Intel Xeon E5 2643 v2 vs Xeon 6523P B
We compared two server CPUs: Intel Xeon E5 2643 v2 with 6 cores 3.5GHz and Xeon 6523P B with 24 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5 2643 v2 's Advantages
Higher base frequency (3.5GHz vs 2.5GHz)
Lower TDP (130W vs 175W)
Xeon 6523P B 's Advantages
Released 11 years and 5 months late
Higher specification of memory (5600 vs 3)
Newer PCIe version (5 vs 3)
Larger L3 cache size (96MB vs 15MB)
More modern manufacturing process (5nm vs 22nm)
Score
General Parameters
Sep 2013
Release Date
Feb 2025
Intel
Manufacturer
Intel
Server
Type
Server
Ivy Bridge-EP
Core Architecture
Granite Rapids
Intel Socket 2011
Socket
Intel BGA 4368
N/A
Integrated Graphics
N/A
Xeon E5 (Ivy Bridge-EP)
Generation
Xeon 6 (Granite Rapids-D)
Package
1.4 billions
Transistor Count
-
22 nm
Manufacturing Process
5 nm
130 W
Power Consumption
175 W
Intel
Foundry
Intel
160 mm²
Die Size
598 mm²
-
I/O Process Size
10 nm
CPU Performance
3.5 GHz
Performance Core Base Frequency
2.5 GHz
0
Performance Core Turbo Frequency
3.9 GHz
6
Total Core Count
24
12
Total Thread Count
48
100 MHz
Bus Frequency
100 MHz
35.0
Multiplier
25.0
64 K per core
L1 Cache
112 KB per core
256 K per core
L2 Cache
2 MB per core
15 MB shared
L3 Cache
96 MB shared
No
Unlocked Multiplier
No
2
SMP
1
-
AVX-512 FMA Ports
2
Memory Parameters
DDR3
Memory Types
DDR5-5600
-
Max Memory Size
1.13 TB
4
Max Memory Channels
4
Yes
ECC Memory Support
Yes
Miscellaneous
3
PCIe Version
5
-
PCIe Lanes
32
