Intel Core i5 8400 vs Intel Core i7 6785R
We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core i7 6785R with 4 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 8400 Advantages
Released 1 years and 5 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (41.6GB/s vs 34.1GB/s)
Larger L3 cache size (9MB vs 8MB)
Intel Core i7 6785R Advantages
Newer PCIe version (3 vs 3.0)
Higher base frequency (3.3GHz vs 2.8GHz)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 8400
+80%
1298
Intel Core i7 6785R
718
Geekbench 6 Multi Core
Intel Core i5 8400
+122%
4677
Intel Core i7 6785R
2101
General Parameters
Oct 2017
Release Date
May 2016
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
-
Coffee Lake
Core Architecture
Skylake
i5-8400
Processor Number
-
LGA-1151
Socket
Intel BGA 1440
UHD Graphics 630
Integrated Graphics
Iris Pro 580
-
Generation
Core i7(Skylake-R)
Package
14 nm
Manufacturing Process
14 nm
65 W
Power Consumption
65 W
100 °C
Peak Operating Temperature
100°C
-
Foundry
Intel
CPU Performance
6
Performance Cores
4
6
Performance Core Threads
8
2.8 GHz
Performance Core Base Frequency
3.3 GHz
4 GHz
Performance Core Turbo Frequency
3.9 GHz
6
Total Core Count
4
6
Total Thread Count
8
100 MHz
Bus Frequency
100 MHz
28x
Multiplier
33.0
64 K per core
L1 Cache
64 KB per core
256 K per core
L2 Cache
256 KB per core
9 MB shared
L3 Cache
8 MB shared
No
Unlocked Multiplier
No
-
SMP
1
Memory Parameters
DDR4-2666
Memory Types
DDR3, DDR4-2133
128 GB
Max Memory Size
64
2
Max Memory Channels
2
41.6 GB/s
Max Memory Bandwidth
34.1 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
350 MHz
GPU Base Frequency
350 MHz
1050 MHz
GPU Max Dynamic Frequency
1150 MHz
192
Shader Units
-
24
Texture Units
-
3
Raster Operation Units
-
24
Execution Units
-
15 W
Power Consumption
-
4096x2304 - 60 Hz
Max Resolution
-
0.38 TFLOPS
Graphics Performance
-
Miscellaneous
3.0
PCIe Version
3
16
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-
