The Radeon RX 7900M turned out to be slower than
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The Radeon RX 7900M turned out to be slower than the mobile GeForce RTX 4080 and the laptop with it showed disgusting battery life

AMD last month introduced its flagship mobile gaming graphics card, the Radeon RX 7900M, as well as the first laptop equipped with it, the Alienware m18. The latter also received the flagship Ryzen 9 7945HX processor with 16 cores and 32 threads. The Notebookcheck portal received this device and carried out initial gaming tests. The new product showed very high performance but mediocre autonomy.

    Image source: VideoCardz

Image source: VideoCardz

For AMD, the Radeon RX 7900M graphics card is the first graphics accelerator in the Radeon x900 class based on the RDNA architecture in the mobile segment. The market for high-performance mobile gaming systems has long been dominated by solutions based on Intel processors and NVIDIA graphics cards. In recent years, AMD has begun to quickly catch up to the competition thanks to its Ryzen processor series. One of the latest innovations, the flagship Ryzen 9 7945HX3D with 16 cores, 32 virtual threads and additional 3D V-cache memory, has left the competition from Intel far behind. The next step for AMD was a logical attempt to enter the high-performance mobile graphics segment where NVIDIA dominates.

This attempt became possible with the release of the Radeon RX 7900M mobile accelerator, which uses a Navi 31 graphics chip with 4608 stream processors and 16 GB of GDDR6 memory. This powerful gaming graphics card has a TDP of up to 180 W. Tests of the Alienware m18 laptop equipped with Ryzen 9 7945HX and Radeon RX 7900M show that although the laptop can offer high processor and graphics performance, it still falls short when it comes to gaming Competitors lag behind.

    CPU performance of the AMD-based Alienware m18 laptop.  Image source: Notebookcheck

CPU performance of the AMD-based Alienware m18 laptop. Image source here and below: Notebookcheck

The performance of the AMD mobile graphics included in the Alienware m18 varies from game to game. In the synthetic benchmarks, the Radeon RX 7900M was the clear leader, but in games, at least those that Notebookcheck selected for testing, it generally lagged behind the mobile GeForce RTX 4080, especially in scenarios with ray tracing.

    Gaming performance (FPS) of the Alienware m18 with Ryzen 9 7945HX and Radeon RX 7900M

Gaming performance (FPS) of the Alienware m18 with Ryzen 9 7945HX and Radeon RX 7900M

Another point to consider is productivity and content creation tools, which are much better supported at the driver level by the GeForce platform, the review says.

    AMD based Alienware m18 GPU performance

AMD based Alienware m18 GPU performance

The AMD-based Alienware m18 has a number of flaws that Dell and its gaming brand Alienware need to address. First of all, the test report states that the notebook has problems connecting external monitors. In this case, the screen of the laptop itself turns black. The situation can only be resolved by a complete reboot. This is obviously a software problem, but one that urgently needs a solution. In addition, the AMD-based Alienware m18 has various “minor” bugs and errors related to things like laptop loading, frame drops during video playback, stuttering in games, excessive idle power consumption, and more.

    Power consumption in different modes

Power consumption in different modes

The autonomy of the AMD-based Alienware m18 generally takes a back seat. The Radeon RX 7900M graphics card consumes a lot of power, which negatively affects the battery life of the device. When using the same browser, the battery life is only 85 minutes, which is less than the Intel-based Alienware m18, which has a battery life of 260 minutes under the same conditions.

    Working hours.  In the table below the value is given in minutes

Laptop operating times. In the table below the value is given in minutes

When idle, the AMD-based Alienware m18 system consumes at least 30W, which is quite a bit. The biggest problem with this laptop in terms of power consumption is the standby (sleep) mode, where the system consumes up to 25.6W, while the typical value here should be 1 or 2W. For this reason, the reviewer called the AMD-based Alienware m18 “Table system with emergency battery”, and not the usual laptop. However, even desktop PCs don’t use as much power in sleep mode.

“The laptop’s power consumption in sleep mode is not optimized, which is one of the main reasons for the system’s poor battery life. We sometimes noticed 101W of power consumption without any apps running, even in Balanced Power mode. The energy consumption in sleep mode was also very high and amounted to 25 W, although it should have been closer to 1-2 W.”writes Notebookcheck.

While the AMD-based Alienware m18 offers better CPU performance than the competition at a significantly lower cost than the Intel-based system with GeForce RTX 4080, potential buyers of this laptop should take note of the “features” mentioned in the article. Notebook check review. The obvious advantage of the AMD-based Alienware m18 is its price of $2,499 (for the Ryzen 9 7945HX and Radeon RX 7900M configuration). For comparison, the same laptop model but with an Intel Core i9-13980HX and a GeForce RTX 4080 now costs $2849. Dell also plans to eventually release a variant of the Alienware m18 with the Ryzen 9 7945HX3D, but there are no details on that system yet.

About the author

Johnson Smith

Johnson Smith is interested in Home Theater & Audio, Smart Tech, Google News & Products, How To, Apple News & Products, Cell Phones, Automotive Technology.

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