Intel Core i7 7740X vs Intel Core i9 9900KF
We compared two desktop CPUs: Intel Core i7 7740X with 4 cores 4.3GHz and Intel Core i9 9900KF with 8 cores 3.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 7740X 's Advantages
Larger memory bandwidth (42.7GB/s vs 41.6GB/s)
Higher base frequency (4.3GHz vs 3.6GHz)
Intel Core i9 9900KF 's Advantages
Released 1 years and 8 months late
Larger L3 cache size (16MB vs 8MB)
Lower TDP (95W vs 112W)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i7 7740X
1553
Intel Core i9 9900KF
+3%
1612
Geekbench 6 Multi Core
Intel Core i7 7740X
5516
Intel Core i9 9900KF
+38%
7648
Geekbench 5 Single Core
Intel Core i7 7740X
1291
Intel Core i9 9900KF
1300
Geekbench 5 Multi Core
Intel Core i7 7740X
5001
Intel Core i9 9900KF
+77%
8856
Passmark CPU Single Core
Intel Core i7 7740X
2759
Intel Core i9 9900KF
+6%
2945
Passmark CPU Multi Core
Intel Core i7 7740X
9824
Intel Core i9 9900KF
+87%
18462
General Parameters
May 2017
Release Date
Jan 2019
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Kaby Lake
Core Architecture
Coffee Lake
i7-7740X
Processor Number
i9-9900KF
LGA-2066
Socket
LGA-1151
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
112 W
Power Consumption
95 W
100 °C
Peak Operating Temperature
100 °C
CPU Performance
4
Performance Cores
8
8
Performance Core Threads
16
4.3 GHz
Performance Core Base Frequency
3.6 GHz
4.5 GHz
Performance Core Turbo Frequency
5 GHz
4
Total Core Count
8
8
Total Thread Count
16
-
Bus Frequency
100 MHz
43x
Multiplier
36x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
8 MB shared
L3 Cache
16 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
64 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
42.7 GB/s
Max Memory Bandwidth
41.6 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
