Intel Core i7 7820X vs Intel Core i9 9900KF
We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i9 9900KF with 8 cores 3.6GHz . 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)
Intel Core i9 9900KF 's Advantages
Released 1 years and 8 months late
Larger L3 cache size (16MB vs 11MB)
Lower TDP (95W vs 140W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 7820X
+6%
1338
Intel Core i9 9900KF
1260
Cinebench R23 Multi Core
Intel Core i7 7820X
+5%
13358
Intel Core i9 9900KF
12606
Geekbench 6 Single Core
Intel Core i7 7820X
1252
Intel Core i9 9900KF
+28%
1612
Geekbench 6 Multi Core
Intel Core i7 7820X
7510
Intel Core i9 9900KF
+1%
7648
Geekbench 5 Single Core
Intel Core i7 7820X
1120
Intel Core i9 9900KF
+16%
1300
Geekbench 5 Multi Core
Intel Core i7 7820X
8504
Intel Core i9 9900KF
+4%
8856
Passmark CPU Single Core
Intel Core i7 7820X
2536
Intel Core i9 9900KF
+16%
2945
Passmark CPU Multi Core
Intel Core i7 7820X
17189
Intel Core i9 9900KF
+7%
18462
General Parameters
May 2017
Release Date
Jan 2019
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Coffee Lake
i7-7820X
Processor Number
i9-9900KF
LGA-2066
Socket
LGA-1151
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
95 W
99 °C
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
8
16
Performance Core Threads
16
3.6 GHz
Performance Core Base Frequency
3.6 GHz
4.3 GHz
Performance Core Turbo Frequency
5 GHz
8
Total Core Count
8
16
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
36x
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
16 MB shared
Yes
Unlocked Multiplier
Yes
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
SSE4.1, SSE4.2, AVX-2
