Sunny Cove (microarchitecture)

Last updated
Sunny Cove
General information
LaunchedSeptember 2019;23 months ago (September 2019)
Designed by Intel
Common manufacturer(s)
Cache
L1 cache 80 KiB per core
(32 instructions + 48 data)
Architecture and classification
Min. feature size Intel 10 nm FinFET process
Instruction set x86, x86-64
Extensions
Products, models, variants
Product code name(s)
History
Predecessor Palm Cove (mobile) Skylake (server)
Successor Willow Cove (mobile)
Golden Cove (server)

Contents

Sunny Cove is a codename for a CPU microarchitecture developed by Intel, first released in September 2019. It succeeds the Palm Cove microarchitecture and is fabricated using Intel's 10 nm process node. [1] The microarchitecture is implemented in 10th-generation Intel Core processors for mobile (codenamed "Ice Lake") and third generation Xeon scalable server processors (codenamed "Ice Lake-SP"). 10th-generation Intel Core mobile processors were released in September 2019, while the Xeon server processors were released in April 6, 2021. [2]

There are no desktop products featuring Sunny Cove. However, a variant named Cypress Cove is used for the 11th-generation Intel Core desktop processors (codenamed "Rocket Lake"). Cypress Cove is a version of the Sunny Cove microarchitecture backported to Intel's 14 nm process node. [3]

The direct successor to the Sunny Cove microarchitecture is the Willow Cove microarchitecture, which powers the 11th-generation Intel Core mobile processors. [4]

Features

Sunny Cove was designed by Intel Israel's processor design team in Haifa, Israel. [5] [6]

Intel released details of Ice Lake and its microarchitecture, Sunny Cove, during Intel Architecture Day in December 2018, stating that the Sunny Cove cores would be focusing on single-thread performance, new instructions, and scalability improvements. Intel stated that the performance improvements would be achieved by making the core "deeper, wider, and smarter". [7]

Sunny Cove features a 50% increase in the size of L1 data cache, larger L2 cache (size product dependent), larger μOP cache, and larger 2nd level TLB. The core has also increased in width, by increasing execution ports from 8 to 10 and by doubling the L1 store bandwidth. Allocation width has also increased from 4 to 5. The 5-level paging scheme supports a Linear Address space up to 57 bits and a physical address space up to 52 bits, increasing the virtual memory space to 128 petabytes, up from 256 terabytes, and the addressable physical memory to 4 petabytes, up from 64 terabytes. [8] [7]

Improvements

Cypress Cove

Cypress Cove
General information
LaunchedMarch 30, 2021;4 months ago (March 30, 2021)
Designed by Intel
Common manufacturer(s)
Cache
L1 cache 80 KB per core
(32 instructions + 48 data)
Architecture and classification
Min. feature size Intel 14 nm FinFET process
Extensions
Physical specifications
Socket(s)
Products, models, variants
Product code name(s)
History
Predecessor Skylake
Successor Golden Cove

Cypress Cove is a CPU microarchitecture based on the Sunny Cove microarchitecture designed for 10 nm, backported to 14 nm. It succeeds the Skylake microarchitecture, and is manufactured using Intel's 14 nm process node. Cypress Cove is identical to Sunny Cove, aside from a number of improvements and other changes. [15] Notably the L1 data cache latency has been reduced from 5 cycles that is on Sunny Cove to just 3 cycles on Cypress Cove. Intel claims an increase of 19% in IPC in Cypress Cove-based Rocket Lake processors compared to Comet Lake. [15] [16]

Cypress Cove is implemented on 11th Gen Intel Core desktop processors (codenamed "Rocket Lake"). Rocket Lake and its underlying microarchitecture were first described in November 2020, [3] and was later released on March 30, 2021. [17] [18]

SGX is removed from Rocket Lake.

Products

Sunny Cove powers the 10th generation of Intel Core mobile processors (codenamed "Ice Lake") and the third generation of Xeon Scalable server processors (codenamed "Ice Lake-SP"). Cypress Cove is implemented on 11th-generation Intel Core desktop processors (codenamed "Rocket Lake").

Related Research Articles

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Intel Core Mid-range to high-end central processing units

Intel Core are streamlined midrange consumer, workstation and enthusiast computers central processing units (CPU) marketed by Intel Corporation. These processors displaced the existing mid- to high-end Pentium processors at the time of their introduction, moving the Pentium to the entry level. Identical or more capable versions of Core processors are also sold as Xeon processors for the server and workstation markets.

Skylake (microarchitecture) CPU microarchitecture by Intel

Skylake is the codename used by Intel for a processor microarchitecture that was launched in August 2015 succeeding the Broadwell microarchitecture. Skylake is a microarchitecture redesign using the same 14 nm manufacturing process technology as its predecessor, serving as a "tock" in Intel's "tick–tock" manufacturing and design model. According to Intel, the redesign brings greater CPU and GPU performance and reduced power consumption. Skylake CPUs share their microarchitecture with Kaby Lake, Coffee Lake, Cannon Lake, Whiskey Lake, and Comet Lake CPUs.

Kaby Lake is Intel's codename for its seventh generation Core microprocessor family announced on August 30, 2016. Like the preceding Skylake, Kaby Lake is produced using a 14 nanometer manufacturing process technology. Breaking with Intel's previous "tick–tock" manufacturing and design model, Kaby Lake represents the optimized step of the newer process–architecture–optimization model. Kaby Lake began shipping to manufacturers and OEMs in the second quarter of 2016, and mobile chips have started shipping while Kaby Lake (desktop) chips were officially launched in January 2017.

