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Cascade Lake SP
skylake sp (basic).png
skylake-sp (hfi).png
Cascade Lake SP, with HFI
General Info
DesignerIntel
ManufacturerIntel
IntroductionMay 16, 2017 (announced)
December 2018 (launched)
Microarchitecture
ISAx86-64
MicroarchitectureCascade Lake
PlatformPurley
ChipsetLewisburg
Word Size
8 octets
16 nibbles
64 bit
Process14 nm
0.014 μm
1.4e-5 mm
TechnologyCMOS
Packaging
PackageFCLGA-3647 (FCLGA)
Dimension76.16 mm × 56.6 mm
Pitch0.8585 mm × 0.9906 mm
Contacts3647
SocketSocket P, LGA-3647
Succession

Cascade Lake SP (Cascade Lake Scalable Performance) is code name for Intel's series of server multiprocessors based on the Cascade Lake microarchitecture as part of the Purley platform serving as the successor to Skylake SP. These chips support up to 8-way multiprocessing, up to 28 cores, and incorporate a new AVX512 x86 extension for neural network / deep learning workloads, and introduces persistent memory support. Cascade Lake SP-based chips are manufactured on an enhanced 14nm++ process and utilize the Lewisburg chipset. Cascade Lake SP-based models are branded as the Xeon Bronze, Xeon Silver, Xeon Gold, and Xeon Platinum processor families.


Overview[edit]

Cascade Lake SP processors are based on Intel's Cascade Lake microarchitecture which brings a modest frequency improvement due to an enhancement process technology along with DL Boost, an extension designed to speed up machine learning algorithms. Those processors support between two and eight-way multi-processing (the exact support depends on the Xeon family) and with all models supporting hex-chanel ? GiB of DDR4 ECC memory or ? TiB for extended memory models. Cascade Lake also brings support for persistent memory.

As with Skylake SP, Cascade Lake SP processors utilize the new FCLGA-3647 package (which makes use of "Socket P"). Those use the Lewisburg chipset (HUB) via 4 PCIe3 lanes using Intel's proprietary Direct Media Interface 3.0 (DMI 3.0), allowing for 8 GT/s transfer rate per lane. When in multi-socket configuration, the microprocessor is connected to the other processors via the Ultra Path Interconnect (UPI) links which Intel introduced with Skylake SP as well, replacing and obsoleting the older QuickPath Interconnect (QPI) operating. Depending on the model, there may be either two or three UPI links inter-linking each socket (for more details see Cascade Lake § Scalability).

Common Features[edit]

All Cascade LAke SP processors have the following:

Models that are suffixed with "T" have extended lifetime (10 year use) guarantees and NEBS-friendly packing specification. Additionally, models that are suffixed with "F" (CSL-F) integrate the Omni-Path Host Fabric Interface (HFI) die on-package.


Cascade Lake SP Processors[edit]

Symbol version future.svg Preliminary Data! Information presented in this article deal with future products, data, features, and specifications that have yet to be finalized, announced, or released. Information may be incomplete and can change by final release.


