Home Comparison Intel Core i9 7900X vs Intel Core i7 6900K

Intel Core i9 7900X vs Intel Core i7 6900K

We compared two desktop CPUs: Intel Core i9 7900X with 10 cores 3.3GHz and Intel Core i7 6900K with 8 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 7900X '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 (3.3GHz vs 3.2GHz)
Intel Core i7 6900K 's Advantages
Larger L3 cache size (20MB vs 14MB)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i9 7900X +4%
1203
Intel Core i7 6900K
1151
Cinebench R23 Multi Core
Intel Core i9 7900X +32%
14998
Intel Core i7 6900K
11326
Geekbench 6 Single Core
Intel Core i9 7900X +2%
1323
Intel Core i7 6900K
1286
Geekbench 6 Multi Core
Intel Core i9 7900X +14%
8536
Intel Core i7 6900K
7470
Geekbench 5 Single Core
Intel Core i9 7900X +17%
1127
Intel Core i7 6900K
961
Geekbench 5 Multi Core
Intel Core i9 7900X +39%
10189
Intel Core i7 6900K
7327
Passmark CPU Single Core
Intel Core i9 7900X +10%
2556
Intel Core i7 6900K
2310
Passmark CPU Multi Core
Intel Core i9 7900X +47%
20991
Intel Core i7 6900K
14258
VS

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
i9-7900X
Processor Number
i7-6900K
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
95 °C
Peak Operating Temperature
-

CPU Performance

10
Performance Cores
8
20
Performance Core Threads
16
3.3 GHz
Performance Core Base Frequency
3.2 GHz
4.3 GHz
Performance Core Turbo Frequency
3.7 GHz
10
Total Core Count
8
20
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
33x
Multiplier
32x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
256 K per core
14 MB shared
L3 Cache
20 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
44
PCIe Lanes
40
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
-

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