Last updated on August 27th, 2023 at 08:43 pm
But for consumers, it won’t make a difference.
Some Lenovo laptops received unusual AMD processors. Lenovo Yoga Air 14S or Yoga Slim 7 Gen 8 models are based on Ryzen 7 7840S and Ryzen 5 7640S processors.
The company’s new laptops received exclusive Ryzen 7 7840S and Ryzen 5 7640S APUs
For consumers, these are the regular Ryzen 7 7840U and Ryzen 5 7640U, respectively. There is the same number of cores, the same iGPUs and, in general, exactly the same parameters. But technically the processors are different. The Ryzen 7 7840S and Ryzen 5 7640S models are FP8 and support the MIPI CSI protocol. In addition, the FP8 processors themselves are larger than usual ones. Actually, exactly the same difference between the APU Ryzen 7040HS and Ryzen 7040H.
So far, the Ryzen 7 7840S and Ryzen 5 7640S processors are only available in Lenovo laptops. The company on its website says that they were created in conjunction with AMD exclusively for Lenovo, so they probably will not appear in other laptops.
7840s vs 7840u
The AMD Ryzen 7 7840S and the Ryzen 7 7840U are both 8-core laptop processors that were released in early 2023. They are both based on the Zen 4 architecture and support hyperthreading (16 threads). The main difference between the two processors is their thermal design power (TDP). The Ryzen 7 7840S has a TDP of 35-54W, while the Ryzen 7 7840U has a TDP of 15-30W.
This means that the Ryzen 7 7840S can run at higher clock speeds than the Ryzen 7 7840U, but it also consumes more power. The Ryzen 7 7840S is also more expensive than the Ryzen 7 7840U.
Here is a table comparing the specifications of the AMD Ryzen 7 7840S and the Ryzen 7 7840U:
| Feature | Ryzen 7 7840S | Ryzen 7 7840U |
|---|---|---|
| Process node | 4nm | 4nm |
| Architecture | Zen 4 | Zen 4 |
| Cores | 8 | 8 |
| Threads | 16 | 16 |
| Base clock speed | 3.8 GHz | 3.3 GHz |
| Boost clock speed | 5.1 GHz | 5.1 GHz |
| TDP | 35-54W | 15-30W |
| Price | $399 | $349 |
So, which processor should you choose? If you need the best possible performance and don’t mind the extra power consumption, then the Ryzen 7 7840S is the better choice. However, if you are looking for a more power-efficient processor, then the Ryzen 7 7840U is a better option.
The AMD Ryzen 7 7840U and 7840S are both high-performance mobile processors based on the Zen 4 architecture. They have 8 cores and 16 threads, and they support up to 32GB of DDR5-5600 memory.
The main difference between the two processors is their thermal design power (TDP). The Ryzen 7 7840U has a TDP of 15-30W, while the Ryzen 7 7840S has a TDP of 35-54W. This means that the Ryzen 7 7840S can be clocked higher and offer more performance, but it will also consume more power and generate more heat.
Here is a table comparing the two processors:
| Feature | Ryzen 7 7840U | Ryzen 7 7840S |
|---|---|---|
| Cores | 8 | 8 |
| Threads | 16 | 16 |
| Base clock speed | 3.3 GHz | 3.8 GHz |
| Boost clock speed | 5.1 GHz | 5.1 GHz |
| TDP | 15-30W | 35-54W |
| Memory support | Up to 32GB DDR5-5600 | Up to 32GB DDR5-5600 |
In terms of performance, the Ryzen 7 7840S is slightly faster than the Ryzen 7 7840U. This is because it can be clocked higher and has a higher TDP. However, the Ryzen 7 7840U is still a very powerful processor, and it will be sufficient for most users.
The Ryzen 7 7840S is a good choice for users who need the best possible performance from their laptop. It is also a good choice for users who plan to use their laptop for demanding tasks, such as gaming or video editing.
The Ryzen 7 7840U is a good choice for users who want a powerful processor without sacrificing battery life. It is also a good choice for users who want a laptop that is not too hot or loud.
Ultimately, the best processor for you will depend on your individual needs and preferences.
Here is a summary of the pros and cons of the two processors:
Ryzen 7 7840S:
- Pros:
- Best possible performance
- Higher clock speeds
- More cores and threads
- Cons:
- More expensive
- Higher power consumption
Ryzen 7 7840U:
- Pros:
- More power efficient
- Less expensive
- Cons:
- Not as powerful as the Ryzen 7 7840S
- Fewer cores and threads
Ultimately, the best processor for you will depend on your specific needs and budget.
