Meteor Lake

Intel Plans A New Era Of ‘Chiplet’-Based CPUs Beyond ‘Meteor Lake’

Meteor Lake

Intel previewed its future ‘Meteor Lake’ and ‘Arrow Lake’ processor families at Hot Chips 2022, which would employ numerous small tiles fused together to shatter monolithic chip design restrictions. Why little tiles matter.

Intel unveiled its 14th Generation “Meteor Lake” CPUs at Hot Chips 2022. Cutting-edge CPUs won’t launch soon. (We haven’t seen Intel’s 13th Generation “Raptor Lake” CPUs yet, but Meteor Lake will ship in 2023.) The information we’ve seen so far reveal a developing difference in current CPU design.

Starting with Meteor Lake (and “Arrow Lake,” its presumed 15th Generation Core family), Intel will use a “chiplet” design for its consumer processors, fusing together many tiny tiles that handle different functions. It’s a change from Intel’s “monolithic” architecture and might lead to faster, cheaper CPUs in the future.

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Monolithic CPU Die

The computer industry has always wanted deeper integration. Intel co-founder Gordon Moore created “Moore’s Law” in 1965, predicting a doubling of integrated circuit components per year. This hasn’t always been true, but it underscores the semiconductor industry’s need for integration.
In recent decades, CPUs have included floating point modules, cache, memory controllers, PCI Express controllers, video controllers, display controllers, and graphics processors. This has reduced manufacturing costs, electricity usage, and improved performance. It’s also caused corporations to face hurdles.

Chiplets may solve monolithic issues

Large monolithic chips pose three difficulties. First is chip yields.

Even a little flaw may cause a silicon chip to malfunction. This makes massive chip production expensive. Because a larger faulty chip wastes more fabrication time and resources.
Graphics processors and CPUs perform better when produced using their own optimised process technique. When integrating several components onto a single chip, you must employ the same manufacturing method. You must utilise a procedure that badly affects both or works well for one but not the other.

Last (but not least), closely connected components might hinder progress. When everything is baked together, it’s harder to alter one component, like the memory controller or video processor. After each modification, the whole chip must undergo a thorough verification procedure to assure proper operation. After then, the plant must update the design and work through current chips before commencing fresh manufacturing.

Using a chiplet design may alleviate or reduce these concerns. Sure, chips need to be inspected and verified, but you have more freedom in creating and upgrading them. Also, you’ll have less restrictions on chip fabrication processes. A fault on a smaller chip will cost less.
This adjustment can speed semiconductor development, cut costs, and increase performance. AMD’s Ryzen CPUs have long used chiplet architectures.

Why now? What might go wrong?

Why hasn’t Intel used chiplets earlier if they’re so beneficial? Yes, many times. Intel’s 2005 Pentium D processors employed a chiplet-like architecture to merge two CPU cores. First-generation Core “Arrandale” CPUs also had a chiplet-like architecture. It’s subsequently used chiplets in other goods.

The strongly connected processors in these architectures vary from Meteor Lake and Arrow Lake CPUs. Chiplets lack the interconnectedness of a single monolithic chip. Bandwidth suffers. This formerly impeded Intel’s (and AMD’s) performance, but it’s improved over time.
Older chiplets require more energy. As electricity needs change across generations, it’s hard to predict the future of this issue.

Meteor Lake CPU Chiplet

Intel’s “Ponte Vecchio” chip includes 47 tiles with 100 billion transistors. Intel’s future Meteor Lake and Arrow Lake CPUs will use the same connection technology. Meteor Lake has six parts, including the package substrate, which is presumably a PCB for attaching to the motherboard’s LGA socket.
CPU, GPU, and IO Extender are the remaining five titles. (The last will have a PCI Express controller.) Other tiles may be created by Taiwan Semiconductor Manufacturing Company (TSMC).

The memory controller is part of the “SOC” tile, which includes everything else. It’s the biggest tile and presumably contains a lot of capability, but don’t mistake it with a System-on-Chip (SoC) like a phone or TV, which also includes a CPU and GPU.
“Base Tile” will likely link the other elements like a breadboard. Ponte Vecchio also uses 36-micrometer Foveros Direct interconnects.

The Graphics Tile graphic shows the design’s adaptability. Intel may create tiles with variable resource quantities to make CPUs with different CPU cores, graphics cores, or other resources.
Some of the technologies are a step back from the traditional design. Components like the memory controller, which were originally part of the CPU, are now splitting off into distinct parts. We can’t dispute that chiplet designs show potential and may represent the future, since both AMD and Intel have adopted them.
Meteor Lake CPU specs and performance metrics may be delayed. Intel’s 13th Generation Raptor Lake chips are slated to emerge this autumn, while Meteor Lake won’t arrive until 2023. Arrow Lake won’t be discussed for even longer. Meanwhile, AMD’s chiplet-based innovation will evolve and revolutionise.

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