The Xeon D is a brand of x86 system on a chip designed, manufactured, and marketed by Intel, targeted at the microserver market. It was announced in 2014, with the first products released in 2015. Related to the Xeon brand of workstation and server processors are based on the same architecture as server-grade CPUs, with support for ECC memory, higher core counts, support for larger amounts of RAM, larger cache memory. Unique to the Xeon D line, emphasis was also made on low power consumption, and integrated hardware blocks such as a network interface controllers, a PCI express root complex, and USB and SATA controllers.

Ice Lake is Intel's codename for the 10th generation Intel Core mobile and 3rd generation Xeon Scalable server processors based on the new Sunny Cove microarchitecture. Ice Lake represents an Architecture step in Intel's Process-Architecture-Optimization model. Produced on the second generation of Intel's 10 nm process, 10 nm+, Ice Lake is Intel's second microarchitecture to be manufactured on the 10 nm process, following the limited launch of Cannon Lake in 2018. However, Intel altered their naming scheme in 2020 for the 10 nm process. In this new naming scheme, Ice Lake's manufacturing process is called simply 10 nm, without any appended pluses.

Tiger Lake is Intel's codename for the 11th generation Intel Core mobile processors based on the new Willow Cove Core microarchitecture, manufactured using Intel's third-generation 10 nm process node known as 10SF. Tiger Lake replaces the Ice Lake family of mobile processors, representing an Optimization step in Intel's process–architecture–optimization model.

Coffee Lake Eighth-generation Intel Core microprocessor family

Coffee Lake is Intel's codename for its eighth generation Core microprocessor family, announced on September 25, 2017. It is manufactured using Intel's second 14 nm process node refinement. Desktop Coffee Lake processors introduced i5 and i7 CPUs featuring six cores and Core i3 CPUs with four cores and no hyperthreading.

Epyc

EPYC is a brand of x86-64 microprocessors designed and sold by AMD, based on the company's Zen microarchitecture. Introduced in June 2017, they are specifically targeted for the server and embedded system markets. Epyc processors share the same microarchitecture as their regular desktop-grade counterparts, but have enterprise-grade features such as higher core counts, more PCI Express lanes, support for larger amounts of RAM, and larger cache memory. They also support multi-chip and dual-socket system configurations by using Infinity Fabric interchip interconnect.

Sapphire Rapids is a codename for Intel's next generation Xeon server processors based on Intel 7, which is rebranded 10 Enhanced SuperFin process. Sapphire Rapids CPUs are designed for data centers; the roughly contemporary Alder Lake is intended for the wider public.

Process–architecture–optimization is a development model for central processing units (CPUs) that Intel adopted in 2016. Under this three-phase (three-year) model, every microprocessor die shrink is followed by a microarchitecture change and then by one or more optimizations. It replaced the two-phase (two-year) tick–tock model that Intel adopted in 2006. The tick–tock model was no longer economically sustainable, according to Intel, because production of ever smaller dies becomes ever more costly.

Comet Lake is Intel's codename for its 10th generation Core microprocessors. They are manufactured using Intel's third 14 nm Skylake process refinement, succeeding the Whiskey Lake U-series mobile processor and Coffee Lake desktop processor families. Intel announced low-power mobile Comet Lake-U CPUs on August 21, 2019, H-series mobile CPUs on April 2, 2020, desktop Comet Lake-S CPUs April 30, 2020, and Xeon W-1200 series workstation CPUs on May 13, 2020. Comet Lake processors and Ice Lake 10 nm processors are together branded as the Intel "10th Generation Core" family. Intel officially launched Comet Lake-Refresh CPUs on the same day as 11th Gen Core Rocket Lake launch. The low-power mobile Comet Lake-U Core and Celeron 5205U CPUs were discontinued on July 7, 2021.

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Cooper Lake is Intel's codename for the third-generation of their Xeon scalable processors, developed as the successor to Cascade Lake. Cascade Lake processors are targeted at the 4S and 8S segments of the server market; Ice Lake-SP serves the 1S and 2S segment.

Rocket Lake is Intel's codename for its 11th generation Core microprocessors. Released on March 30, 2021, it is based on the new Cypress Cove microarchitecture, a variant of Sunny Cove backported to Intel's 14 nm process node. Rocket Lake cores contain significantly more transistors than current Skylake-derived Comet Lake cores.

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. Intel officially launched Elkhart Lake platform with 10nm Tremont core on September 23, 2020. Intel officially launched Jasper Lake platform with 10nm Tremont core on January 11, 2021.

Alder Lake is Intel's codename for the 12th-generation of Intel Core processors based on a hybrid architecture utilizing Golden Cove high-performance cores and Gracemont power-efficient cores. Intel expects to launch Alder Lake in the last quarter of 2021. It is to be fabricated using Intel's Intel 7 process, previously referred to as Intel 10 nm Enhanced SuperFin (10ESF).

Willow Cove is a codename for a CPU microarchitecture developed by Intel and released on September 2020. Willow Cove is the successor to the Sunny Cove microarchitecture, and is fabricated using Intel's enhanced 10 nm process node called 10 nm SuperFin (10SF). The microarchitecture powers 11th-generation Intel Core mobile processors.

Golden Cove is a codename for a CPU microarchitecture developed by Intel and scheduled to be released in 2021. It will succeed three microarchitectures: Sunny Cove, Willow Cove, and Cypress Cove. It will be fabricated using Intel's 7 nm class process node called Intel 7, previously referred to as 10 nm Enhanced SuperFin (10ESF).

References

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