UserBenchmark: Intel Core i5-8400 vs Pentium G3258

CPU
RANKINGS

TEST
YOUR CPU

ADD TO PC
BUILD

IntelBX80646G3258

BUY • $31

IntelBX80684I58400

BUY • $125

BenchYourCPU

Real World Speed

Performance profile from 335,717 user samples

Benchmark your CPU here

23,497 User Benchmarks

Best Bench: 64% Base clock 3.2 GHz, turbo 4.5 GHz (avg)
Worst Bench: 37% Base clock 3.2 GHz, turbo 2.75 GHz (avg)

Poor: 37% Great: 64%

SPEED RANK: 725^th / 1445

Gaming 53%

Yacht

Desktop 64%

Destroyer

Workstation 37%

Jet ski

312,220 User Benchmarks

Best Bench: 89% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 61% Base clock 2.8 GHz, turbo 0.8 GHz (avg)

Poor: 61% Great: 89%

SPEED RANK: 212^th / 1445

Gaming 82%

Aircraft carrier

Desktop 83%

Aircraft carrier

Workstation 66%

Battle cruiser


Effective Speed Effective CPU Speed		52.6 %			81.8 %	Much faster effective speed. +55%


Memory Avg. Memory Latency	77.4 Pts	84.9 Pts	Slightly lower memory latency. +10%
1-Core Avg. Single Core Speed	87.3 Pts	113 Pts	Faster single-core speed. +29%
2-Core Avg. Dual Core Speed	159 Pts	224 Pts	Much faster dual-core speed. +41%
4-Core Avg. Quad Core Speed	163 Pts	434 Pts	Hugely faster quad-core speed. +166%
8-Core Avg. Octa Core Speed	167 Pts	564 Pts	Hugely faster octa-core speed. +238%


Memory OC Memory Latency	92.9 Pts	94.2 Pts	+1%
1-Core OC Single Core Speed	120 Pts	120 Pts
2-Core OC Dual Core Speed	230 Pts	237 Pts	+3%
4-Core OC Quad Core Speed	232 Pts	471 Pts	Hugely faster OC quad-core speed. +103%
8-Core OC Octa Core Speed	232 Pts	657 Pts	Hugely faster OC octa-core speed. +183%

Market Share

Based on 67,863,877 CPUs tested

See market share leaders


Market Share Market Share (trailing 30 days)	0.01 %		0.85 %	Insanely higher market share. +8,400%
Value Value For Money	96.2 %		102 %	Slightly better value. +6%
User Rating UBM User Rating	56 %		61 %	Slightly more popular. +9%
Price Price (score)	$31	Much cheaper. +75%	$125


Age Newest	120 Months		79 Months	Much more recent. +34%
TDP Thermal Design Power (TDP)	53 Watts	More energy efficient. +18%	65 Watts
Cores CPU Processing Cores	2 cores		6 cores	Hugely higher core count. +200%
Threads CPU Processing Threads	2 threads		6 threads	Hugely higher thread count. +200%
Lithography Manufacturing process	22 nm		14 nm	Much newer manufacturing. +36%
Base Clock Base Clock Speed	3.2 GHz	Faster base frequency. +14%	2.8 GHz
Turbo Clock Turbo Clock Speed	3.2 GHz		4 GHz	Faster turbo frequency. +25%
64-Core OC Multi Core Speed	232 Pts		675 Pts	Hugely faster OC 64-core speed. +191%
64-Core Avg. Multi Core Speed	166 Pts		588 Pts	Hugely faster 64-core speed. +254%


