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NNP-T 1400
NPU with 4 HBM2 stacks
General Info
Designer	Intel
Manufacturer	TSMC
Model Number	NNP-T 1400
Market	Server
Introduction	November 12, 2019 (announced) November 12, 2019 (launched)
Shop	Amazon
General Specs
Family	NNP
Series	NNP-T
Frequency	1,100 MHz
Microarchitecture
Microarchitecture	Spring Crest
Process	16 nm
Transistors	27,000,000,000
Technology	CMOS
Die	680 mm²
Cores	24
Max Memory	32 GiB
Multiprocessing
Interconnect	InterChip Link
Interconnect Links	16
Interconnect Rate	28 GT/s
Electrical
Power dissipation	175 W
Packaging
Package	FCBGA-3325 (FCBGA)
Dimension	60 mm × 60 mm
Contacts	3325

NNP-T 1400 is a neural processor designed by Intel Nervana and introduced in late 2019. Fabricated on TSMC 16 nm process based on the Spring Crest microarchitecture, the NNP-T 1400 has the full 24 TPCs enabled along with 60 MiB of scratchpad memory and operates at up to 1.1 GHz. This chip comes in an OAM accelerator card form factor and incorporates 32 GiB of HBM2 memory. This NPU exposes 16 inter-chip links for scale-out capabilities.

NNP-T 1300 Mezzanine Card.

Peak Performance

The NNP-T 1400 comes in an OCP OAM mezzanine card which enables support for various topologies including ring, hybrid cube mesh, and fully connected.

Cache

Main article: Spring Crest § Cache

• 55 MiB of tightly-coupled scratchpad memory
  • 22 x 2.5 MiB/core

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type HBM2-2400 Supports ECC Yes Max Mem 32 GiB Controllers 4 Channels 32 Max Bandwidth 1.2288 TB/s 1,144.409 GiB/s 1,171,875 MiB/s 1,228.8 GB/s 1,228,800 MB/s 1.118 TiB/s

Interconnect Topology

The NNP-T 1300 comes in a dual-slot standard PCIe 4.0 card which enables support for only the ring topology. Chips are interconnected using the 16 available inter-chip links.

Product Brief

• Intel NNP-T Product Brief