Intel Core i7 7820X vs Intel Core i7 7700K
We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i7 7700K with 4 cores 4.2GHz . 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
Higher specification of memory (2666 vs 2400)
Larger memory bandwidth (79.47GB/s vs 35.76GB/s)
Larger L3 cache size (11MB vs 8MB)
Intel Core i7 7700K 's Advantages
Integrated graphics card
Higher base frequency (4.2GHz vs 3.6GHz)
Lower TDP (91W vs 140W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 7820X
+10%
1338
Intel Core i7 7700K
1209
Cinebench R23 Multi Core
Intel Core i7 7820X
+127%
13358
Intel Core i7 7700K
5881
Geekbench 6 Single Core
Intel Core i7 7820X
1252
Intel Core i7 7700K
+24%
1557
Geekbench 6 Multi Core
Intel Core i7 7820X
+42%
7510
Intel Core i7 7700K
5260
Geekbench 5 Single Core
Intel Core i7 7820X
1120
Intel Core i7 7700K
1129
Geekbench 5 Multi Core
Intel Core i7 7820X
+80%
8504
Intel Core i7 7700K
4705
Passmark CPU Single Core
Intel Core i7 7820X
2536
Intel Core i7 7700K
+6%
2712
Passmark CPU Multi Core
Intel Core i7 7820X
+79%
17189
Intel Core i7 7700K
9594
General Parameters
May 2017
Release Date
Jan 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Kaby Lake
i7-7820X
Processor Number
i7-7700K
LGA-2066
Socket
LGA-1151
N/A
Integrated Graphics
HD Graphics 630
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
91 W
99 °C
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
4
16
Performance Core Threads
8
3.6 GHz
Performance Core Base Frequency
4.2 GHz
4.3 GHz
Performance Core Turbo Frequency
4.5 GHz
8
Total Core Count
4
16
Total Thread Count
8
100 MHz
Bus Frequency
42 MHz
36x
Multiplier
100x
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
8 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2400, DDR3L-1600
128 GB
Max Memory Size
64 GB
4
Max Memory Channels
2
79.47 GB/s
Max Memory Bandwidth
35.76 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
-
Integrated Graphics
true
-
GPU Base Frequency
350 MHz
-
GPU Max Dynamic Frequency
1150 MHz
-
Shader Units
192
-
Texture Units
24
-
Raster Operation Units
3
-
Execution Units
24
-
Power Consumption
15 W
-
Max Resolution
4096x2304 - 60 Hz
-
Graphics Performance
0.44 TFLOPS
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
