Celeron J3455E vs i5-8259U

Primary details

Comparing Core i5-8259U and Celeron J3455E processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1222	2218
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i5	no data
Power efficiency	16.76	13.06
Architecture codename	Coffee Lake-U (2018−2019)	no data
Release date	5 April 2018 (6 years ago)	1 July 2019 (5 years ago)
Launch price (MSRP)	$320	no data

Detailed specifications

Core i5-8259U and Celeron J3455E 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	4 (Quad-Core)	no data
Threads	8	4
Base clock speed	2.3 GHz	1.5 GHz
Boost clock speed	3.8 GHz	2.3 GHz
Bus type	OPI	no data
Bus rate	4 GT/s	no data
Multiplier	23	no data
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	6 MB (shared)	2 MB
Chip lithography	14 nm	14 nm
Die size	126 mm2	no data
Maximum core temperature	100 °C	105 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Core i5-8259U and Celeron J3455E 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	FCBGA1528	no data
Power consumption (TDP)	28 Watt	10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-8259U and Celeron J3455E. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
eDRAM	128 MB	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	-

Security technologies

Core i5-8259U and Celeron J3455E technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-8259U and Celeron J3455E are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-8259U and Celeron J3455E. 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 Compare	Intel Iris Plus Graphics 655	Intel HD Graphics 500
Max video memory	32 GB	8 GB
Quick Sync Video	+	+
Clear Video	+	+
Clear Video HD	+	+
Graphics max frequency	1.05 GHz	750 MHz
Execution Units	no data	12
InTru 3D	+	-

Graphics interfaces

Available interfaces and connections of Core i5-8259U and Celeron J3455E integrated GPUs.

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

Graphics image quality

Maximum display resolutions supported by Core i5-8259U and Celeron J3455E 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 i5-8259U and Celeron J3455E integrated GPUs, sometimes API versions are included.

DirectX	12	+
OpenGL	4.5	+

Peripherals

Specifications and connection of peripherals supported by Core i5-8259U and Celeron J3455E.

PCIe version	3.0	2.0
PCI Express lanes	16	6

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	4.96	1.38
Integrated graphics card	4.49	0.77
Recency	5 April 2018	1 July 2019
Threads	8	4
Power consumption (TDP)	28 Watt	10 Watt

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Should you still have questions on choice between Core i5-8259U and Celeron J3455E, ask them in Comments section, and we shall answer.

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