CPUs

AMD EPYC 3251 vs Intel Core i7-7740X Full Specs

8 Cores
16 Threads
2.5GHz
4 Cores
8 Threads
4.3GHz
TDP
55W
TDP
112W
Bandwidth
42.7GB/s
DDR4
Bandwidth
38.4GB/s
·
iGPU
0
iGPU
0
Socket
Socket

EPYC 3251EPYC 3251760
x1
Core i7-7740XCore i7-7740X1,550
x2.04

8 Cores
4 Cores
16 Threads
8 Threads

Base Clock
2.5GHz
Base Clock
4.3GHz
Boost Clock
3.1GHz
Boost Clock
4.5GHz
Overclocking
Locked
Overclocking
Unlocked

L1i
64KB
L1i
32KB
L1d
32KB
L1d
32KB
L2
512KB
L2
256KB
L3
16MB
L3
8MB

Type
DDR4
Type
·
Max Memory
64GB
Max Memory
64GB
ECC
Yes
ECC
No
Channels
2
Channels
2
Bus Width
128-bit
Bus Width
128-bit
Speed
2666MT/s
Speed
2400MT/s
Bandwidth
42.7GB/s
Bandwidth
38.4GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
42.7GB/s
Bandwidth Calculator
Channels
Transfer Rate
Calculated Bandwidth
38.4GB/s

TDP
55W
TDP
112W
Max Operating Temp
105°C Max
Max Operating Temp
100°C Max
Included Cooler
-
Included Cooler
0

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

PCIe
PCIe 3.0 x32
31.5GB/sBandwidth
PCIe
PCIe 3.0 x16
15.8GB/sBandwidth

Manufacturer
Manufacturer
ISA
x86-64
ISA
x86-64
Architecture
Architecture
Family
Family
Branding
EPYC 2017 branding
Branding
Core i7 X 2016 branding
Codename
Snowy Owl
ZeppelinDie
-
Codename
Kaby Lake-G
-
Kaby Lake-4C-GT2Variant
Market Segment
Embedded
Market Segment
Desktop
Release Date
Feb 1, 2018
Release Date
Jun 26, 2017

Foundry
GlobalFoundries
Foundry
Intel
Fabrication Node
14LP
Fabrication Node
14nm++
Die Size
213mm²
Die Size
125mm²
Transistor Count
4.8 Billion
Transistor Count
2.1 Billion
Transistor Density
23 MTr/mm²
Transistor Density
17 MTr/mm²

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