AMD has made waves in the tech industry with the release of their latest laptop processor, the AMD Ryzen 9 7945HX3D. This chip is a game changer for the company, boasting their innovative 3D V-Cache technology that promises to revolutionize mobile gaming by enhancing frame rates. With the Ryzen 9 7945HX3D, AMD introduces a significant increase in L3 cache, resulting in heightened performance for most games.

It’s important to note that AMD has chosen to limit the 3D V-Cache technology to their top-of-the-line Zen 4 laptop chip. Additionally, this exclusive technology will only be currently available in partnership with Asus. The Asus ROG Strix Scar 17 X3D, set to launch on August 22nd, will be the sole laptop housing this cutting-edge processor. While some potential buyers may be disappointed with this exclusivity deal, it presents a unique opportunity for Asus to showcase their capabilities.

An Impressive Processor

The AMD Ryzen 9 7945HX3D processor closely resembles its predecessor, the Ryzen 9 7945HX, with one significant addition – a full 64MB of L3 cache bonded onto one of its eight-core chiplets. This additional cache not only offers increased performance but also maintains the same thermal design power (TDP) and clock speed of 5.4GHz. Although achieving the peak clock speed may only be possible on the chiplet without the extra L3 cache, the Ryzen 9 7945HX3D impresses with its performance, further enhanced by the added cache.

Adding extra cache to a gaming CPU, like the Ryzen 9 7945HX3D, plays a pivotal role in maximizing performance without consuming excessive power or requiring advanced cooling solutions. Games, along with other applications, heavily rely on low-latency access to large amounts of data. By placing this data as close as possible to the processing silicon, overall performance is significantly improved. When data is easily accessible in cache memory directly attached to the chip, processing delays are drastically reduced. In contrast, if the data is not found in the cache and needs to be retrieved from system memory (RAM), the process can take up to ten times longer. The additional cache provided by the 3D V-Cache technology in the Ryzen 9 7945HX3D ensures faster and smoother gaming experiences.

Impressive Performance Increase

According to AMD, the Ryzen 9 7945HX3D delivers an average gaming performance increase of approximately 15% compared to its non-3D V-Cache equivalent. In some cases, the improvement may be even more significant. Given the success of AMD’s 3D V-Cache technology in enhancing gaming performance across their Ryzen processors, it is surprising that they have chosen to limit the availability of the Ryzen 9 7945HX3D. Previously, the technology was introduced in the Ryzen 7 5800X3D and, more recently, the Ryzen 5 5600X3D, but both were available in limited quantities and exclusive locations.

While it may be disappointing that AMD has restricted the 3D V-Cache technology to a single 16-core, 32-thread chip for now, it is possible that this exclusive release is just the beginning. AMD may be using this opportunity to gauge the market’s response and explore the possibility of integrating the technology into future mobile processors. Laptops are ideal candidates for the performance boost offered by 3D V-Cache due to their lower thermal design power and clock speeds. As a result, users can expect higher frame rates and a more immersive gaming experience on upcoming AMD-powered laptops.

The Complexities of Implementation

It is essential to acknowledge the complexities associated with the implementation of 3D V-Cache technology. With only one of the Ryzen 9 7945HX3D’s compute chiplets (CCD) receiving the L3 cache upgrade, real-time cooperation between the chipset drivers and Windows is necessary to determine the optimal workload allocation. Workloads prioritizing higher clock speeds will be directed to the chiplet without the 3D V-Cache, while those requiring additional cache will be assigned to the upgraded chiplet. Despite these challenges, the desktop variant of the Ryzen 9 7950X3D has demonstrated promising performance, particularly in gaming applications. Enthusiasts eagerly await a more affordable eight-core laptop chip with a single CCD and the added benefits of 3D V-Cache.

The release of the AMD Ryzen 9 7945HX3D with its innovative 3D V-Cache technology marks a significant milestone for AMD. While potential buyers seeking alternative laptop options may be disappointed with the exclusivity deal with Asus, it presents a unique opportunity for Asus to showcase its capabilities. The increased L3 cache provided by the 3D V-Cache technology improves gaming performance by reducing data retrieval times. AMD’s commitment to pushing the boundaries of gaming CPUs through enhanced cache demonstrates their dedication to providing immersive gaming experiences. Hopefully, this exclusive release is simply the tip of the iceberg, and more exciting developments lie ahead in the world of mobile processors.


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