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AMD Zen 4 Raphael's Socket AM5 likely to be compatible with AM4 coolers, at least a 280 mm AIO recommended for Zen 4 170 W SKU

AMD Zen 4 Raphael LGA1718 Socket AM5 design. (Image Source: @TtLexington on Twitter)
AMD Zen 4 Raphael LGA1718 Socket AM5 design. (Image Source: @TtLexington on Twitter)
Leaked schematics of AMD's upcoming Socket AM5 for Zen 4 Raphael desktop processors indicate that AMD will use the same two-piece retention frame as current AM4 sockets in order to ensure cooler compatibility. Also being leaked is a datasheet that confirms Zen 4 will also see higher TDPs such as 120 W and 170 W with at least a 280 mm AIO cooler recommended for the 170 W TDP SKU.

AMD is expected to announce Zen 4 Raphael desktop parts some time in 2022. Zen 4 Raphael will feature a new Socket AM5 and support for DDR5 memory. Zen 4 will also see AMD transitioning to a land grid array (LGA) arrangement from the current pin grid array (PGA) layout. @TtLexington has now published drawings of the AM5 socket and also said that current AM4 cooling solutions may fit the upcoming socket.

This leak is more of a confirmation of previous AM5 socket renders by @ExecuFix, which showed a new locking mechanism that somewhat resembles Intel's HEDT sockets. The LGA1718 AM5 socket looks to use the same two-piece retention frame as the current AM4 socket, which should ensure compatibility with existing coolers.

Speaking of coolers, we had earlier reported that TDPs up to 170 W may be in the offing with Zen 4 Raphael. @TtLexington seems to have obtained a leaked datasheet that further confirms this information. We see TDPs of 45 W, 65 W, 95 W, 105 W, 120 W, and 170 W being listed. TDPs above 105 W are a first for mainstream Ryzen processors with even the current flagship 16-core 32-thread Ryzen 9 5950X rated at a 105 W TDP. 

The leaked datasheets also seem to recommend at least a 280 mm AIO cooler for the 170 W variant and at least a mid-sized air cooler for the 120 W SKU. We expect Zen 4 Raphael mainstream parts to top out at 16 cores just like their Vermeer cousins, so the increased TDP is somewhat intriguing. That being said, AMD is speculated to include integrated RDNA 2 graphics even in the mainstream desktop SKUs, so a relatively powerful iGPU could be the one contributing to increased TDP requirements.

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AMD Zen 4 Raphael LGA1718 Socket AM5 schematic. (Image Source: @TtLexington on Twitter)
AMD Zen 4 Raphael LGA1718 Socket AM5 schematic. (Image Source: @TtLexington on Twitter)
AMD Zen 4 Raphael LGA1718 Socket AM5 heat sink design parameters. (Image Source: @TtLexington on Twitter)
AMD Zen 4 Raphael LGA1718 Socket AM5 heat sink design parameters. (Image Source: @TtLexington on Twitter)
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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1586 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2021 08 > AMD Zen 4 Raphael's Socket AM5 likely to be compatible with AM4 coolers, at least a 280 mm AIO recommended for Zen 4 170 W SKU
Vaidyanathan Subramaniam, 2021-08-18 (Update: 2021-08-18)