i3-8121U vs Pentium Gold G5420

Primary details

Comparing Pentium Gold G5420 and Core i3-8121U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1778	1681
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	13.14	no data
Market segment	Desktop processor	Laptop
Series	Intel Pentium Gold	Intel Core i3
Power efficiency	4.14	17.45
Architecture codename	Coffee Lake (2017−2019)	Coffee Lake-U (2018−2019)
Release date	23 April 2019 (5 years ago)	15 May 2018 (6 years ago)
Launch price (MSRP)	$64	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Pentium Gold G5420 and Core i3-8121U 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)	2 (Dual-core)
Threads	4	4
Base clock speed	3.8 GHz	2.2 GHz
Boost clock speed	3.8 GHz	3.2 GHz
Bus type	DMI 3.0	OPI
Bus rate	4 × 8 GT/s	4 GT/s
Multiplier	no data	22
L1 cache	128 KB	128 KB
L2 cache	512 KB	512 KB
L3 cache	4 MB	4 MB (shared)
Chip lithography	14 nm	10 nm
Die size	126 mm2	123 mm2
Maximum core temperature	100 °C	105 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Pentium Gold G5420 and Core i3-8121U 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 (Uniprocessor)
Socket	FCLGA1151	Intel BGA1440
Power consumption (TDP)	54 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium Gold G5420 and Core i3-8121U. 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® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	-	+
vPro	no data	-
Enhanced SpeedStep (EIST)	+	+
QuickAssist	no data	-
Speed Shift	no data	+
My WiFi	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	no data	+
Smart Response	no data	+
Demand Based Switching	no data	-
HD Audio	no data	+
RST	no data	+

Security technologies

Pentium Gold G5420 and Core i3-8121U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium Gold G5420 and Core i3-8121U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium Gold G5420 and Core i3-8121U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR4
Maximum memory size	64 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	38.397 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel UHD Graphics 610	Iris Pro Plus
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 Pentium Gold G5420 and Core i3-8121U integrated GPUs.

Number of displays supported

3

no data

Graphics image quality

Maximum display resolutions supported by Pentium Gold G5420 and Core i3-8121U integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Pentium Gold G5420 and Core i3-8121U integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Pentium Gold G5420 and Core i3-8121U.

PCIe version	3.0	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	2.45	2.87
Recency	23 April 2019	15 May 2018
Chip lithography	14 nm	10 nm
Power consumption (TDP)	54 Watt	15 Watt

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Should you still have questions on choice between Pentium Gold G5420 and Core i3-8121U, ask them in Comments section, and we shall answer.

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