Intel Core i9 7900X vs Intel Core i7 7800X
We compared two desktop CPUs: Intel Core i9 7900X with 10 cores 3.3GHz and Intel Core i7 7800X with 6 cores 3.5GHz . 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
Higher specification of memory (2666 vs 2400)
Larger L3 cache size (14MB vs 8MB)
Intel Core i7 7800X 's Advantages
Higher base frequency (3.5GHz vs 3.3GHz)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 7900X
+24%
1203
Intel Core i7 7800X
963
Cinebench R23 Multi Core
Intel Core i9 7900X
+106%
14998
Intel Core i7 7800X
7269
Geekbench 6 Single Core
Intel Core i9 7900X
1323
Intel Core i7 7800X
+2%
1362
Geekbench 6 Multi Core
Intel Core i9 7900X
+40%
8536
Intel Core i7 7800X
6082
Geekbench 5 Single Core
Intel Core i9 7900X
+5%
1127
Intel Core i7 7800X
1069
Geekbench 5 Multi Core
Intel Core i9 7900X
+54%
10189
Intel Core i7 7800X
6578
Passmark CPU Single Core
Intel Core i9 7900X
+6%
2556
Intel Core i7 7800X
2409
Passmark CPU Multi Core
Intel Core i9 7900X
+62%
20991
Intel Core i7 7800X
12894
General Parameters
May 2017
Release Date
May 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Skylake
i9-7900X
Processor Number
i7-7800X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
140 W
95 °C
Peak Operating Temperature
100 °C
CPU Performance
10
Performance Cores
6
20
Performance Core Threads
12
3.3 GHz
Performance Core Base Frequency
3.5 GHz
4.3 GHz
Performance Core Turbo Frequency
4 GHz
10
Total Core Count
6
20
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
33x
Multiplier
35x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
1 MB per core
14 MB shared
L3 Cache
8 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2400
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
79.47 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
28
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
