i5-8259U vs Celeron 857

Primary details

Comparing Celeron 857 and Core i5-8259U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	1222
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Core i5
Power efficiency	no data	16.76
Architecture codename	Sandy Bridge (2011−2013)	Coffee Lake-U (2018−2019)
Release date	1 July 2011 (13 years ago)	2 April 2018 (6 years ago)
Launch price (MSRP)	$134	$320

Detailed specifications

Celeron 857 and Core i5-8259U 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	2	8
Base clock speed	1.2 GHz	2.3 GHz
Boost clock speed	1.2 GHz	3.8 GHz
Bus type	DMI 2.0	OPI
Bus rate	4 × 5 GT/s	4 GT/s
Multiplier	12	23
L1 cache	128 KB	256 KB
L2 cache	512 KB	1 MB
L3 cache	2 MB (shared)	6 MB (shared)
Chip lithography	32 nm	14 nm
Die size	131 mm2	126 mm2
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Celeron 857 and Core i5-8259U 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	FCBGA1023	FCBGA1528
Power consumption (TDP)	17 Watt	28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron 857 and Core i5-8259U. 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	-	+
FMA	+	-
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
eDRAM	no data	128 MB
Speed Shift	no data	+
My WiFi	-	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Celeron 857 and Core i5-8259U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron 857 and Core i5-8259U are enumerated here.

AMD-V	-	+
VT-d	-	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron 857 and Core i5-8259U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4
Maximum memory size	16 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	38.397 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel Iris Plus Graphics 655
Max video memory	no data	32 GB
Quick Sync Video	-	+
Clear Video	no data	+
Clear Video HD	-	+
Graphics max frequency	1 GHz	1.05 GHz
InTru 3D	-	+

Graphics interfaces

Available interfaces and connections of Celeron 857 and Core i5-8259U integrated GPUs.

Number of displays supported	2	3
eDP	+	+
DisplayPort	+	+
HDMI	+	+
DVI	no data	+
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron 857 and Core i5-8259U integrated GPUs, including resolutions over different interfaces.

4K resolution support	no data	+
Max resolution over HDMI 1.4	no data	4096x2304@30Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	4096x2304@60Hz

Graphics API support

APIs supported by Celeron 857 and Core i5-8259U integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

Specifications and connection of peripherals supported by Celeron 857 and Core i5-8259U.

PCIe version	2.0	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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Pros & cons summary

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Recency	1 July 2011	2 April 2018
Physical cores	2	4
Threads	2	8
Chip lithography	32 nm	14 nm
Power consumption (TDP)	17 Watt	28 Watt

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Should you still have questions on choice between Celeron 857 and Core i5-8259U, ask them in Comments section, and we shall answer.

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