Celeron G1840T vs i5-8400

Primary details

Comparing Core i5-8400 and Celeron G1840T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1128	2475
Place by popularity	63	not in top-100
Cost-effectiveness evaluation	5.00	no data
Market segment	Desktop processor	Desktop processor
Series	Intel Core i5	no data
Power efficiency	8.41	1.73
Architecture codename	Coffee Lake-S (2017−2018)	Haswell (2013−2015)
Release date	5 October 2017 (7 years ago)	1 May 2014 (10 years ago)
Launch price (MSRP)	$182	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i5-8400 and Celeron G1840T basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	6 (Hexa-Core)	2 (Dual-core)
Threads	6	2
Base clock speed	2.8 GHz	2.5 GHz
Boost clock speed	4 GHz	2.5 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	5 GT/s
Multiplier	28	no data
L1 cache	64K (per core)	64 KB (per core)
L2 cache	256K (per core)	256 KB (per core)
L3 cache	9 MB (shared)	3 MB (shared)
Chip lithography	14 nm	22 nm
Die size	149 mm2	177 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	72 °C
Number of transistors	no data	1,400 million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Core i5-8400 and Celeron G1840T compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1
Socket	FCLGA1151	FCLGA1150
Power consumption (TDP)	65 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8400 and Celeron G1840T. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	-
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	+	+

Security technologies

Core i5-8400 and Celeron G1840T technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	+
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8400 and Celeron G1840T are enumerated here.

AMD-V	+	-
VT-d	+	-
VT-x	+	+
VT-i	no data	-
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8400 and Celeron G1840T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3, DDR4	DDR3
Maximum memory size	128 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	42.671 GB/s	21.3 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics 630	Intel HD Graphics for 4th Generation Intel Processors
Max video memory	64 GB	1.7 GB
Quick Sync Video	+	+
Clear Video	+	no data
Clear Video HD	+	+
Graphics max frequency	1.05 GHz	1.05 GHz
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-8400 and Celeron G1840T integrated GPUs.

Number of displays supported	3	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
DVI	no data	+
VGA	no data	+

Graphics image quality

Maximum display resolutions supported by Core i5-8400 and Celeron G1840T integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	1920x1080@60Hz
Max resolution over eDP	4096x2304@60Hz	2560x1600@60Hz
Max resolution over DisplayPort	4096x2304@60Hz	2560x1600@60Hz
Max resolution over VGA	no data	1920x1200@60Hz

Graphics API support

APIs supported by Core i5-8400 and Celeron G1840T integrated GPUs, sometimes API versions are included.

DirectX	12	11.1/12
OpenGL	4.5	4.3

Peripherals

Specifications and connection of peripherals supported by Core i5-8400 and Celeron G1840T.

PCIe version	3.0	Up to 3.0
PCI Express lanes	16	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	5.81	0.99
Integrated graphics card	3.09	0.77
Recency	5 October 2017	1 May 2014
Physical cores	6	2
Threads	6	2
Chip lithography	14 nm	22 nm
Power consumption (TDP)	65 Watt	35 Watt

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Should you still have questions on choice between Core i5-8400 and Celeron G1840T, ask them in Comments section, and we shall answer.

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