Intel Core i7 7820X vs Intel Core i9 10900KF
We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i9 10900KF with 10 cores 3.7GHz . 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 45.8GB/s)
Intel Core i9 10900KF 's Advantages
Released 3 years late
Higher specification of memory (2933 vs 2666)
Higher base frequency (3.7GHz vs 3.6GHz)
Larger L3 cache size (20MB vs 11MB)
Lower TDP (125W vs 140W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 7820X
1338
Intel Core i9 10900KF
+2%
1375
Cinebench R23 Multi Core
Intel Core i7 7820X
13358
Intel Core i9 10900KF
+3%
13761
Geekbench 6 Single Core
Intel Core i7 7820X
1252
Intel Core i9 10900KF
+39%
1741
Geekbench 6 Multi Core
Intel Core i7 7820X
+1%
7510
Intel Core i9 10900KF
7414
Geekbench 5 Single Core
Intel Core i7 7820X
1120
Intel Core i9 10900KF
+16%
1301
Geekbench 5 Multi Core
Intel Core i7 7820X
8504
Intel Core i9 10900KF
+29%
11050
Passmark CPU Single Core
Intel Core i7 7820X
2536
Intel Core i9 10900KF
+22%
3118
Passmark CPU Multi Core
Intel Core i7 7820X
17189
Intel Core i9 10900KF
+33%
22915
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
i9-10900KF
LGA-2066
Socket
LGA-1200
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
125 W
99 °C
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
10
16
Performance Core Threads
20
3.6 GHz
Performance Core Base Frequency
3.7 GHz
4.3 GHz
Performance Core Turbo Frequency
5.3 GHz
8
Total Core Count
10
16
Total Thread Count
20
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
37x
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
20 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2933
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
2
79.47 GB/s
Max Memory Bandwidth
45.8 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
-
