Home Comparison Intel Core i5 6400 vs Intel Core Ultra 7 265

Intel Core i5 6400 vs Intel Core Ultra 7 265

Intel Core i5 6400
VS
Intel Core Ultra 7 265
Intel Core i5 6400
Intel Core Ultra 7 265
We compared two desktop CPUs: Intel Core i5 6400 with 4 cores 2.7GHz and Intel Core Ultra 7 265 with 20 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 6400 's Advantages
Integrated graphics card
Higher base frequency (2.7GHz vs 2.4GHz)
Intel Core Ultra 7 265 's Advantages
Released 9 years and 4 months late
Higher specification of memory (5600 vs 2133)
Larger memory bandwidth (102.4GB/s vs 34.1GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (30MB vs 6MB)
More modern manufacturing process (3nm vs 14nm)

Score

Intel Core i5 6400
VS
Intel Core Ultra 7 265

General Parameters

Sep 2015
Release Date
Jan 2025
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
-
Skylake
Core Architecture
Arrow Lake-S
i5-6400
Processor Number
-
LGA-1151
Socket
Intel Socket 1851
HD Graphics 530
Integrated Graphics
Arc Xe2 Graphics 64EU
-
Generation
Ultra 7(Arrow Lake)

Package

-
Transistor Count
17.8 billions
14 nm
Manufacturing Process
3 nm
65 W
Power Consumption
65 W
-
Peak Operating Temperature
105°C
-
Foundry
TSMC
-
Die Size
243 mm²

CPU Performance

4
Performance Cores
8
4
Performance Core Threads
16
2.7 GHz
Performance Core Base Frequency
2.4 GHz
3.3 GHz
Performance Core Turbo Frequency
5.3 GHz
-
Efficiency Cores
12
-
Efficiency Core Threads
12
-
Efficiency Core Base Frequency
1800 MHz
-
Efficiency Core Turbo Frequency
4.6 GHz
4
Total Core Count
20
4
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
27x
Multiplier
24.0
64 K per core
L1 Cache
112 KB per core
256 K per core
L2 Cache
3 MB per core
6 MB shared
L3 Cache
30 MB shared
No
Unlocked Multiplier
No
-
SMP
1

Memory Parameters

DDR4-2133, DDR3L-1600
Memory Types
DDR5-5600
64 GB
Max Memory Size
256 GB
2
Max Memory Channels
2
34.1 GB/s
Max Memory Bandwidth
102.4 GB/s
No
ECC Memory Support
No

Graphics Card Parameters

true
Integrated Graphics
-
950 MHz
GPU Max Dynamic Frequency
-

Miscellaneous

Intel Core i5 6400
Official Website
3.0
PCIe Version
5
16
PCIe Lanes
20
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-

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