Even though AMD has been quite tardy in introducing the whole Ryzen 7000 mobile CPU portfolio, some data surrounding a purported Ryzen 7 7840U have lately slipped out. It is anticipated that these chips will serve as low-power alternatives to the more expensive Ryzen 7040HS and HX lines. According to leaks, the processor will have a significantly higher clock speed than the top AMD Ryzen 9 6980HX while also having a lower power consumption.
There are now two processors that have been verified to be part of AMD’s low-power “U”lineup. These chips are the octa-core 7840U and the hexa-core Ryzen 5 7640U. As these low-power alternatives are currently being evaluated in software developed by a third party, the time that they will be made available to the public may not be far off.
Weibo, a Chinese technology publication, was the source of the original disclosure of the benchmark data. In comparison, the previous-generation Ryzen 9 6980HX only receives a score of 14,711 points. According to the benchmark aggregator CPU Monkey, the low-power processor comes extremely near to matching the performance of the Apple M2 Max, which receives around 14,855 points in the multi-core test.
Specifics on the future Ryzen 7 7840U, including a potential release window
It is anticipated that the AMD Ryzen 7 7840U and 7640U CPUs would be introduced some time around the latter part of the year 2023. These processors will be used to power high-end portable workstations that are ultra-thin and lightweight, and they will deliver decent performance without weighing more than two pounds. It is anticipated that the gadgets will be developed to compete with laptops on the market such as Apple’s M2-powered MacBooks.
Specifications
AMD has provided hints on the specifications of practically the entirety of the Ryzen 7000 mobile CPU family. Nevertheless, the high-performance and low-power Ryzen 7840U as well as the Ryzen 5 7640Us have not yet been introduced to the public. These chips will be equipped with the more powerful Radeon 780M and 760M iGPUs, which are far more powerful than the earlier GCN 5th gen-based graphics processors.
| CPU NAME | FAMILY | PROCESS NODE | ARCHITECTURE | CORES / THREADS | BASE / BOOST CLOCK | L3 CACHE | IGPU | IGPU CLOCK (NEW / OLD) | TDP |
|---|---|---|---|---|---|---|---|---|---|
| AMD Ryzen 7 7940HS/H | Phoenix-H | 4nm | Zen 4 | 8/16 | 4.0 / 5.2 GHz | 16 MB | Radeon 780M (RDNA 3 12 CU) | 2800 MHz / 3000 MHz | 35-45W |
| AMD Ryzen 7 7840HS/H | Phoenix-H | 4nm | Zen 4 | 8/16 | 3.8 / 5.1 GHz | 16 MB | Radeon 780M (RDNA 3 12 CU) | 2700 MHz / 2900 MHz | 35-45W |
| AMD Ryzen 5 7640HS/H | Phoenix-H | 4nm | Zen 4 | 6/12 | 4.3 / 5.0 GHz | 16 MB | Radeon 760M (RDNA 3 8 CU) | 2600 MHz / 2800 MHz | 35-45W |
| AMD Ryzen 7 7840U | Phoenix-U | 4nm | Zen 4 | 8/16 | 3.3 / TBD GHz | 16 MB | Radeon 780M (RDNA 3 12 CU) | TBD | 15-28W |
| AMD Ryzen 5 7640U | Phoenix-U | 4nm | Zen 4 | 6/12 | 3.5 / 4.9 GHz? | 16 MB | Radeon 760M (RDNA 3 8 CU) | TBD | 15-28W |
The expected level of performance
The performance data that was accidentally released suggests that the Ryzen 7 7840U will be one of the fastest CPUs available for laptops. The chip will have a performance that is somewhat lower than that of the Core i7 12700H, which achieves a score of 16,700 in the multi-core performance test of Cinebench R23. On the other hand, the 7840U has a lesser score on the benchmark than the more advanced 13980HX, which has around 30,500 points.
| Model | Cinebench R23 multi-core score |
| Intel Core i9 13980HX | 30,498 |
| Intel Core i9 12950HX | 23,019 |
| Intel Core i9 12900HX | 18,845 |
| AMD Ryzen 7 7745HX | 18,606 |
| Intel Core i9 12900HK | 18,197 |
| AMD Ryzen 7 7840HS | 16,845 |
| Intel Core i7 12700H | 16,745 |
| AMD Ryzen 7 7840U | 14,825 |
The 7840U is one of the processors that offers the best balance between performance and power consumption. In spite of having a power restriction of only 28W, its performance is outstanding, which is nothing short of astounding.
The future processors will present formidable opposition to whatever Intel has in store for this generation of computers. As soon as the HS range is introduced in April 2023, the low-power chip offerings will get under way.
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