i3-9350KF vs i3-8121U

Primary details

Comparing Core i3-8121U and Core i3-9350KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1683	1251
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	7.27
Market segment	Laptop	Desktop processor
Series	Intel Core i3	Intel Core i3
Power efficiency	17.46	4.94
Architecture codename	Coffee Lake-U (2018−2019)	Coffee Lake (2017−2019)
Release date	15 May 2018 (6 years ago)	8 January 2019 (5 years ago)
Launch price (MSRP)	no data	$173

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i3-8121U and Core i3-9350KF 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)	4 (Quad-Core)
Threads	4	4
Base clock speed	2.2 GHz	4 GHz
Boost clock speed	3.2 GHz	4.6 GHz
Bus type	OPI	DMI 3.0
Bus rate	4 GT/s	4 × 8 GT/s
Multiplier	22	40
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	4 MB (shared)	6 MB (shared)
Chip lithography	10 nm	14 nm
Die size	123 mm2	126 mm2
Maximum core temperature	105 °C	100 °C
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i3-8121U and Core i3-9350KF 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	Intel BGA1440	FCLGA1151
Power consumption (TDP)	15 Watt	91 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8121U and Core i3-9350KF. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
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	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

Core i3-8121U and Core i3-9350KF 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 Core i3-8121U and Core i3-9350KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8121U and Core i3-9350KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-2400
Maximum memory size	32 GB	64 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

Iris Pro Plus

no data

Peripherals

Specifications and connection of peripherals supported by Core i3-8121U and Core i3-9350KF.

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	2.86	4.91
Recency	15 May 2018	8 January 2019
Physical cores	2	4
Chip lithography	10 nm	14 nm
Power consumption (TDP)	15 Watt	91 Watt

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Should you still have questions on choice between Core i3-8121U and Core i3-9350KF, ask them in Comments section, and we shall answer.

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