Home Comparison Intel Core i5 6400 vs Intel Core i7 12700E

Intel Core i5 6400 vs Intel Core i7 12700E

Intel Core i5 6400
VS
Intel Core i7 12700E
Intel Core i5 6400
Intel Core i7 12700E
We compared two desktop CPUs: Intel Core i5 6400 with 4 cores 2.7GHz and Intel Core i7 12700E with 12 cores 2.1GHz . 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
Higher base frequency (2.7GHz vs 2.1GHz)
Intel Core i7 12700E 's Advantages
Released 6 years and 4 months late
Higher specification of memory (4800 vs 2133)
Larger memory bandwidth (76.8GB/s vs 34.1GB/s)
Newer PCIe version (5 vs 3.0)
Larger L3 cache size (25MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)

Score

Benchmark

Geekbench 6 Single Core
Intel Core i5 6400
1143
Intel Core i7 12700E +58%
1812
Geekbench 6 Multi Core
Intel Core i5 6400
3312
Intel Core i7 12700E +207%
10177
Intel Core i5 6400
VS
Intel Core i7 12700E

General Parameters

Sep 2015
Release Date
Jan 2022
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
-
Skylake
Core Architecture
Alder Lake-S
i5-6400
Processor Number
-
LGA-1151
Socket
Intel Socket 1700
HD Graphics 530
Integrated Graphics
UHD Graphics 770
-
Generation
Core i7 (Alder Lake-S)

Package

14 nm
Manufacturing Process
10 nm
65 W
Power Consumption
65 W
-
Foundry
Intel
-
Die Size
215 mm²

CPU Performance

4
Performance Cores
8
4
Performance Core Threads
16
2.7 GHz
Performance Core Base Frequency
2.1 GHz
3.3 GHz
Performance Core Turbo Frequency
4.8 GHz
-
Efficiency Cores
4
-
Efficiency Core Threads
4
-
Efficiency Core Base Frequency
1.6 GHz
-
Efficiency Core Turbo Frequency
3.6 GHz
4
Total Core Count
12
4
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
27x
Multiplier
21
64 K per core
L1 Cache
80 KB per core
256 K per core
L2 Cache
12 MB
6 MB shared
L3 Cache
25 MB
No
Unlocked Multiplier
No
-
SMP
1

Memory Parameters

DDR4-2133, DDR3L-1600
Memory Types
DDR4-3200, DDR5-4800
64 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
34.1 GB/s
Max Memory Bandwidth
76.8 GB/s
No
ECC Memory Support
Yes

Graphics Card Parameters

true
Integrated Graphics
true
-
GPU Base Frequency
300 MHz
950 MHz
GPU Max Dynamic Frequency
1500 MHz
-
Execution Units
32

Miscellaneous

Intel Core i5 6400
Official Website
Intel Core i7 12700E
3.0
PCIe Version
5
16
PCIe Lanes
20
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-

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