i5-9300HF vs i5-8400B

Primary details

Comparing Core i5-8400B and Core i5-9300HF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	1289
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i5	Intel Core i5
Power efficiency	no data	9.70
Architecture codename	Coffee Lake (2017−2019)	Coffee Lake-H (2018−2019)
Release date	2 April 2018 (6 years ago)	30 April 2019 (5 years ago)
Launch price (MSRP)	$182	$250

Detailed specifications

Core i5-8400B and Core i5-9300HF 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)	4 (Quad-Core)
Threads	6	8
Base clock speed	2.8 GHz	2.4 GHz
Boost clock speed	4 GHz	4.1 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	8 GT/s DMI
Multiplier	28	no data
L1 cache	384 KB	256 KB
L2 cache	1.5 MB	1 MB
L3 cache	9 MB	8 MB
Chip lithography	14 nm	14 nm
Die size	126 mm2	no data
Maximum core temperature	100 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	+	+

Compatibility

Information on Core i5-8400B and Core i5-9300HF 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	FCBGA1440	FCBGA1440
Power consumption (TDP)	65 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8400B and Core i5-9300HF. 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, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
My WiFi	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+

Security technologies

Core i5-8400B and Core i5-9300HF technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	-
EDB	+	+
Secure Key	+	+
MPX	+	+
Identity Protection	+	+
SGX	Yes with Intel® ME	Yes with Intel® ME
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8400B and Core i5-9300HF are enumerated here.

AMD-V	-	+
VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8400B and Core i5-9300HF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4
Maximum memory size	64 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	42.671 GB/s	41.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 630	no data
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.05 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-8400B and Core i5-9300HF integrated GPUs.

Number of displays supported

3

no data

Graphics image quality

Maximum display resolutions supported by Core i5-8400B and Core i5-9300HF integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@30Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Core i5-8400B and Core i5-9300HF integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i5-8400B and Core i5-9300HF.

PCIe version	3.0	3.0
PCI Express lanes	16	16

Pros & cons summary

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Recency	2 April 2018	30 April 2019
Physical cores	6	4
Threads	6	8
Power consumption (TDP)	65 Watt	45 Watt

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Should you still have questions on choice between Core i5-8400B and Core i5-9300HF, ask them in Comments section, and we shall answer.

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