Core i5-9400F vs Pentium 3805U

Primary details

Comparing Pentium 3805U and Core i5-9400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2552	1021
Place by popularity	not in top-100	29
Cost-effectiveness evaluation	no data	17.60
Market segment	Laptop	Desktop processor
Series	Intel Pentium	Intel Core i5
Architecture codename	Broadwell-U (2015)	Coffee Lake-R (2018−2019)
Release date	1 March 2015 (9 years ago)	8 January 2019 (5 years ago)
Launch price (MSRP)	$161	$182
Current price	$317 (2x MSRP)	$129 (0.7x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium 3805U and Core i5-9400F 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	2 (Dual-core)	6 (Hexa-Core)
Threads	2	6
Base clock speed	1.9 GHz	2.9 GHz
Boost clock speed	1.9 GHz	4.1 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	256K (per core)	256K (per core)
L3 cache	2 MB (shared)	9 MB (shared)
Chip lithography	14 nm	14 nm
Die size	82 mm2	149 mm2
Maximum core temperature	105 °C	100 °C
Maximum case temperature (TCase)	105 °C	72 °C
Number of transistors	1300 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No

Compatibility

Information on Pentium 3805U and Core i5-9400F 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	1
Socket	FCBGA1168	FCLGA1151
Power consumption (TDP)	15 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium 3805U and Core i5-9400F. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	-
TSX	-	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	-	-
Smart Response	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Status	Discontinued	Discontinued

Security technologies

Pentium 3805U and Core i5-9400F technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium 3805U and Core i5-9400F are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium 3805U and Core i5-9400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-2666
Maximum memory size	16 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	25.6 GB/s	41.6 GB/s
ECC memory support	no data	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 5th Generation Intel® Processors	no data
Quick Sync Video	+	no data
Clear Video	+	no data
Graphics max frequency	800 MHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Pentium 3805U and Core i5-9400F integrated GPUs.

Number of displays supported	3	no data
eDP	+	no data
DisplayPort	+	no data
HDMI	+	no data

Graphics API support

APIs supported by Pentium 3805U and Core i5-9400F integrated GPUs, sometimes API versions are included.

DirectX

11.2/12

no data

Peripherals

Specifications and connection of peripherals supported by Pentium 3805U and Core i5-9400F.

PCIe version	2.0	3.0
PCI Express lanes	12	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.

Core i5-9400F outperforms Pentium 3805U by 705% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	0.76	6.12
Recency	1 March 2015	8 January 2019
Physical cores	2	6
Threads	2	6
Cost	$161	$182
Power consumption (TDP)	15 Watt	65 Watt

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Should you still have questions on choice between Pentium 3805U and Core i5-9400F, ask them in Comments section, and we shall answer.

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