Intel Core i9 9900KF vs Intel Core i7 7800X
We compared two desktop CPUs: Intel Core i9 9900KF with 8 cores 3.6GHz 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 9900KF 's Advantages
Released 1 years and 8 months late
Higher specification of memory (2666 vs 2400)
Higher base frequency (3.6GHz vs 3.5GHz)
Larger L3 cache size (16MB vs 8MB)
Lower TDP (95W vs 140W)
Intel Core i7 7800X 's Advantages
Larger memory bandwidth (79.47GB/s vs 41.6GB/s)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 9900KF
+30%
1260
Intel Core i7 7800X
963
Cinebench R23 Multi Core
Intel Core i9 9900KF
+73%
12606
Intel Core i7 7800X
7269
Geekbench 6 Single Core
Intel Core i9 9900KF
+18%
1612
Intel Core i7 7800X
1362
Geekbench 6 Multi Core
Intel Core i9 9900KF
+25%
7648
Intel Core i7 7800X
6082
Geekbench 5 Single Core
Intel Core i9 9900KF
+21%
1300
Intel Core i7 7800X
1069
Geekbench 5 Multi Core
Intel Core i9 9900KF
+34%
8856
Intel Core i7 7800X
6578
Passmark CPU Single Core
Intel Core i9 9900KF
+22%
2945
Intel Core i7 7800X
2409
Passmark CPU Multi Core
Intel Core i9 9900KF
+43%
18462
Intel Core i7 7800X
12894
General Parameters
Jan 2019
Release Date
May 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Skylake
i9-9900KF
Processor Number
i7-7800X
LGA-1151
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
95 W
Power Consumption
140 W
100 °C
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
12
3.6 GHz
Performance Core Base Frequency
3.5 GHz
5 GHz
Performance Core Turbo Frequency
4 GHz
8
Total Core Count
6
16
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
35x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
16 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
2
Max Memory Channels
4
41.6 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
28
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
