Intel Core i9 9900K vs Intel Core i7 7820X
We compared two desktop CPUs: Intel Core i9 9900K with 8 cores 3.6GHz 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 i9 9900K 's Advantages
Released 1 years and 5 months late
Integrated graphics card
Larger L3 cache size (16MB vs 11MB)
Lower TDP (95W vs 140W)
Intel Core i7 7820X 's Advantages
Larger memory bandwidth (79.47GB/s vs 41.6GB/s)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 9900K
1333
Intel Core i7 7820X
1338
Cinebench R23 Multi Core
Intel Core i9 9900K
12496
Intel Core i7 7820X
+6%
13358
Geekbench 6 Single Core
Intel Core i9 9900K
+32%
1665
Intel Core i7 7820X
1252
Geekbench 6 Multi Core
Intel Core i9 9900K
6395
Intel Core i7 7820X
+17%
7510
Geekbench 5 Single Core
Intel Core i9 9900K
+12%
1265
Intel Core i7 7820X
1120
Geekbench 5 Multi Core
Intel Core i9 9900K
8406
Intel Core i7 7820X
+1%
8504
Passmark CPU Single Core
Intel Core i9 9900K
+16%
2945
Intel Core i7 7820X
2536
Passmark CPU Multi Core
Intel Core i9 9900K
+6%
18381
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
Coffee Lake
Core Architecture
Skylake
i9-9900K
Processor Number
i7-7820X
LGA-1151
Socket
LGA-2066
UHD Graphics 630
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
95 W
Power Consumption
140 W
100 °C
Peak Operating Temperature
99 °C
CPU Performance
8
Performance Cores
8
16
Performance Core Threads
16
3.6 GHz
Performance Core Base Frequency
3.6 GHz
5 GHz
Performance Core Turbo Frequency
4.3 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
256 K per core
L2 Cache
1 MB per core
16 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
2
Max Memory Channels
4
41.6 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
350 MHz
GPU Base Frequency
-
1200 MHz
GPU Max Dynamic Frequency
-
192
Shader Units
-
24
Texture Units
-
3
Raster Operation Units
-
24
Execution Units
-
15 W
Power Consumption
-
4096x2304 - 60 Hz
Max Resolution
-
0.38 TFLOPS
Graphics Performance
-
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
28
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
