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AWS Graviton2
General Info
Designer	Annapurna Labs
Manufacturer	TSMC
Model Number	ALC12B00
Part Number	ALC12B00-AL-A0
Market	Server
Introduction	December 3, 2019 (announced) December 3, 2019 (launched)
General Specs
Family	Graviton
Frequency	2.5 GHz
Microarchitecture
ISA	ARMv8.2-A (ARM)
Microarchitecture	Neoverse N1
Core Name	Neoverse N1
Process	7 nm
Transistors	30,000,000,000
Technology	CMOS
Die	456.96 mm² 22.4 mm × 20.4 mm
Word Size	64 bit
Cores	64
Threads	64
Succession
Graviton 1 Graviton 3 Graviton 4

AWS Graviton 2 (Alpine ALC12B00) is a 64-core ARMv8 SoC designed by Amazon (Annapurna Labs) for Amazon's own infrastructure, serving as a successor to the original AWS Graviton.

The chip was first unveiled during Amazon's AWS re:Invent 2019 and has been in deployment for user access since early 2020.

These processors are offered as part of Amazon's EC2 M6g, C6g, and R6g instances.

The Graviton 2 features 64 Neoverse N1 on a mesh, all operating at 2.5 GHz.

See also: Annapurna Labs and Neoverse

Image

Cache

Main article: Neoverse N1 § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 8 MiB 8,192 KiB 8,388,608 B L1I$ 4 MiB 4,096 KiB 4,194,304 B 64x64 KiB     L1D$ 4 MiB 4,096 KiB 4,194,304 B 64x64 KiB     L2$ 64 MiB 65,536 KiB 67,108,864 B 0.0625 GiB     64x1 MiB     L3$ 32 MiB 32,768 KiB 33,554,432 B 0.0313 GiB     1x32 MiB

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-3200 Supports ECC Yes Controllers 2 Channels 8 Max Bandwidth 204.8 GB/s 190.735 GiB/s 195,312.5 MiB/s 204,800 MB/s 0.186 TiB/s 0.205 TB/s Bandwidth Single 25.6 GB/s Double 51.2 GB/s Quad 102.4 GB/s Octa 204.8 GB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
	PCIe Revision 4.0 Max Lanes 64 Configs x16, x8, x4

Die

• 7 nm process
• 30,000,000,000 transistors
• ~Die size
  • ~456.96 mm²
  • ~22.4 mm x ~20.4 mm

Models

• Graviton 1: 16 nm, 16× Cortex-A72 (ARMv8), @2.3GHz, a1.metal (Q4 2018)
• Graviton 2: 7 nm, 64× Neoverse N1 (ARMv8.2-A), 8× DDR4-3200, 2.5GHz, PCIe 4.0, r6g.metal (Q4 2019)
• Graviton 3: 5 nm, 64× Neoverse V1 (ARMv8.4-A), 8× DDR5-4800, 2.6GHz, PCIe 5.0, r7g.metal (Q4 2021)
• Graviton 4: 4 nm, 96× Neoverse V2 (ARMv9.0-A), 12× DDR5-5600, 2.8GHz, PCIe 5.0, r8g.metal-24xl (Q4 2023)