AMD: CXL also in desktop chips in three to five years

AMD: CXL also in desktop chips in three to five years


from Maximilian Hohm
According to the latest Meet the Experts webinar, AMD wants to be able to offer Compute eXpress Link, a manufacturer-independent memory technology, in three to five years. For this, hardware requirements must be met and at the same time the increased bandwidths of PCI-E 5.0 and later 6.0 are ideal for this. Read more about this below.

As part of the Meet-the-Experts webinars, AMD typically presents innovations in hardware and software to a broader audience. Sometimes this is crucial and anticipated information like the new AM5 chipsets just before the release of the AM5 platform and sometimes there are surprising innovations. AMD’s following announcement should also fall into the latter category. According to this, the Californians now want to bring the CXL memory technology to desktop CPUs in three to five years.

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Compute eXpress Link (CXL) is intended to improve performance, ensure lower latencies and simplify memory expansion by adding other storage media to the same pool as the system DRAM. You can think of it as expanding memory with an SSD as a cache, although that’s an oversimplification. However, unlike Intel’s Optane, which was not able to establish itself and has since been discontinued, CXL should enjoy broad support across manufacturers.

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Both AMD and Intel are working on this together with other manufacturers. The CXL specifications are an open standard that is primarily intended to be used as a cache between the CPU, main memory and other accelerators such as graphics cards. Due to the protocol, however, the actual implementation is relatively complicated and requires hardware implementation in the components. The first CXL-capable processors are AMD’s Epyc Genoa and Intel’s Sapphire Rapids, which implement the concept around PCI-E 5.0.

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The newer revisions, which are still in the development phase, are said to already be based on PCI-E 6.0 and support other features such as memory pooling and sharing. AMD’s new server chips will already be available on November 10th. expected, while Intel intends to introduce the new processors early next year. Since AMD has not given an exact date for the corresponding compatibility in desktop chips, a release should not be expected before 2024, when the PCI-E 6.0 devices are expected.

Source: Tom’s hardware

Reference-www.pcgameshardware.de