Tremont (microarchitecture)

Tremont is a microarchitecture for low-power Atom, Celeron and Pentium Silver branded processors used in systems on a chip (SoCs) made by Intel, it is the successor to Goldmont Plus.[2]

Tremont

General Info
Product code	80680
Architecture and classification
Architecture	Tremont x86
Instructions	MMX, AES-NI, CLMUL
Extensions	x86-64, Intel 64 SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, SHA VT-x
Physical specifications
Transistors	10 nm transistors
Cores	4–24
Products, models, variants
Model(s)	Atom
History
Predecessor	Goldmont Plus
Successor	Gracemont [1]

Design

Tremont is 3rd generation out-of-order low-power Atom microarchitecture designed for the entry level desktop and notebook computers. Tremont is built on the 10 nm manufacturing process and supports up to 24 cores.[3] It includes the Intel Gen11 graphics architecture from Ice Lake.

Tremont microarchitecture provides the following enhancements over Goldmont Plus:

• Enhanced branch prediction unit.
  • Increased capacity with improved path-based conditional and indirect prediction.
  • New committed Return Stack Buffer.
• Novel clustered 6-wide out-of-order front-end fetch and decode pipeline.
  • Banked ICache with dual 16B reads.
  • Two 3-wide decode clusters enabling up to 6 instructions per cycle.
• Deeper back-end out-of-order windows.
• 32KB data cache.
• Larger load and store buffers.
• Dual generic load and store execution pipes capable of 2 loads, 2 stores, or 1 load and 1 store per cycle.
• Dedicated integer and vector integer/floating point store data ports.
• New and improved cryptography.
  • New Galois-field instructions (GFNI).
  • Dual AES units.
  • Enhanced SHA-NI implementation.
  • Faster PCLMULQDQ.
• Support for user level low-power and low-latency spin-loop instructions UMWAIT/UMONITOR and TPAUSE.

Technology

• 10 nm manufacturing process
• SoC (System on a chip) architecture
• 3D tri-gate transistors
• 32 KiB L1 data cache, up from 24 KiB in Goldmont Plus
• 1.5 MB - 4.5 MB shared L2 cache per 4-core cluster, up from 4 MB in Goldmont Plus
• Gen 11 GPU[4][5] with DirectX 12, OpenGL 4.6, Vulkan 1.2, OpenGL ES 3.2 and OpenCL 2.1 support.
• 10 W thermal design power (TDP) desktop processors
•  6 W TDP mobile processors

List of Tremont processors

Mobile processors (Lakefield)

Pentacore Lakefield CPU consists of 1 "big" Sunny Cove core and 4 "little" Tremont cores.

Target segment	Cores (Threads)	Processor Branding & Model		GPU Model		TDP	CPU Clock rate		Graphics Clock rate		L2 Cache [MB]	Release Date	Price (USD)
							Base	Turbo	Normal	Turbo
Mobile	1+4 (5)	Core i5	L16G7	Intel UHD Graphics	64 EU	7 W	1.4 GHz	3.0 GHz	200 MHz	500 MHz	1.5 + 4   (L3)	Q2 2020	$281
Mobile	1+4 (5)	Core i3	L13G4	Intel UHD Graphics	48 EU	7 W	0.8 GHz	2.8 GHz	200 MHz	500 MHz	1.5 + 4   (L3)	Q2 2020

Server / network processors (Snow Ridge)

Target segment	Cores (Threads)	Processor Branding & Model		TDP	CPU Clock rate	L2 Cache [MB]	Release Date	Price (USD)
					Base
Server	8 (8)	Atom P	P5921B	? W	2.2 GHz	9	Q1 2020	$ ?
	12 (12)		P5931B			13.5
	16 (16)		P5942B			18
	24 (24)		P5962B			27

Source: Intel Atom® Processor P Series Product Specifications

See also

• List of Intel CPU microarchitectures
• List of Intel Pentium microprocessors
• List of Intel Celeron microprocessors
• List of Intel Atom microprocessors
• Atom (system on chip)

References

1. "Gracemont". Gracemont - Microarchitectures - Intel. WikiChip.org. Retrieved 29 March 2020.
2. "Intel Introduces Tremont Microarchitecture". Intel Newsroom.
3. Cutress, Dr Ian. "Intel's new Atom Microarchitecture: The Tremont Core in Lakefield". AnandTech. Retrieved 2019-10-24.
4. https://software.intel.com/sites/default/files/managed/db/88/The-Architecture-of-Intel-Processor-Graphics-Gen11_R1new.pdf
5. "Developer and Optimization Guide for Intel® Processor Graphics Gen11 API". software.intel.com. November 25, 2019.