Intel i5 9400 vs 8400: Intel Core i5-8400 vs i5-9400

Intel Core i5 8400 vs Intel Core i5 9400 : Which one is better?

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Comparison

Intel Core i5 8400 vs Intel Core i5 9400

VS

Intel Core i5 8400
Intel Core i5 9400

We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core i5 9400 with 6 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Key Differences

Intel Core i5 9400’s Advantages

Released 1 years and 3 months late

Higher base frequency (2.9GHz vs 2.8GHz)

Benchmark

Passmark CPU Single Core

Intel Core i5 8400

2387

Intel Core i5 9400
+2%

2457

Passmark CPU Multi Core

Intel Core i5 8400

9214

Intel Core i5 9400
+2%

9431

Geekbench 5 Single Core

Intel Core i5 8400

1032

Intel Core i5 9400
+1%

1048

Geekbench 5 Multi Core

Intel Core i5 8400

4611

Intel Core i5 9400

4599

Geekbench 6 Single Core

Intel Core i5 8400
+17%

1298

Intel Core i5 9400

1102

Geekbench 6 Multi Core

Intel Core i5 8400
+102%

4677

Intel Core i5 9400

2309

Intel Core i5 8400

VS

Intel Core i5 9400

General Parameters

Oct 2017

Release Date

Jan 2019

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Coffee Lake

i5-8400

Processor Number

i5-9400

LGA-1151

Socket

LGA-1151

UHD Graphics 630

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

65 W

Power Consumption

65 W

100

Peak Operating Temperature

100

CPU Performance

6

Performance Cores

6

6

Performance Core Threads

6

2. 8 GHz

Performance Core Base Frequency

2.9 GHz

4 GHz

Performance Core Turbo Frequency

4.1 GHz

6

Total Core Count

6

6

Total Thread Count

6

100MHz

Bus Frequency

100MHz

28x

Multiplier

29x

64K per core

L1 Cache

64K per core

256K per core

L2 Cache

256K per core

9MB shared

L3 Cache

9MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128GB

Max Memory Size

128GB

2

Max Memory Channels

2

41. 6 GB/s

Max Memory Bandwidth

41.6 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

1050 MHz

192

Shader Units

192

24

Texture Units

24

3

Raster Operation Units

3

24

Execution Units

24

15 W

Power Consumption

15 W

4096×2304 — 60 Hz

Max Resolution

4096×2304 — 60 Hz

0. 38 TFLOPS

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i5 8400

Official Website

Intel Core i5 9400

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

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i5-8400 vs i5-9400 — Destiny 2 with GTX 1060 6GB Benchmarks 1080p, 1440p, Ultrawide, 4K Comparison

GTX 1060 6GB with

Intel Core i5-8400 @ 2.80GHz

Destiny 2

GTX 1060 6GB with

Intel Core i5-9400 @ 2.90GHz

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i5-8400
i5-9400

Multi-Thread Performance

11694 Pts

11750 Pts

Single-Thread Performance

2334 Pts

2377 Pts

Destiny 2

i5-8400 vs i5-9400 in Destiny 2 using GTX 1060 6GB — CPU Performance comparison at Ultra, High, Medium, and Low Quality Settings with 1080p, 1440p, Ultrawide, 4K resolutions

i5-8400
i5-9400

---

Ultra Quality

Resolution	Frames Per Second
1080p	84. 3 FPS
1080p	88.0 FPS
1440p	71.0 FPS
1440p	72.3 FPS
2160p	35.5 FPS
2160p	36.1 FPS
w1440p	57.0 FPS
w1440p	58.0 FPS

High Quality

Resolution	Frames Per Second
1080p	136.4 FPS
1080p	141. 5 FPS
1440p	118.0 FPS
1440p	119.8 FPS
2160p	65.1 FPS
2160p	66.1 FPS
w1440p	97.8 FPS
w1440p	99.3 FPS

Medium Quality

Resolution	Frames Per Second
1080p	188.6 FPS
1080p	194.9 FPS
1440p	164. 9 FPS
1440p	167.3 FPS
2160p	94.8 FPS
2160p	96.1 FPS
w1440p	138.6 FPS
w1440p	140.6 FPS

Low Quality

Resolution	Frames Per Second
1080p	292.8 FPS
1080p	301.9 FPS
1440p	258.8 FPS
1440p	262. 2 FPS
2160p	154.0 FPS
2160p	156.0 FPS
w1440p	220.3 FPS
w1440p	223.1 FPS

i5-8400

• The i5-8400 has higher Level 2 Cache. Data/instructions which have to be processed can be loaded from the fast L2 and the CPU does not have to wait for the very slow DDR RAM
• The i5-8400 has higher Level 3 Cache. This is useful when you have substantial multiprocessing workloads, many computationally intense simultaneous processes. More likely on a server, less on a personally used computer for interactive desktop workloads.
• The i5-8400 has more cores. The benefit of having more cores is that the system can handle more threads. Each core can handle a separate stream of data. This architecture greatly increases the performance of a system that is running concurrent applications.
• The i5-8400 has more threads. Larger programs are divided into threads (small sections) so that the processor can execute them simultaneously to get faster execution.
• For some games, a cpu with a higher clock speed, or in a technical name IPC (Instructions per clock), has better results than other CPU’s with higher core count and lower core speed.
• The i5-8400 has a higher turbo clock boost. Turbo Boost is a CPU feature that will run CPU clock speed faster than its base clock, if certain conditions are present. It will enable older software that runs on fewer cores, to perform better on newer hardware. Since games are software too, it is also applicable to them.

i5-9400

• The i5-9400 is more power efficient and generates less heat.
• The i5-9400 has a smaller process size. The faster a transistor can toggle on and off, the faster it can do work. And transistors that turn on and off with less energy are more efficient, reducing the operating power, or “dynamic power consumption,” required by a processor.

Compare i5-8400 vs i5-9400 specifications

i5-8400 vs i5-9400 Architecture

	i5-8400	i5-9400
Codename	Coffee Lake	Coffee Lake
Generation	Core i5 (Coffee Lake)	Core i5 (Coffee Lake Refresh)
Market	Desktop	Desktop
Memory Support	DDR4	DDR4
Part#	SLAPL	SR3X5
Production Status	Active	Active
Released	Oct 2017	Oct 2018

i5-8400 vs i5-9400 Cache

	i5-8400	i5-9400
Cache L1	64K (per core)	64K (per core)
Cache L2	256K (per core)	256K (per core)
Cache L3	9MB (shared)	9MB (shared)

i5-8400 vs i5-9400 Cores

	i5-8400	i5-9400
# of Cores	6	6
# of Threads	6	6
Integrated Graphics	N/A	UHD 630
SMP # CPUs	1	1

i5-8400 vs i5-9400 Features

	i5-8400	i5-9400

i5-8400 vs i5-9400 Performance

	i5-8400	i5-9400
Base Clock	100 MHz	100 MHz
Frequency	2.