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Intel Core i7-11700K vs Intel Core i7-5820K

Table of Contents



Overview:

Comparison between Intel Core i7-11700K and Intel Core i7-5820K

Both CPUs are manufactured by Intel. Intel Core i7-11700K has a higher base speed of 3.6 GHz compared to Intel Core i7-5820K's 3.3 GHz. Intel Core i7-11700K has a higher turbo speed of 5.0 GHz compared to Intel Core i7-5820K's 3.6 GHz. Intel Core i7-11700K has more cores (8) compared to Intel Core i7-5820K's 6 cores. Intel Core i7-11700K supports more threads (16) compared to Intel Core i7-5820K's 12 threads.

Both CPUs belong to the same class: Desktop. Intel Core i7-11700K uses the FCLGA1200 socket, while Intel Core i7-5820K uses the LGA2011-v3 socket. Intel Core i7-11700K was launched in Q4 2020, while Intel Core i7-5820K was launched in Q3 2014. Intel Core i7-11700K has a larger L3 cache of 16 MB compared to Intel Core i7-5820K's 15 MB.

Specification Summary

The Intel Core i7-11700K and Intel Core i7-5820K 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 i7-11700K has a base speed of 3.6 GHz, while the Intel Core i7-5820K runs at 3.3 GHz.
  • Turbo Boost: The Intel Core i7-11700K supports a turbo speed of 5.0 GHz, compared to 3.6 GHz for the Intel Core i7-5820K.
  • Cores: The Intel Core i7-11700K has 8 cores, while the Intel Core i7-5820K has 6 cores.
  • Threads: The Intel Core i7-11700K supports 16 threads, compared to 12 threads for the Intel Core i7-5820K.
  • Class: Both processors are designed for Desktop use.
  • Socket: The Intel Core i7-11700K uses the FCLGA1200, while the Intel Core i7-5820K uses the LGA2011-v3.
  • Launch Date: The Intel Core i7-11700K was launched on Q4 2020, while the Intel Core i7-5820K was released on Q3 2014.
  • L3 Cache: The Intel Core i7-11700K has 16 MB of L3 cache, compared to 15 MB for the Intel Core i7-5820K.

Detailed Specifications:

Specs Intel Core i7-11700K Intel Core i7-5820K
Intel Intel
Manufacturer Intel Intel
Speed 3.6 GHz 3.3 GHz
Turbo 5.0 GHz 3.6 GHz
Cores 8 6
Threads 16 12
Class Desktop Desktop
Socket FCLGA1200 LGA2011-v3
Launched Q4 2020 Q3 2014
L3 Cache 16 MB 15 MB

Review:

Single Core Performance:


CPU Performance in single-threaded applications

Intel Core i7-11700K:



56%
Intel Core i7-5820K:
33%
* More is Better

Multi Core Performance:


CPU Performance in multi-threaded applications

Intel Core i7-11700K



35%
Intel Core i7-5820K:
14%
* More is Better

Power Efficiency:


Power Consumption of CPU under full load

Intel Core i7-11700K: 125 watts



31.25%
Intel Core i7-5820K: 140 watts
35%
* Lower is Better

Launched Date:


Time when the CPU was launched


Intel Core i7-11700K : Q4 2020 ✅

Intel Core i7-5820K : Q3 2014 ✅

* Newer is Better

CPU Launch FINAL SCORE:

CPU Final Rating Ratings

Intel Core i7-11700K



Intel Core i7-5820K


Pro's and Con's

Intel Core i7-11700K – Pros and Cons

Pros:

  • Newer Release: The Intel Core i7-11700K was launched more recently (Q4 2020) compared to the Intel Core i7-5820K (Q3 2014). This means it benefits from the latest advancements in technology, improved efficiency, and potentially better software optimization.
  • Higher Base Clock Speed: The Intel Core i7-11700K has a higher base clock speed of 3.6 GHz compared to the Intel Core i7-5820K's 3.3 GHz. This results in better performance for single-threaded tasks and general responsiveness.
  • Higher Turbo Boost Speed: The Intel Core i7-11700K supports a higher turbo boost speed of 5.0 GHz compared to the Intel Core i7-5820K's 3.6 GHz. This allows for better performance during peak workloads.
  • Faster Single-Core Performance: With a single-threaded performance score of 3400, the Intel Core i7-11700K outperforms the Intel Core i7-5820K (score: 1992). 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 i7-11700K features a larger L3 cache of 16MB compared to the Intel Core i7-5820K's 15MB. 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 i7-11700K has a higher CPU Mark score of 95.44 compared to the Intel Core i7-5820K's 70.75. This indicates better overall performance across a wide range of tasks.

Cons:

  • Not available

Intel Core i7-5820K – Pros and Cons

Pros:

  • Not available

Cons:

  • Fewer Cores: The Intel Core i7-5820K has 6 cores, which is fewer than the Intel Core i7-11700K's 8 cores. This could impact performance in multi-threaded workloads, such as rendering, compiling code, or running virtual machines.
  • Fewer Threads: The Intel Core i7-5820K has 12 threads, which is fewer than the Intel Core i7-11700K's 16 threads. This may limit its ability to handle highly parallel workloads efficiently.
  • Lower Multi-Core Performance: In multi-threaded tasks, the Intel Core i7-5820K scores 9835, which is lower than the Intel Core i7-11700K's score of 24552. This makes the Intel Core i7-11700K a better choice for heavy multitasking or parallel processing.
  • Higher Power Consumption: The Intel Core i7-5820K has a higher TDP of 140W compared to the Intel Core i7-11700K's 125W. This means it may consume more power, leading to higher energy costs and potentially more heat generation, which could require better cooling solutions.


Productivity


Intel Core i7-11700K
This cpu Handles Mid Level level office applications, web browsing, and media playback with ease. It can also be used for Mid Level level multitasking or CPU-intensive tasks like video editing or 3D rendering.

Intel Core i7-5820K
This cpu Handles Mid Level level office applications, web browsing, and media playback with ease. It can also be used for Mid Level level multitasking or CPU-intensive tasks like video editing or 3D rendering.


Gaming

Intel Core i7-11700K
Ideal for Mid Level level gaming (when paired with a dedicated GPU) and Mid Level level computing.

Intel Core i7-5820K
Ideal for Mid Level level gaming (when paired with a dedicated GPU) and Mid Level level computing.



Verdict

Intel Core i7-11700K

The Intel Core i7-11700K is a reliable and Mid Level processor for your PC builds. It delivers excellent value for users with Mid Level computing needs or those building a New PC.

Intel Core i7-5820K

The Intel Core i7-5820K is a reliable and Mid Level processor for your PC builds. It delivers excellent value for users with Mid Level computing needs or those building a New PC.