AMD Athlon II X4 638 Quad-Core vs AMD FX-770K Quad-Core
Table of Contents
Overview:
Comparison between AMD Athlon II X4 638 Quad-Core and AMD FX-770K Quad-Core
Both CPUs are manufactured by AMD.
AMD FX-770K Quad-Core has a higher base speed of 3.5 GHz compared to AMD Athlon II X4 638 Quad-Core's 2.7 GHz.
AMD FX-770K Quad-Core has a higher turbo speed of 3.9 GHz compared to AMD Athlon II X4 638 Quad-Core's GHz.
Both CPUs have the same number of cores (4).
AMD Athlon II X4 638 Quad-Core supports more threads (4) compared to AMD FX-770K Quad-Core's threads.
Both CPUs belong to the same class: Desktop.
AMD Athlon II X4 638 Quad-Core uses the FM1 socket, while AMD FX-770K Quad-Core uses the FM2+ socket.
AMD Athlon II X4 638 Quad-Core was launched in Q2 2015, while AMD FX-770K Quad-Core was launched in Q4 2014.
Both CPUs have the same L3 cache size of MB.
Specification Summary
The AMD Athlon II X4 638 Quad-Core and AMD FX-770K Quad-Core are two processors with distinct specifications. Below is a detailed comparison of their key features:
Manufacturer: Both processors are manufactured by AMD.
Speed: The AMD Athlon II X4 638 Quad-Core has a base speed of 2.7 GHz, while the AMD FX-770K Quad-Core runs at 3.5 GHz.
Turbo Boost: The AMD Athlon II X4 638 Quad-Core supports a turbo speed of GHz, compared to 3.9 GHz for the AMD FX-770K Quad-Core.
Cores: The AMD Athlon II X4 638 Quad-Core has 4 cores, while the AMD FX-770K Quad-Core has 4 cores.
Threads: The AMD Athlon II X4 638 Quad-Core supports 4 threads, compared to threads for the AMD FX-770K Quad-Core.
Class: Both processors are designed for Desktop use.
Socket: The AMD Athlon II X4 638 Quad-Core uses the FM1, while the AMD FX-770K Quad-Core uses the FM2+.
Launch Date: The AMD Athlon II X4 638 Quad-Core was launched on Q2 2015, while the AMD FX-770K Quad-Core was released on Q4 2014.
L3 Cache: The AMD Athlon II X4 638 Quad-Core has MB of L3 cache, compared to MB for the AMD FX-770K Quad-Core.
Detailed Specifications:
Specs
AMD Athlon II X4 638 Quad-Core
AMD FX-770K Quad-Core
Manufacturer
AMD
AMD
Speed
2.7 GHz
3.5 GHz
Turbo
GHz
3.9 GHz
Cores
4
4
Threads
4
Class
Desktop
Desktop
Socket
FM1
FM2+
Launched
Q2 2015
Q4 2014
L3 Cache
MB
MB
Review:
Single Core Performance:
CPU Performance in single-threaded applications
AMD Athlon II X4 638 Quad-Core:
19%
AMD FX-770K Quad-Core:
24%
* More is Better
Multi Core Performance:
CPU Performance in multi-threaded applications
AMD Athlon II X4 638 Quad-Core
3%
AMD FX-770K Quad-Core:
4%
* More is Better
Power Efficiency:
Power Consumption of CPU under full load
AMD Athlon II X4 638 Quad-Core: 65 watts
16.25%
AMD FX-770K Quad-Core: 65 watts
16.25%
* Lower is Better
Launched Date:
Time when the CPU was launched
AMD Athlon II X4 638 Quad-Core : Q2 2015 ✅
AMD FX-770K Quad-Core : Q4 2014 ✅
* Newer is Better
CPU Launch FINAL SCORE:
CPU Final Rating Ratings
AMD Athlon II X4 638 Quad-Core
AMD FX-770K Quad-Core
Pro's and Con's
AMD Athlon II X4 638 Quad-Core – Pros and Cons
Pros:
Not available
Cons:
Lower Multi-Core Performance: In multi-threaded tasks, the AMD Athlon II X4 638 Quad-Core scores 2250, which is lower than the AMD FX-770K Quad-Core's score of 3060. This makes the AMD FX-770K Quad-Core a better choice for heavy multitasking or parallel processing.
AMD FX-770K Quad-Core – Pros and Cons
Pros:
Newer Release: The AMD FX-770K Quad-Core was launched more recently (Q4 2014) compared to the AMD Athlon II X4 638 Quad-Core (Q2 2015). This means it benefits from the latest advancements in technology, improved efficiency, and potentially better software optimization.
Higher Base Clock Speed: The AMD FX-770K Quad-Core has a higher base clock speed of 3.5 GHz compared to the AMD Athlon II X4 638 Quad-Core's 2.7 GHz. This results in better performance for single-threaded tasks and general responsiveness.
Higher Turbo Boost Speed: The AMD FX-770K Quad-Core supports a higher turbo boost speed of 3.9 GHz compared to the AMD Athlon II X4 638 Quad-Core's GHz. This allows for better performance during peak workloads.
Faster Single-Core Performance: With a single-threaded performance score of 1468, the AMD FX-770K Quad-Core outperforms the AMD Athlon II X4 638 Quad-Core (score: 1163). This makes it better suited for tasks that rely on single-core performance, such as gaming or everyday productivity.
Higher CPU Mark Score: The AMD FX-770K Quad-Core has a higher CPU Mark score of NA compared to the AMD Athlon II X4 638 Quad-Core's 35.79. This indicates better overall performance across a wide range of tasks.
Cons:
Fewer Threads: The AMD FX-770K Quad-Core has threads, which is fewer than the AMD Athlon II X4 638 Quad-Core's 4 threads. This may limit its ability to handle highly parallel workloads efficiently.
Productivity
AMD Athlon II X4 638 Quad-Core
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.
AMD FX-770K Quad-Core
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
AMD Athlon II X4 638 Quad-Core
Ideal for Entry Level level gaming (when paired with a dedicated GPU) and Entry Level level computing.
AMD FX-770K Quad-Core
Ideal for Entry Level level gaming (when paired with a dedicated GPU) and Entry Level level computing.
Verdict
AMD Athlon II X4 638 Quad-Core
The AMD Athlon II X4 638 Quad-Core 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.
AMD FX-770K Quad-Core
The AMD FX-770K Quad-Core 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.
