I'm surprised we didn't see these chips sooner.
has a default TDP of 55-75W, which means any concerns over the fragile nature of the TSV interconnects that link the chiplet and cache should be absent. Excessive voltage is an enemy of V-Cache, and this is of no concern with lower voltage mobile chips.
As to how successful these chips are will depend on the rest of the system. V-Cache models won't magically make GPU limited games at 4K run faster, but it will help at lower resolutions on systems with very high refresh rate screens. A system with a 7945HX3D, RTX 4090 and a 1080p screen is unlikely to be released, but at 1440p, a high end GPU delivering 240 FPS or higher is possible.
Of course stacked cache isn't beneficial for all games and applications. Some benefit more from clock speeds, and once the L3 cache fills, the system still needs to fall back to system memory. It'll be interesting to see how AMD tunes its turbo modes, chiplet software and driver to deliver optimal performance for all types of mobile workloads.Sign up to get the best content of the week, and great gaming deals, as picked by the editors.
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