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Opteron A1120
General Info
Designer	AMD
Manufacturer	Global Foundries
Model Number	A1120
Part Number	OA1120ARD4NAD
Market	Server
Introduction	January 2014 (announced) January 2016 (launched)
Shop	Amazon
General Specs
Family	Opteron
Series	A1100
Frequency	1,700 MHz
Microarchitecture
ISA	ARMv8
Microarchitecture	Cortex-A57
Core Name	Seattle
Process	28 nm
Technology	CMOS
MCP	No
Word Size	64 bit
Cores	4
Max Memory	128 GiB
Electrical
TDP	25 W
Tjunction	0 °C – 80 °C
Packaging
Package	BGA-1021
Package Type	Organic Micro Ball Grid Array
Dimension	27 mm × 27 mm
Pitch	0.65 mm
Contacts	1021

Opteron A1120 is a 64-bit quad-core ARMv8 server microprocessor introduced by AMD in early 2016. This SoC is based on the Cortex-A57 microarchitecture and was fabricated on a GlobalFoundries 28 nm process. The A1120 has a TDP of 25 W with a core frequency of 1.7 GHz. It supports up to 128 GiB of dual channel DDR4-1866 memory.

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$ 320 KiB 327,680 B 0.313 MiB L1I$ 192 KiB 196,608 B 0.188 MiB 4 × 48 KiB 3-way set associative   L1D$ 128 KiB 131,072 B 0.125 MiB 4 × 32 KiB 2-way set associative   L2$ 2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB     2 × 1 MiB 16-way set associative   L3$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB       16-way set associative

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR3-1600, DDR4-1866 Supports ECC Yes Max Mem 128 GiB Controllers 2 Channels 2 Max Bandwidth 29.9 GB/s 27.847 GiB/s 28,514.862 MiB/s 29,900 MB/s 0.0272 TiB/s 0.0299 TB/s Bandwidth Single 14.9 GB/s Double 29.9 GB/s

Expansions

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 3.0 Max Lanes: 8 Configuration: x8, x4, x2

References

• "Product Brief: AMD Opteron™ A1100 SOC Series", PID 158465-B, 2016
• "Hot Chips 26: The AMD Opteron™ A1100 Processor Codenamed "Seattle"", August 11, 2014
• "Introducing the AMD Opteron™ A1100 for the Datacenter", January 2016