Intel Core i5 7640X vs Intel Core i7 9800X
We compared two desktop CPUs: Intel Core i5 7640X with 4 cores 4.0GHz and Intel Core i7 9800X with 8 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 7640X 's Advantages
Higher base frequency (4.0GHz vs 3.8GHz)
Lower TDP (112W vs 165W)
Intel Core i7 9800X 's Advantages
Released 1 years and 5 months late
Larger memory bandwidth (79.47GB/s vs 42.7GB/s)
Larger L3 cache size (17MB vs 6MB)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 7640X
+7%
1419
Intel Core i7 9800X
1314
Geekbench 6 Multi Core
Intel Core i5 7640X
3726
Intel Core i7 9800X
+114%
7991
Geekbench 5 Single Core
Intel Core i5 7640X
1237
Intel Core i7 9800X
1225
Geekbench 5 Multi Core
Intel Core i5 7640X
4230
Intel Core i7 9800X
+128%
9648
Passmark CPU Single Core
Intel Core i5 7640X
2505
Intel Core i7 9800X
+2%
2573
Passmark CPU Multi Core
Intel Core i5 7640X
6735
Intel Core i7 9800X
+169%
18121
General Parameters
May 2017
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Kaby Lake
Core Architecture
Skylake
i5-7640X
Processor Number
i7-9800X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
112 W
Power Consumption
165 W
100 °C
Peak Operating Temperature
95 °C
CPU Performance
4
Performance Cores
8
4
Performance Core Threads
16
4.0 GHz
Performance Core Base Frequency
3.8 GHz
4.2 GHz
Performance Core Turbo Frequency
4.4 GHz
4
Total Core Count
8
4
Total Thread Count
16
-
Bus Frequency
100 MHz
39x
Multiplier
38x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
6 MB shared
L3 Cache
17 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
4
42.7 GB/s
Max Memory Bandwidth
79.47 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
44
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
