Intel Core i7 7800X vs Intel Core i9 7920X
We compared two desktop CPUs: Intel Core i7 7800X with 6 cores 3.5GHz and Intel Core i9 7920X with 12 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 7800X 's Advantages
Higher base frequency (3.5GHz vs 2.9GHz)
Intel Core i9 7920X 's Advantages
Higher specification of memory (2666 vs 2400)
Larger memory bandwidth (85GB/s vs 79.47GB/s)
Larger L3 cache size (17MB vs 8MB)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i7 7800X
+29%
1362
Intel Core i9 7920X
1053
Geekbench 6 Multi Core
Intel Core i7 7800X
+40%
6082
Intel Core i9 7920X
4327
Geekbench 5 Single Core
Intel Core i7 7800X
1069
Intel Core i9 7920X
+6%
1137
Geekbench 5 Multi Core
Intel Core i7 7800X
6578
Intel Core i9 7920X
+79%
11828
Passmark CPU Single Core
Intel Core i7 7800X
2409
Intel Core i9 7920X
+3%
2488
Passmark CPU Multi Core
Intel Core i7 7800X
12894
Intel Core i9 7920X
+82%
23468
General Parameters
May 2017
Release Date
Aug 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i7-7800X
Processor Number
i9-7920X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
140 W
100 °C
Peak Operating Temperature
95 °C
CPU Performance
6
Performance Cores
12
12
Performance Core Threads
24
3.5 GHz
Performance Core Base Frequency
2.9 GHz
4 GHz
Performance Core Turbo Frequency
4.3 GHz
6
Total Core Count
12
12
Total Thread Count
24
100 MHz
Bus Frequency
100 MHz
35x
Multiplier
29x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
8 MB shared
L3 Cache
17 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2400
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
79.47 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
28
PCIe Lanes
44
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
