Intel Core i5 7640X vs Intel Core i7 14700KF
We compared two desktop CPUs: Intel Core i5 7640X with 4 cores 4.0GHz and Intel Core i7 14700KF with 20 cores 3.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 7640X 's Advantages
Higher base frequency (4.0GHz vs 3.4GHz)
Lower TDP (112W vs 125W)
Intel Core i7 14700KF 's Advantages
Released 6 years and 5 months late
Higher specification of memory (5600 vs 2666)
Larger memory bandwidth (89.6GB/s vs 42.7GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (33MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 7640X
1419
Intel Core i7 14700KF
+114%
3041
Geekbench 6 Multi Core
Intel Core i5 7640X
3726
Intel Core i7 14700KF
+470%
21268
Passmark CPU Single Core
Intel Core i5 7640X
2505
Intel Core i7 14700KF
+79%
4488
Passmark CPU Multi Core
Intel Core i5 7640X
6735
Intel Core i7 14700KF
+694%
53538
General Parameters
May 2017
Release Date
Oct 2023
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Kaby Lake
Core Architecture
Raptor Lake Refresh
i5-7640X
Processor Number
i7-14700KF
LGA-2066
Socket
LGA-1700
N/A
Integrated Graphics
No
Package
14 nm
Manufacturing Process
10 nm
112 W
Power Consumption
125 W
-
Max Turbo Power Consumption
253 W
100 °C
Peak Operating Temperature
100°C
CPU Performance
4
Performance Cores
8
4
Performance Core Threads
16
4.0 GHz
Performance Core Base Frequency
3.4 GHz
4.2 GHz
Performance Core Turbo Frequency
5.6 GHz
-
Efficiency Cores
12
-
Efficiency Core Threads
12
-
Efficiency Core Base Frequency
2.5 GHz
-
Efficiency Core Turbo Frequency
4.3 GHz
4
Total Core Count
20
4
Total Thread Count
28
-
Bus Frequency
100 MHz
39x
Multiplier
34x
64 K per core
L1 Cache
80 K per core
256 K per core
L2 Cache
2 MB per core
6 MB shared
L3 Cache
33 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR5-5600, DDR4-3200
64 GB
Max Memory Size
192 GB
2
Max Memory Channels
2
42.7 GB/s
Max Memory Bandwidth
89.6 GB/s
No
ECC Memory Support
Yes
Miscellaneous
3.0
PCIe Version
5.0
16
PCIe Lanes
20
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-
