Intel Core i7 7820X vs Intel Core i5 10400F
We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i5 10400F with 6 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 7820X 's Advantages
Larger memory bandwidth (79.47GB/s vs 41.6GB/s)
Higher base frequency (3.6GHz vs 2.9GHz)
Intel Core i5 10400F 's Advantages
Released 3 years late
Larger L3 cache size (12MB vs 11MB)
Lower TDP (65W vs 140W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 7820X
+21%
1338
Intel Core i5 10400F
1101
Cinebench R23 Multi Core
Intel Core i7 7820X
+76%
13358
Intel Core i5 10400F
7576
Geekbench 6 Single Core
Intel Core i7 7820X
1252
Intel Core i5 10400F
+16%
1459
Geekbench 6 Multi Core
Intel Core i7 7820X
+20%
7510
Intel Core i5 10400F
6209
Geekbench 5 Single Core
Intel Core i7 7820X
+1%
1120
Intel Core i5 10400F
1101
Geekbench 5 Multi Core
Intel Core i7 7820X
+40%
8504
Intel Core i5 10400F
6041
Passmark CPU Single Core
Intel Core i7 7820X
2536
Intel Core i5 10400F
2551
Passmark CPU Multi Core
Intel Core i7 7820X
+39%
17189
Intel Core i5 10400F
12350
General Parameters
May 2017
Release Date
May 2020
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Comet Lake
i7-7820X
Processor Number
i5-10400F
LGA-2066
Socket
LGA-1200
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
65 W
99 °C
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
12
3.6 GHz
Performance Core Base Frequency
2.9 GHz
4.3 GHz
Performance Core Turbo Frequency
4.3 GHz
8
Total Core Count
6
16
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
29x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
256 K per core
11 MB shared
L3 Cache
12 MB shared
Yes
Unlocked Multiplier
No
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
2
79.47 GB/s
Max Memory Bandwidth
41.6 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
28
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
-
