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Asus ROG Strix Scar 17: AMD Announces First Laptop Processor with 3D V-Cache Technology

AMD has officially introduced the AMD Ryzen 9 7945HX3D, the first laptop processor to feature their advanced 3D V-Cache technology. This new chip is set to significantly enhance gaming performance by utilizing a larger amount of L3 cache.

However, there is a catch. AMD is limiting the 3D V-Cache technology to their highest-spec Zen 4 laptop chip and exclusively partnering with Asus for the release of the Asus ROG Strix Scar 17 X3D. The laptop is expected to launch on August 22nd this year.

The Ryzen 9 7945HX3D is similar to the Ryzen 9 7945HX laptop processor but comes with the full 64MB of L3 cache bonded on top of one of its eight-core chiplets. It has a TDP of 55-75W and a peak clock speed of 5.4GHz.

The addition of extra cache to a processor, or graphics card, is an effective way for manufacturers to boost performance without increasing energy consumption or requiring additional cooling. By having data closer to the processing silicon, applications, especially games, can access it more quickly, resulting in higher performance.

AMD claims that compared to the non-3D V-Cache equivalent, the Ryzen 9 7945HX3D can deliver an average gaming performance increase of around 15%. The impact can be even greater in certain cases.

While AMD's 3D V-Cache technology has proven successful in improving gaming performance, it has been sparingly used. The Ryzen 7 5800X3D was the first chip to have it, followed by limited releases of the Ryzen 5 5600X3D. The exclusivity deals and limited availability raise questions about AMD's approach.

Despite this, the exclusive partnership for the Asus ROG Strix Scar 17 X3D may indicate a testing phase for future mobile processors to incorporate the 3D V-Cache technology. Laptops, with their lower TDPs and clock speeds, can benefit more from the added performance boost provided by the larger L3 cache.

However, there are complexities involved in utilizing this technology. Only one compute chiplet (CCD) in the Ryzen 9 7945HX3D is receiving the L3 cache increase, requiring chipset drivers and Windows to determine which workloads are assigned to each chiplet. Ideally, a more affordable eight-core laptop chip with one CCD and the extra 3D V-Cache would be ideal for maximizing gaming performance.