Intel Core i9 9940X vs AMD EPYC Embedded 2655
CPU Specs Compare
General Parameters
Release Date
Oct 2018
Dec 2025
Manufacturer
Intel
AMD
Type
Desktop
Server
Instruction Set
x86-64
-
Core Architecture
Skylake
Grado
Processor Number
i9-9940X
-
Integrated Graphics
N/A
Radeon Graphics
Generation
-
EPYC (Zen 5 (Grado))
Package
Manufacturing Process
14 nm
4 nm
Socket
LGA-2066
AMD Socket FL1
Power Consumption
165 W
55 W
Peak Operating Temperature
88 °C
105°C
Transistor Count
-
16.63 billions
Foundry
-
TSMC
Die Size
-
70.6 mm²
I/O Process Size
-
6 nm
I/O Die Size
-
122 mm²
Package
-
FC-BGA
CPU Performance
Performance Cores
14
-
Performance Core Threads
28
-
Performance Core Base Frequency
3.3 GHz
2.7 GHz
Performance Core Turbo Frequency
4.4 GHz
4.5 GHz
Total Core Count
14
12
Total Thread Count
28
24
Bus Frequency
100 MHz
100 MHz
Multiplier
33x
27.0
L1 Cache
64 K per core
80 KB per core
L2 Cache
1 MB per core
1 MB per core
L3 Cache
20 MB shared
64 MB shared
Unlocked Multiplier
Yes
No
SMP
-
1
Memory Parameters
Memory Types
DDR4-2666
DDR5-5600
Max Memory Size
128 GB
-
Max Memory Channels
4
2
Max Memory Bandwidth
85 GB/s
89.6 GB/s
ECC Memory Support
No
Yes
Miscellaneous
PCIe Version
3.0
5
PCIe Lanes
44
28
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
-
📊 Benchmark
Cinebench R23
1,228
-
Cinebench R23
15,351
-
Geekbench 6
1,328
-
Geekbench 5
1,189
-
Geekbench 6
9,787
-
Geekbench 5
14,374
-