Intel Atom x7405C vs Xeon 6556P B
We compared two server CPUs: Intel Atom x7405C with 4 cores 1.7GHz and Xeon 6556P B with 36 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Atom x7405C 's Advantages
Lower TDP (12W vs 215W)
Xeon 6556P B 's Advantages
Released 10 months late
Higher specification of memory (6400 vs 4800)
Newer PCIe version (5 vs 3)
Higher base frequency (2.3GHz vs 1.7GHz)
Larger L3 cache size (144MB vs 6MB)
More modern manufacturing process (5nm vs 10nm)
Score
General Parameters
Apr 2024
Release Date
Feb 2025
Intel
Manufacturer
Intel
Server
Type
Server
Amston Lake
Core Architecture
Granite Rapids
Intel BGA 1264
Socket
Intel BGA 4368
N/A
Integrated Graphics
N/A
Atom (Gracemont)
Generation
Xeon 6 (Granite Rapids-D)
Package
10 nm
Manufacturing Process
5 nm
12 W
Power Consumption
215 W
Intel
Foundry
Intel
-
Die Size
598 mm²
-
I/O Process Size
10 nm
CPU Performance
1.7 GHz
Performance Core Base Frequency
2.3 GHz
3.4 GHz
Performance Core Turbo Frequency
3.5 GHz
4
Total Core Count
36
4
Total Thread Count
72
100 MHz
Bus Frequency
100 MHz
17.0
Multiplier
23.0
96 KB per core
L1 Cache
112 KB per core
2 MB shared
L2 Cache
2 MB per core
6 MB shared
L3 Cache
144 MB shared
No
Unlocked Multiplier
No
1
SMP
2
-
AVX-512 FMA Ports
2
Memory Parameters
DDR4-3200, DDR5-4800
Memory Types
DDR5-6400
32 GB
Max Memory Size
1.13 TB
1
Max Memory Channels
4
38.4 GB/s
Max Memory Bandwidth
-
No
ECC Memory Support
Yes
