Amazon AWS Graviton3 server CPU: triple-socket motherboard support

Amazon AWS Graviton3 instances hit GA: 55 billion transistors, up to 64 cores, 25%+ more performance vs Graviton2, and more.

@anthony256
Published Wed, May 25 2022 7:10 PM CDT   |   Updated Wed, Jun 15 2022 2:19 PM CDT

Amazon's new AWS Graviton3 CPU instances have reached Georgia, packing support for triple-sockets per motherboard: that's something you don't see every day.

Amazon AWS Graviton3 server CPU: triple-socket motherboard support 02 | TweakTown.com
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The new Amazon AWS Graviton3 CPU offer up to 64 cores, dual DDR5 memory chips, 55 billion transistors, and over 25% higher performance/core vs. the previous-gen Graviton2 CPU. Amazon is using 7 chiplets on the AWS Graviton3 CPU: 4 memory channels that have 2 x DDR5 channels each, and then 2 x PCIe Gen5 chiplets.

ServeTheHome reports that AWS says the monolithic die + chiplet DDR5 controllers have more consistent latency than chiplet-based CPUs like Intel's Sapphire Rapids (4 main compute dies) and AMD EPYC.

Amazon AWS Graviton3 server CPU: triple-socket motherboard support 03 | TweakTown.comAmazon AWS Graviton3 server CPU: triple-socket motherboard support 05 | TweakTown.com
Amazon AWS Graviton3 server CPU: triple-socket motherboard support 04 | TweakTown.com

I think the coolest thing here is that Amazon supports an interesting three sockets per server, after decades of 1, or 2, or 4 sockets per server... this is a nice change. The slide above shows the Graviton3 servers, well -- 3 x Graviton3 CPUs -- intro the Nitro networking interface.

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Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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