Series CPU Architecture	Haswell	Coffee Lake
Socket Motherboard Socket	FCLGA1150	FCLGA1151
Graphics Integrated Graphics	HD	UHD 630
Launch Date Launch Date	Q2'14	Q4'17
Cache Cache	3 MB	9 MB
Instruction Set Extensions Instruction Set Extensions	SSE4.1/4.2	SSE4.1/4.2, AVX2
Lithography Lithography	22 nm	14 nm
Recommended Price Recommended Customer Price	$72.00	N/A
Bus Speed Bus Speed	5 GT/s DMI2	8 GT/s DMI3
Thermal Solution Specification Thermal Solution Specification	PCG 2013C	PCG 2015C (65W)
Max Memory Size Max Memory Size (dependent on memory type)	32 GB	64 GB
Memory Types Memory Types	DDR3-1333, DDR3L-1333 @ 1.5V	DDR4-2666
ECC Memory Supported ECC Memory Supported ‡	Yes	No
Processor Graphics Processor Graphics ‡	Intel® HD Graphics	Intel® UHD Graphics 630
Graphics Max Dynamic Frequency Graphics Max Dynamic Frequency	1.1 GHz	1.05 GHz
Clear Video HD Tech Intel® Clear Video HD Technology	No	Yes
Graphics Video Max Memory Graphics Video Max Memory	1.7 GB	64 GB
Turbo Boost Tech Intel® Turbo Boost Technology ‡	No	2.0
Virtualization for Directed I/O (VT-d) Intel® Virtualization Technology for Directed I/O (VT-d) ‡	No	Yes
AES New Instructions Intel® AES New Instructions	No	Yes
PCI Express Revision PCI Express Revision	Up to 3.0	3.0
PCI Express Configurations PCI Express Configurations ‡	Up to 1x16, 2x8, 1x8+2x4	Up to 1x16 or 2x8 or 1x8+2x4
	More specs »	More specs »

The Intel G3258 is the first budget Pentium processor to feature an unlocked multiplier. This enables a comfortable overclock to 4.3 GHz using just the stock heat sink and fan. At 4.3 GHz, in terms of single and dual core performance, the G3258 challenges a fully overclocked i7-4790K, the fastest CPU I have seen to date! These results are stunning considering that the G3258 is retailing for around one fifth as much as an i7-4790K. The G3258's Achilles heel is its poor multi-core performance which is over 50% weaker than the group leaders. For the vast majority of users, assuming an overclock of 4.3 GHz, the G3258 is the best value processor on the market by miles. On the other hand, users that encode multi-media or run SLI/Crossfire setups should look elsewhere. ^{[Jul '14 CPUPro]}

MORE DETAILS

The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. ^{[Oct '17 CPUPro]}

MORE DETAILS

Systems with these CPUs

Top Builds that include these CPUs

Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU

GPU

SSD

HDD

RAM

MBD

Processor Rankings (Price vs Performance) May 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. ^[CPUPro]

Group Test Results

Best user rated - User sentiment trumps benchmarks for this comparison.
Best value for money - Value for money is based on real world performance.
Fastest real world speed - Real World Speed measures performance for typical consumers.

How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

Gaming

Desktop

ProGaming

CPU

GPU

SSD

HDD

RAM

USB

How it works

- Download and run UserBenchmark
- CPU tests include: integer, floating and string
- GPU tests include: six 3D game simulations
- Drive tests include: read, write, sustained write and mixed IO
- RAM tests include: single/multi core bandwidth and latency
- SkillBench (space shooter) tests user input accuracy
- Reports are generated and presented on userbenchmark.com
- Identify the strongest components in your PC
- See speed test results from other users
- Compare your components to the current market leaders
- Explore your best upgrade options with a virtual PC build
- Compare your in-game FPS to other users with your hardware

Frequently Asked Questions

Processors FAQ

AMD vs Intel: Gaming performance 2012-2021

How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?

What is multi core mixed speed?

What is multi core integer speed?

What is multi core floating point speed?

What is single core mixed CPU speed?

What is quad core mixed CPU speed?

What is quad core floating point speed?

What is quad core integer speed?

What is single core floating point speed?

What is single core integer speed?

What is the GeekBench single core score?

What is a CPU?

What is the effective CPU speed index?

What is overclocking?

What is thermal design power (TDP)?

ALL FAQs »

CPU	GPU	SSD
Intel Core i5-13600K $254	Nvidia RTX 4060 $290	Crucial MX500 250GB $39
Intel Core i5-12400F $133	Nvidia RTX 4060-Ti $385	Samsung 850 Evo 120GB $80
Intel Core i5-12600K $175	Nvidia RTX 4070 $550	Samsung 860 Evo 250GB $52

HDD	RAM	USB
Seagate Barracuda 1TB (2016) $39	Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45	SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32	Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45	SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62	G.SKILL Trident Z DDR4 3200 C14 4x16GB $351	SanDisk Ultra Fit 32GB $16

MORE DETAILS

MORE DETAILS

CHOOSE A COMPONENT:

Group Test Results

UserBenchmark of the month

How it works

Frequently Asked Questions

Best User Rated

Feedback