i7-1250U vs Celeron B815

Primary details

Comparing Celeron B815 and Core i7-1250U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	971
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Celeron	Intel Alder Lake-M
Power efficiency	no data	77.00
Architecture codename	Sandy Bridge (2011−2013)	Alder Lake-U (2022)
Release date	1 January 2012 (12 years ago)	23 February 2022 (2 years ago)
Launch price (MSRP)	$86	no data

Detailed specifications

Celeron B815 and Core i7-1250U 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)	10 (Deca-Core)
Threads	2	12
Base clock speed	1.6 GHz	1.1 GHz
Boost clock speed	1.6 GHz	4.7 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	no data
Multiplier	16	no data
L1 cache	128 KB	80K (per core)
L2 cache	512 KB	1.25 MB (per core)
L3 cache	2 MB (shared)	12 MB (shared)
Chip lithography	32 nm	Intel 7 nm
Die size	131 mm2	no data
Maximum core temperature	100 °C	100 °C
Number of transistors	504 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Celeron B815 and Core i7-1250U 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	FCPGA988,PGA988	FCBGA1781
Power consumption (TDP)	35 Watt	9 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B815 and Core i7-1250U. 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)	+	+
Speed Shift	no data	+
My WiFi	-	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	+	-
Demand Based Switching	-	no data
FDI	+	no data
Fast Memory Access	+	no data
Deep Learning Boost	-	+

Security technologies

Celeron B815 and Core i7-1250U technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+
Anti-Theft	-	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B815 and Core i7-1250U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B815 and Core i7-1250U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4, DDR5
Maximum memory size	16 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	21.335 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for 2nd Generation Intel® Processors	Intel® Iris® Xe Graphics eligible
Quick Sync Video	-	+
Graphics max frequency	1.05 GHz	950 MHz
Execution Units	no data	96

Graphics interfaces

Available interfaces and connections of Celeron B815 and Core i7-1250U integrated GPUs.

Number of displays supported	2	4
eDP	+	no data
DisplayPort	+	-
HDMI	+	-
SDVO	+	no data
CRT	+	no data

Graphics image quality

Maximum display resolutions supported by Celeron B815 and Core i7-1250U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2304 @ 60Hz
Max resolution over eDP	no data	4096 x 2304 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Celeron B815 and Core i7-1250U integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Celeron B815 and Core i7-1250U.

PCIe version	2.0	4.0
PCI Express lanes	16	14

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 January 2012	23 February 2022
Physical cores	2	10
Threads	2	12
Power consumption (TDP)	35 Watt	9 Watt

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Should you still have questions on choice between Celeron B815 and Core i7-1250U, ask them in Comments section, and we shall answer.

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