturer: Both processors are manufactured by Intel.
Speed: The Intel Core i5-8400 has a base speed of 2.8 GHz, while the Intel Core i7-6700 runs at 3.4 GHz.
Turbo Boost: The Intel Core i5-8400 supports a turbo speed of 4.0 GHz, compared to 4.0 GHz for the Intel Core i7-6700.
Cores: The Intel Core i5-8400 has 6 cores, while the Intel Core i7-6700 has 4 cores.
Threads: The Intel Core i5-8400 supports 6 threads, compared to 8 threads for the Intel Core i7-6700.
Class: Both processors are designed for Desktop use.
Socket: The Intel Core i5-8400 uses the FCLGA1151-2, while the Intel Core i7-6700 uses the LGA.
Launch Date: The Intel Core i5-8400 was launched on Q4 2017, while the Intel Core i7-6700 was released on Q3 2015.
L3 Cache: The Intel Core i5-8400 has 9 MB of L3 cache, compared to 8 MB for the Intel Core i7-6700.
Detailed Specifications:
Specs
Intel Core i5-8400
Intel Core i7-6700
Manufacturer
Intel
Intel
Speed
2.8 GHz
3.4 GHz
Turbo
4.0 GHz
4.0 GHz
Cores
6
4
Threads
6
8
Class
Desktop
Desktop
Socket
FCLGA1151-2
LGA
Launched
Q4 2017
Q3 2015
L3 Cache
9 MB
8 MB
Review:
Single Core Performance:
CPU Performance in single-threaded applications
Intel Core i5-8400:
39%
Intel Core i7-6700:
38%
* More is Better
Multi Core Performance:
CPU Performance in multi-threaded applications
Intel Core i5-8400
13%
Intel Core i7-6700:
11%
* More is Better
Power Efficiency:
Power Consumption of CPU under full load
Intel Core i5-8400: 65 watts
16.25%
Intel Core i7-6700: 65 watts
16.25%
* Lower is Better
Launched Date:
Time when the CPU was launched
Intel Core i5-8400 : Q4 2017 ✅
Intel Core i7-6700 : Q3 2015 ✅
* Newer is Better
CPU Launch FINAL SCORE:
CPU Final Rating Ratings
Intel Core i5-8400
Intel Core i7-6700
Pro's and Con's
Intel Core i5-8400 – Pros and Cons
Pros:
Newer Release: The Intel Core i5-8400 was launched more recently (Q4 2017) compared to the Intel Core i7-6700 (Q3 2015). This means it benefits from the latest advancements in technology, improved efficiency, and potentially better software optimization.
Faster Single-Core Performance: With a single-threaded performance score of 2380, the Intel Core i5-8400 outperforms the Intel Core i7-6700 (score: 2288). This makes it better suited for tasks that rely on single-core performance, such as gaming or everyday productivity.
Larger L3 Cache: The Intel Core i5-8400 features a larger L3 cache of 9MB compared to the Intel Core i7-6700's 8MB. A larger cache improves performance in memory-intensive tasks, such as video editing or 3D rendering, by reducing latency and speeding up data access.
Higher CPU Mark Score: The Intel Core i5-8400 has a higher CPU Mark score of 105.99 compared to the Intel Core i7-6700's 85.00. This indicates better overall performance across a wide range of tasks.
Cons:
Fewer Threads: The Intel Core i5-8400 has 6 threads, which is fewer than the Intel Core i7-6700's 8 threads. This may limit its ability to handle highly parallel workloads efficiently.
Intel Core i7-6700 – Pros and Cons
Pros:
Higher Base Clock Speed: The Intel Core i7-6700 has a higher base clock speed of 3.4 GHz compared to the Intel Core i5-8400's 2.8 GHz. This results in better performance for single-threaded tasks and general responsiveness.
Cons:
Fewer Cores: The Intel Core i7-6700 has 4 cores, which is fewer than the Intel Core i5-8400's 6 cores. This could impact performance in multi-threaded workloads, such as rendering, compiling code, or running virtual machines.
Lower Multi-Core Performance: In multi-threaded tasks, the Intel Core i7-6700 scores 8074, which is lower than the Intel Core i5-8400's score of 9235. This makes the Intel Core i5-8400 a better choice for heavy multitasking or parallel processing.
Productivity
Intel Core i5-8400
This cpu Handles Entry Level level office applications, web browsing, and media playback with ease.
It can also be used for Entry Level level multitasking or CPU-intensive tasks like video editing or 3D rendering.
Intel Core i7-6700
This cpu Handles Entry Level level office applications, web browsing, and media playback with ease.
It can also be used for Entry Level level multitasking or CPU-intensive tasks like video editing or 3D rendering.
Gaming
Intel Core i5-8400
Ideal for Entry Level level gaming (when paired with a dedicated GPU) and Entry Level level computing.
Intel Core i7-6700
Ideal for Entry Level level gaming (when paired with a dedicated GPU) and Entry Level level computing.
Verdict
Intel Core i5-8400
The Intel Core i5-8400 is a reliable and Entry Level processor for your PC builds. It delivers excellent value for users with Entry Level computing needs or those building a New PC.
Intel Core i7-6700
The Intel Core i7-6700 is a reliable and Entry Level processor for your PC builds. It delivers excellent value for users with Entry Level computing needs or those building a New PC.
