Reviews of ASUS ROG Strix Scar 17 appeared on the Internet the other day – the first and so far the only laptop with the first mobile processor with additional 3D V-Cache cache memory – the flagship 16-core Ryzen 9 7945HX3D. Reviewers claim that this is the world’s fastest mobile gaming processor.
The Ryzen 9 7945HX3D processor has 16 cores with support for 32 virtual threads and runs up to 5.4 GHz. The chip’s base frequency is 2.3 GHz, which is 200 MHz lower than the regular version of the Ryzen 9 7945HX. The Ryzen 9 7945HX3D has a dynamic TDP of 55W to 75W. The chip received 128MB of 3D V-Cache cache memory on one of the CCD chiplets, officially copying this feature from older Ryzen 7000X3D desktop processors. The latter are only equipped with 96 MB 3D V cache, the regular L3 cache is 32 MB. The mobile chip also includes two execution units of the integrated Radeon 610M graphics based on the RDNA 2 architecture.
For Ryzen 7000X3D processors, AMD has released a special PPM Provision Driver and a 3D V-Cache Performance Optimizer utility, which, in combination with the game mode of the Windows operating system, are responsible for the distribution of threads among cores and CCDs, determining which chiplet is used Has additional cache memory 3D V-Cache or without it – must be used in a specific task.
The reviews of the ASUS ROG Strix Scar 17 with Ryzen 9 7945HX3D can be counted on one hand. Apparently AMD and ASUS decided to make test samples of laptops available to a very limited number of reviewers. The latter, in turn, came to the consensus that the Ryzen 9 7945HX3D was the best mobile processor for gaming. Especially at 1080p resolution.
However, when using the QHD resolution, the chip’s performance drops somewhat. And the use of the CCD processor chiplet with 3D V-Cache as the main chip shows lower performance than CCD without additional cache memory, according to a publication of the portal. AnandTech.
For games with 4K resolution, additional cache memory does not bring any advantage, since the performance is limited by the performance of the mobile graphics card, as the portal’s test results show. Notebook check in the diagrams below.
Unfortunately, none of the sources have given the exact cost of the ASUS ROG Strix Scar 17 laptop with the Ryzen 9 7945HX3D processor. However, given that the exact same laptop model in the same configuration but with a Ryen 9 7945HX processor without 3D V-cache is offered for around $3,000, the Ryzen 9 7945HX3D version will likely be in the range Observers assume that they will be between 3,200 and 3,500 US dollars.