Intel Core i7 9800X vs Intel Core i7 7820X
We compared two desktop CPUs: Intel Core i7 9800X with 8 cores 3.8GHz and Intel Core i7 7820X 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 9800X 's Advantages
Released 1 years and 5 months late
Higher base frequency (3.8GHz vs 3.6GHz)
Larger L3 cache size (17MB vs 11MB)
Intel Core i7 7820X 's Advantages
Lower TDP (140W vs 165W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 9800X
1263
Intel Core i7 7820X
+5%
1338
Cinebench R23 Multi Core
Intel Core i7 9800X
13055
Intel Core i7 7820X
+2%
13358
Geekbench 6 Single Core
Intel Core i7 9800X
+4%
1314
Intel Core i7 7820X
1252
Geekbench 6 Multi Core
Intel Core i7 9800X
+6%
7991
Intel Core i7 7820X
7510
Geekbench 5 Single Core
Intel Core i7 9800X
+9%
1225
Intel Core i7 7820X
1120
Geekbench 5 Multi Core
Intel Core i7 9800X
+13%
9648
Intel Core i7 7820X
8504
Passmark CPU Single Core
Intel Core i7 9800X
+1%
2573
Intel Core i7 7820X
2536
Passmark CPU Multi Core
Intel Core i7 9800X
+5%
18121
Intel Core i7 7820X
17189
General Parameters
Oct 2018
Release Date
May 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i7-9800X
Processor Number
i7-7820X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
165 W
Power Consumption
140 W
95 °C
Peak Operating Temperature
99 °C
CPU Performance
8
Performance Cores
8
16
Performance Core Threads
16
3.8 GHz
Performance Core Base Frequency
3.6 GHz
4.4 GHz
Performance Core Turbo Frequency
4.3 GHz
8
Total Core Count
8
16
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
38x
Multiplier
36x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
17 MB shared
L3 Cache
11 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
4
79.47 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
28
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
