Intel Core i5 7640X vs Intel Core i7 7800X
We compared two desktop CPUs: Intel Core i5 7640X with 4 cores 4.0GHz 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 i5 7640X 's Advantages
Higher specification of memory (2666 vs 2400)
Higher base frequency (4.0GHz vs 3.5GHz)
Lower TDP (112W vs 140W)
Intel Core i7 7800X 's Advantages
Larger memory bandwidth (79.47GB/s vs 42.7GB/s)
Larger L3 cache size (8MB vs 6MB)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 7640X
+4%
1419
Intel Core i7 7800X
1362
Geekbench 6 Multi Core
Intel Core i5 7640X
3726
Intel Core i7 7800X
+63%
6082
Geekbench 5 Single Core
Intel Core i5 7640X
+15%
1237
Intel Core i7 7800X
1069
Geekbench 5 Multi Core
Intel Core i5 7640X
4230
Intel Core i7 7800X
+55%
6578
Passmark CPU Single Core
Intel Core i5 7640X
+3%
2505
Intel Core i7 7800X
2409
Passmark CPU Multi Core
Intel Core i5 7640X
6735
Intel Core i7 7800X
+91%
12894
General Parameters
May 2017
Release Date
May 2017
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Kaby Lake
Core Architecture
Skylake
i5-7640X
Processor Number
i7-7800X
LGA-2066
Socket
LGA-2066
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
112 W
Power Consumption
140 W
100 °C
Peak Operating Temperature
100 °C
CPU Performance
4
Performance Cores
6
4
Performance Core Threads
12
4.0 GHz
Performance Core Base Frequency
3.5 GHz
4.2 GHz
Performance Core Turbo Frequency
4 GHz
4
Total Core Count
6
4
Total Thread Count
12
-
Bus Frequency
100 MHz
39x
Multiplier
35x
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
8 MB shared
Yes
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2400
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
28
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
