CPUs

Intel Core i7-7800X vs Intel Core i7-5820K Full Specs

6 Cores
12 Threads
3.5GHz
6 Cores
12 Threads
3.3GHz
TDP
140W
TDP
140W
Bandwidth
76.8GB/s
DDR4
Bandwidth
68.3GB/s
DDR4
Socket
Socket

6 Cores
6 Cores
12 Threads
12 Threads

Base Clock
3.5GHz
Base Clock
3.3GHz
Boost Clock
4GHz
Boost Clock
3.6GHz
Overclocking
Unlocked
Overclocking
Locked

L1i
32KB
L1i
32KB
L1d
32KB
L1d
32KB
L2
1MB
L2
256KB
L3
8.3MB
L3
15MB

Type
DDR4
Type
DDR4
Max Memory
128GB
Max Memory
64GB
ECC
No
ECC
No
Channels
4
Channels
4
Bus Width
256-bit
Bus Width
256-bit
Speed
2400MT/s
Speed
2133MT/s
Bandwidth
76.8GB/s
Bandwidth
68.3GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
76.8GB/s
Bandwidth Calculator
Channels
Transfer Rate
··
68.3GB/s

TDP
140W
TDP
140W
Max Operating Temp
100°C Max
Max Operating Temp
-
Included Cooler
0
Included Cooler
0

Bus Type
DMI
Bus Type
DMI
Bus Config
4 lanes
Bus Config
4 lanes
Bus Speed
8GT/s
Bus Speed
5GT/s
Bus Bandwidth
4GB/s
Bus Bandwidth
2.5GB/s

PCIe
PCIe 3.0 x28
27.6GB/sBandwidth
PCIe
PCIe 3.0 x28
27.6GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
Core i7 X 2016 branding
Branding
Core i7 2013 branding
Codename
Skylake-E
Skylake-SP-LCCVariant
Codename
Haswell-E
Haswell-E-LCCVariant
Market Segment
Workstation
Market Segment
Workstation
Release Date
Jun 19, 2017
Release Date
Aug 1, 2014

Foundry
Intel
Foundry
Intel
Fabrication Node
14nm
Fabrication Node
22nm
Die Size
322mm²
Die Size
354mm²
Transistor Count
5.5 Billion
Transistor Count
2.6 Billion
Transistor Density
17 MTr/mm²
Transistor Density
7 MTr/mm²