Cache is king when it comes to designing the gaming CPUs of the next 20 years

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Cache is king when it comes to designing the gaming CPUs of the next 20 years
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What will a gaming CPU look like in 20 years? We ask the experts.

. And neither is a slouch. You can only assume that a chip in 20 years will exponentially higher clocks and cache sizes.IEEE's International Roadmap for Devices and Systems 2022 Edition

"I mean it's amazing what they're having to do, and not just the main processor, but the graphics processor is also watercooled. And so I'm thinking, 'Okay, wow, that's kind of a brute force approach.' There is where the real challenge awaits for computer architects, creating bigger L1 cache memory with as low latency as achievable.It's about where your bottleneck exists. A CPU's role in playing a game isn't to create an image. That's what your GPU does. But your GPU isn't smart enough to process the engine's instructions. If your GPU is running at 1000 frames per second, your CPU has to be capable of delivering instructions at that same pace.

In a similar sense, more cores with more cache close by also helps solve the problem—providing your software can leverage it. Essentially, you're keeping the cache as low-latency as possible by retaining a smaller footprint close to each core, but increasing the number of cores.

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