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Ok, I've replaced that interpretation with the underlying factual description (32MB TLB) and left the OP's word 'bottleneck' in there.

Perhaps there's an interesting discussion to be had about it?

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Thank you. Fair enough, there may be an interesting discussion lurking here somewhere about GPU architectures and rendering modes. However, Apple has been using this approach since the A11, so it is not new information. The OP assertion that Apple helped the WOW devs is probably also specious, since the app may have already been optimized (or close to it) for the architecture if they had been following Apple's GPU/Metal programming advice for the last few years. Caches always have limits and abusing those limits often has punitive results.

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