Intel Core i7 7820X vs Intel Core i7 6800K
We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i7 6800K with 6 cores 3.4GHz . 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
Released 1 years late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (79.47GB/s vs 76.8GB/s)
Higher base frequency (3.6GHz vs 3.4GHz)
Intel Core i7 6800K 's Advantages
Larger L3 cache size (15MB vs 11MB)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 7820X
+40%
1338
Intel Core i7 6800K
951
Cinebench R23 Multi Core
Intel Core i7 7820X
+101%
13358
Intel Core i7 6800K
6632
Geekbench 6 Single Core
Intel Core i7 7820X
1252
Intel Core i7 6800K
+8%
1363
Geekbench 6 Multi Core
Intel Core i7 7820X
+15%
7510
Intel Core i7 6800K
6495
Geekbench 5 Single Core
Intel Core i7 7820X
+21%
1120
Intel Core i7 6800K
922
Geekbench 5 Multi Core
Intel Core i7 7820X
+53%
8504
Intel Core i7 6800K
5537
Passmark CPU Single Core
Intel Core i7 7820X
+11%
2536
Intel Core i7 6800K
2269
Passmark CPU Multi Core
Intel Core i7 7820X
+60%
17189
Intel Core i7 6800K
10740
General Parameters
May 2017
Release Date
May 2016
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Broadwell E
i7-7820X
Processor Number
i7-6800K
LGA-2066
Socket
LGA-2011-3
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
140 W
99 °C
Peak Operating Temperature
-
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
12
3.6 GHz
Performance Core Base Frequency
3.4 GHz
4.3 GHz
Performance Core Turbo Frequency
3.6 GHz
8
Total Core Count
6
16
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
34x
64 K per core
L1 Cache
32 K per core
1 MB per core
L2 Cache
256 K per core
11 MB shared
L3 Cache
15 MB shared
Yes
Unlocked Multiplier
No
Memory Parameters
DDR4-2666
Memory Types
DDR4-2133
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
79.47 GB/s
Max Memory Bandwidth
76.8 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
28
PCIe Lanes
28
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
-
