Celeron J3455 vs i3-8121U

Primary details

Comparing Core i3-8121U and Celeron J3455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1699	2208
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.22
Market segment	Laptop	Desktop processor
Series	Intel Core i3	Intel Celeron
Power efficiency	9.33	13.44
Architecture codename	Coffee Lake-U (2018−2019)	Apollo Lake (2014−2016)
Release date	5 May 2018 (6 years ago)	30 August 2016 (8 years ago)
Launch price (MSRP)	no data	$107

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i3-8121U and Celeron J3455 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	1.5 GHz
Boost clock speed	3.2 GHz	2.3 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	22	15
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	2 MB
L3 cache	4 MB (shared)	0 KB
Chip lithography	10 nm	14 nm
Die size	123 mm2	no data
Maximum core temperature	105 °C	105 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i3-8121U and Celeron J3455 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	FCBGA1296
Power consumption (TDP)	15 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8121U and Celeron J3455. 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	no data
AES-NI	+	+
AVX	+	-
vPro	-	-
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	+	-
Demand Based Switching	-	no data
GPIO	no data	+
Smart Connect	no data	-
HD Audio	+	+
RST	+	-

Security technologies

Core i3-8121U and Celeron J3455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Boot	no data	+
Secure Key	+	+
MPX	+	-
Identity Protection	-	+
SGX	-	no data
OS Guard	+	-
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-8121U and Celeron J3455 are enumerated here.

VT-d	+	+
VT-x	+	+
VT-i	-	-
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8121U and Celeron J3455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s
Maximum memory size	32 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	38.397 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Iris Pro Plus	Intel HD Graphics 500
Max video memory	no data	8 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	no data	750 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Core i3-8121U and Celeron J3455 integrated GPUs.

Number of displays supported	no data	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
MIPI-DSI	no data	+

Graphics API support

APIs supported by Core i3-8121U and Celeron J3455 integrated GPUs, sometimes API versions are included.

DirectX	no data	+
OpenGL	no data	+

Peripherals

Specifications and connection of peripherals supported by Core i3-8121U and Celeron J3455.

PCIe version	3.0	2.0
PCI Express lanes	16	6
USB revision	no data	2.0/3.0
Total number of SATA ports	no data	2
Max number of SATA 6 Gb/s Ports	no data	2
Number of USB ports	no data	8
Integrated LAN	no data	-
UART	no data	+

Synthetic benchmark performance

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

---

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.

---

Pros & cons summary

---

Performance score	2.76	1.42
Recency	5 May 2018	30 August 2016
Physical cores	2	4
Chip lithography	10 nm	14 nm
Power consumption (TDP)	15 Watt	10 Watt

---

Should you still have questions on choice between Core i3-8121U and Celeron J3455, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---