Home / CPU Comparison / Intel Core i7-5820K or Intel Xeon E5-2667 v3: What's better?

Intel Core i7-5820K

vs

Intel Xeon E5-2667 v3

CPU Comparison Result

Below are the results of a comparison of Intel Core i7-5820K and Intel Xeon E5-2667 v3 processors based on key performance characteristics, as well as power consumption and much more.

Advantages

Intel Core i7-5820K

Newer PCI Express Version: Gen 3, 28 Lanes (CPU only) (Gen 3, 28 Lanes (CPU only) vs 3.0)

Intel Xeon E5-2667 v3

More Total Cores: 8 (6 vs 8)
Larger L3 Cache: 20 MB (15 MB (shared) vs 20 MB)
Newer Launch Date: September 2014 (September 2014 vs September 2014)

Basic

Intel

Label Name

Intel

September 2014

Launch Date

September 2014

Desktop

Platform

Server

Core i7-5820K

Model Name

E5-2667V3

Haswell-E

Code Name

Haswell

Core i7 (Haswell-E)

Generation

CPU Specifications

Total Cores

Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).

Total Threads

3.3 GHz

Basic Frequency

3.20 GHz

Intel Virtualization Technology (VT-x)

Yes

Intel Virtualization Technology for Directed I/O (VT-d)

Yes

up to 3.6 GHz

Max Turbo Frequency

3.60 GHz

Enhanced Intel SpeedStep Technology

Yes

Intel Hyper-Threading Technology

Yes

Intel Turbo Boost Technology

2.0

Intel Turbo Boost Technology 2.0 Frequency

3.60 GHz

64 KB (per core)

L1 Cache

256 KB (per core)

L2 Cache

15 MB (shared)

L3 Cache

20 MB

100 MHz

Bus Frequency

Cache

20 MB Intel® Smart Cache

Intel Socket 2011-3

CPU Socket

The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.

FCLGA2011

33.0x

Multiplier

Yes

Multiplier Unlocked

Intel AES New Instructions

Yes

22 nm

Technology

Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.

22 nm

140 W

TDP

135 W

Gen 3, 28 Lanes (CPU only)

PCI Express Version

PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.

3.0

Max Number of PCI Express Lanes

A PCI Express (PCIe) lane consists of two differential signaling pairs, one for receiving data, one for transmitting data, and is the basic unit of the PCIe bus. Max # of PCI Express Lanes is the total number of supported lanes.

Instruction Set

An instruction set architecture (ISA) defines the instructions a processor can execute. Common architectures include x86-64, ARM and RISC-V. The ISA determines software compatibility, while optional instruction extensions add specialized capabilities.

64-bit

Intel 64

Yes

Intel VT-x with Extended Page Tables (EPT)

Yes

PCI Express Configurations

PCI Express (PCIe) Configurations describe the available PCIe lane configurations that can be used to link to PCIe devices.

x4 | x8 | x16

2,600 million

Transistor Count

Memory Specifications

DDR4

Memory Type

DDR4 1600/1866/2133

Max Memory Size

Max memory size refers to the maximum memory capacity supported by the processor.

768 GB

Quad-channel

Memory Channels

The number of memory channels refers to the bandwidth operation for real world application.

Bus Speed

9.6 GT/s

Max Memory Bandwidth

Max Memory bandwidth is the maximum rate at which data can be read from or stored into a semiconductor memory by the processor (in GB/s).

68 GB/s

ECC Memory Support

ECC Memory Supported indicates processor support for Error-Correcting Code memory. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Note that ECC memory support requires both processor and chipset support.

Yes

Intel Flex Memory Access

Miscellaneous

Intel Standard Manageability (ISM)

Intel® AVX2

Execute Disable Bit

Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.

Yes

Intel OS Guard

Yes