 List of Cascade Lake SP-based Processors
 Main ProcessorCacheMemory
ModelFamilyPriceLaunchedCoresThreadsFrequencyMax TurboTDPL2$L3$Mem TypeMax Mem
 Multiprocessors (2-way)
 Multiprocessors (4-way)
5215Xeon GoldDecember 201810202.2 GHz
2,200 MHz
2,200,000 kHz
3.4 GHz
3,400 MHz
3,400,000 kHz
10 MiB
10,240 KiB
10,485,760 B
0.00977 GiB
13.75 MiB
14,080 KiB
14,417,920 B
0.0134 GiB
DDR4-2400
5220Xeon GoldDecember 201818362.2 GHz
2,200 MHz
2,200,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
18 MiB
18,432 KiB
18,874,368 B
0.0176 GiB
24.75 MiB
25,344 KiB
25,952,256 B
0.0242 GiB
DDR4-?
6230Xeon GoldDecember 201820402.1 GHz
2,100 MHz
2,100,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
20 MiB
20,480 KiB
20,971,520 B
0.0195 GiB
27.5 MiB
28,160 KiB
28,835,840 B
0.0269 GiB
DDR4-2666
6240Xeon GoldDecember 201818362.6 GHz
2,600 MHz
2,600,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
18 MiB
18,432 KiB
18,874,368 B
0.0176 GiB
24.75 MiB
25,344 KiB
25,952,256 B
0.0242 GiB
DDR4-2666
6240CXeon GoldDecember 201818362.6 GHz
2,600 MHz
2,600,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
18 MiB
18,432 KiB
18,874,368 B
0.0176 GiB
24.75 MiB
25,344 KiB
25,952,256 B
0.0242 GiB
DDR4-2666
6242Xeon GoldDecember 201816322.8 GHz
2,800 MHz
2,800,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
16 MiB
16,384 KiB
16,777,216 B
0.0156 GiB
22 MiB
22,528 KiB
23,068,672 B
0.0215 GiB
DDR4-2666
6252Xeon GoldDecember 201824482.1 GHz
2,100 MHz
2,100,000 kHz
3.7 GHz
3,700 MHz
3,700,000 kHz
24 MiB
24,576 KiB
25,165,824 B
0.0234 GiB
33 MiB
33,792 KiB
34,603,008 B
0.0322 GiB
DDR4-2666
6254Xeon GoldDecember 201818363.1 GHz
3,100 MHz
3,100,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
18 MiB
18,432 KiB
18,874,368 B
0.0176 GiB
24.75 MiB
25,344 KiB
25,952,256 B
0.0242 GiB
DDR4-2666
 Multiprocessors (8-way)
8260Xeon PlatinumDecember 201824482.4 GHz
2,400 MHz
2,400,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
24 MiB
24,576 KiB
25,165,824 B
0.0234 GiB
33 MiB
33,792 KiB
34,603,008 B
0.0322 GiB
DDR4-2666
8260CXeon PlatinumDecember 201824482.4 GHz
2,400 MHz
2,400,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
24 MiB
24,576 KiB
25,165,824 B
0.0234 GiB
33 MiB
33,792 KiB
34,603,008 B
0.0322 GiB
DDR4-2666
8260LXeon PlatinumDecember 201824482.4 GHz
2,400 MHz
2,400,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
24 MiB
24,576 KiB
25,165,824 B
0.0234 GiB
33 MiB
33,792 KiB
34,603,008 B
0.0322 GiB
DDR4-2666
8268Xeon PlatinumDecember 201824482.9 GHz
2,900 MHz
2,900,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
205 W
205,000 mW
0.275 hp
0.205 kW
24 MiB
24,576 KiB
25,165,824 B
0.0234 GiB
33 MiB
33,792 KiB
34,603,008 B
0.0322 GiB
DDR4-2666
8270Xeon PlatinumDecember 201826522.7 GHz
2,700 MHz
2,700,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
205 W
205,000 mW
0.275 hp
0.205 kW
26 MiB
26,624 KiB
27,262,976 B
0.0254 GiB
35.75 MiB
36,608 KiB
37,486,592 B
0.0349 GiB
DDR4-2666
8276Xeon PlatinumDecember 201828562.3 GHz
2,300 MHz
2,300,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
28 MiB
28,672 KiB
29,360,128 B
0.0273 GiB
38.5 MiB
39,424 KiB
40,370,176 B
0.0376 GiB
DDR4-2666
8276LXeon PlatinumDecember 201828562.3 GHz
2,300 MHz
2,300,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
28 MiB
28,672 KiB
29,360,128 B
0.0273 GiB
38.5 MiB
39,424 KiB
40,370,176 B
0.0376 GiB
DDR4-2666
8276MXeon PlatinumDecember 201828562.3 GHz
2,300 MHz
2,300,000 kHz
4 GHz
4,000 MHz
4,000,000 kHz
165 W
165,000 mW
0.221 hp
0.165 kW
28 MiB
28,672 KiB
29,360,128 B
0.0273 GiB
38.5 MiB
39,424 KiB
40,370,176 B
0.0376 GiB
DDR4-2666
8280Xeon PlatinumDecember 201828562.7 GHz
2,700 MHz
2,700,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
205 W
205,000 mW
0.275 hp
0.205 kW
28 MiB
28,672 KiB
29,360,128 B
0.0273 GiB
38.5 MiB
39,424 KiB
40,370,176 B
0.0376 GiB
DDR4-2666
8280LXeon PlatinumDecember 201828562.7 GHz
2,700 MHz
2,700,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
205 W
205,000 mW
0.275 hp
0.205 kW
28 MiB
28,672 KiB
29,360,128 B
0.0273 GiB
38.5 MiB
39,424 KiB
40,370,176 B
0.0376 GiB
DDR4-2666
8280MXeon PlatinumDecember 201828562.7 GHz
2,700 MHz
2,700,000 kHz
3.9 GHz
3,900 MHz
3,900,000 kHz
205 W
205,000 mW
0.275 hp
0.205 kW
28 MiB
28,672 KiB
29,360,128 B
0.0273 GiB
38.5 MiB
39,424 KiB
40,370,176 B
0.0376 GiB
DDR4-2666
Count: 19

See also[edit]

arrow up 1.svgPower/Performance

chipsetLewisburg +
designerIntel +
first announcedMay 16, 2017 +
first launchedDecember 2018 +
instance ofcore +
isax86-64 +
main imageFile:skylake sp (basic).png + and File:skylake-sp (hfi).png +
main image captionCascade Lake SP, with HFI +
manufacturerIntel +
microarchitectureCascade Lake +
nameCascade Lake SP +
packageFCLGA-3647 +
platformPurley +
process14 nm (0.014 μm, 1.4e-5 mm) +
socketSocket P + and LGA-3647 +
technologyCMOS +
word size64 bit (8 octets, 16 nibbles) +