LGA 2066

Last updated
LGA 2066
Socket 2066 IMGP5870 smial wp.jpg
Type LGA
Chip form factors Flip-chip land grid array (FCLGA)
Contacts2066
FSB protocol
Processors
  • Kaby Lake-X
  • Skylake-X
  • Skylake-W
  • Cascade Lake-X
  • Cascade Lake-W
Predecessor LGA 2011
Successor LGA 4189
Memory support DDR4

This article is part of the CPU socket series

LGA 2066, also called Socket R4, is a CPU socket by Intel that debuted with Skylake-X and Kaby Lake-X processors in June 2017. [1] It replaces Intel's LGA 2011-3 (R3) in the performance, high-end desktop and Workstation platforms (based on the X299 "Basin Falls" and C422 chipsets), while LGA 3647 (Socket P) replaces LGA 2011-3 (R3) in the server platforms based on Skylake-SP (Xeon "Purley").

Contents

Compatible processors

High-End Desktop (HEDT)

All of these CPUs require the Intel X299 chipset to work. So, the C422 chipset is strictly limited to work with workstation processors only.

Kaby Lake-X

Kaby Lake-X processors were discontinued in May 2018. Starting October 2019, BIOS updates for most of the X299-based motherboards removed support for Kaby Lake-X processors. [2]

NameCores

(threads)

Base

Clock

Turbo Boost 2.0Turbo
Boost

3.0

Memory
support
L2

cache

L3
cache
(MB)
PCIe

3.0
lanes

TDPRelease
date
Price
(USD)
Single coreAll cores
Core i5-7640X 4 (4)4.0 GHz4.2 GHz4.0 GHzN/A2 × DDR4-2666

up to 64 GB

256 KB

per core

616112 WQ2'17$242
Core i7-7740X 4 (8)4.3 GHz4.5 GHz8$339

Skylake-X 7000-series

NameCores

(threads)

Base

Clock

Turbo Boost 2.0Turbo
Boost

3.0

Memory
support
L2

cache

L3
cache
(MB)
PCIe

3.0
lanes

TDPRelease
date
Price
(USD)
Single coreAll cores
Core i7-7800X 6 (12)3.5 GHz4.0 GHzN/A4 × DDR4-2400

up to 128 GB

1 MB

per core

8.2528140 WQ2'17$389
Core i7-7820X 8 (16)3.6 GHz4.3 GHz4.0 GHz4.5 GHz4 × DDR4-2666

up to 128 GB

11$599
Core i9-7900X 10 (20)3.3 GHz13.7544$999
Core i9-7920X 12 (24)2.9 GHz3.8 GHz4.4 GHz16.5Q3'17$1199
Core i9-7940X 14 (28)3.1 GHz19.25165 W$1399
Core i9-7960X 16 (32)2.8 GHz4.2 GHz3.6 GHz22$1699
Core i9-7980XE 18 (36)2.6 GHz3.4 GHz24.75$1999

Skylake-X 9000-series

NameCores

(threads)

Base

Clock

Turbo Boost 2.0Turbo
Boost

3.0

Memory
support
L2

cache

L3
cache
(MB)
PCIe

3.0
lanes

TDPRelease
date
Price
(USD)
Single coreAll cores
Core i7-9800X 8 (16)3.8 GHz4.4 GHz4.5 GHz4 × DDR4-2666

up to 128 GB

1 MB

per core

16.544165 WQ4'18$589
Core i9-9820X 10 (20)3.3 GHz4.1 GHz4.2 GHz$889
Core i9-9900X 3.5 GHz4.4 GHz4.5 GHz19.25$989
Core i9-9920X 12 (24)$1189
Core i9-9940X 14 (28)3.3 GHz$1387
Core i9-9960X 16 (32)3.1 GHz22$1684
Core i9-9980XE 18 (36)3.0 GHz3.8 GHz24.75$1999

Cascade Lake-X

NameCores

(threads)

Base

Clock

Turbo Boost 2.0Turbo
Boost

3.0

Memory
support
L2

cache

L3
cache
(MB)
PCIe

3.0
lanes

TDPRelease
date
Price
(USD)
Single coreAll cores
Core i9-10900X 10 (20)3.7 GHz4.5 GHz4.3 GHz4.7 GHz4 × DDR4-2933

up to 256 GB

1 MB

per core

19.2548165WQ4'19$599
Core i9-10920X 12 (24)3.5 GHz4.6 GHz4.8 GHz$700
Core i9-10940X 14 (28)3.3 GHz4.1 GHz$797
Core i9-10980XE 18 (36)3.0 GHz3.8 GHz24.75$1000

Workstation

Take note that certain types of Xeon processors will not work on this socket, like Skylake-P.

Skylake-W

NameCores

(threads)

Base

Clock

Turbo Boost 2.0Memory
support
L2

cache [3]

L3
cache
(MB)
PCIe

3.0
lanes

TDPRelease
date
Price
(USD)
Single coreAll cores
Xeon W‑2102 4 (4)2.9 GHzN/A4 x DDR4‑2400

up to 512 GB

1 MB

per core

8.2548120 WQ3'17$202
Xeon W‑2104 3.2 GHz$255
Xeon W‑2123 4 (8)3.6 GHz3.9 GHz3.7 GHz4 × DDR4‑2666

up to 512 GB

$294
Xeon W‑2125 4.0 GHz4.5 GHz4.4 GHz$444
Xeon W‑2133 6 (12)3.6 GHz3.9 GHz3.8 GHz140 W$617
Xeon W‑2135 3.7 GHz4.5 GHz4.4 GHz$835
Xeon W‑2145 8 (16)3.7 GHz4.3 GHz11$1113
Xeon W‑2155 10 (20)3.3 GHz4.0 GHz13.75$1440
Xeon W‑2175 14 (28)2.5 GHz4.3 GHz3.3 GHz19.25Q4'17$1950
Xeon W‑2195 18 (36)2.3 GHz3.2 GHz24.75Q3'17$2553

Cascade Lake-W

NameCores

(threads)

Base

Clock

Turbo Boost 2.0Turbo

Boost 3.0

Memory
support
L2

cache [3]

L3
cache
(MB)
PCIe

3.0
lanes

TDPRelease
date
Price
(USD)
Single coreAll cores
Xeon W-2223 4 (8)3.6 GHz3.9 GHz3.7 GHzN/A4 × DDR4‑2666

up to 1  TB

1 MB

per core

8.2548120 WQ4'19$297
Xeon W-2225 4.1 GHz4.6 GHz4.5 GHz4 x DDR4-2933

up to 1 TB

105 W$444
Xeon W-2235 6 (12)3.8 GHz4.3 GHz130 W$555
Xeon W-2245 8 (16)3.9 GHz4.5 GHz4.5 GHz4.7 GHz16.5155 W$667
Xeon W-2255 10 (20)3.7 GHz4.3 GHz19.25165 W$778
Xeon W-2265 12 (24)3.5 GHz4.6 GHz4.8 GHz$944
Xeon W-2275 14 (28)3.3 GHz4.1 GHz$1112
Xeon W-2295 18 (36)3.0 GHz3.8 GHz24.75$1333

Related Research Articles

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LGA 2011

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References

  1. "First Intel Core X-Series Processors Pre-Orders Begin Today, Available Starting June 26". Intel Newsroom. Retrieved 2020-05-18.
  2. "X299 BIOS Update for Intel Cascade Lake-X Will Kill Kaby Lake-X Support".Tom's Hardware.
  3. 1 2 "Skylake-X's New L3 Cache Architecture". AnandTech.