i7-1255U vs EPYC Embedded 3251

Primary details

Comparing EPYC Embedded 3251 and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	881
Place by popularity	not in top-100	37
Market segment	Server	Laptop
Series	AMD EPYC Embedded	Intel Alder Lake-M
Power efficiency	no data	53.93
Architecture codename	Zen (2017−2020)	Alder Lake-U (2022)
Release date	21 February 2018 (6 years ago)	23 February 2022 (2 years ago)
Launch price (MSRP)	$315	no data

Detailed specifications

EPYC Embedded 3251 and Core i7-1255U 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	8 (Octa-Core)	10 (Deca-Core)
Threads	16	12
Base clock speed	2.5 GHz	1.7 GHz
Boost clock speed	2.5 GHz	4.7 GHz
Multiplier	25	no data
L1 cache	768 KB	80K (per core)
L2 cache	4 MB	1.25 MB (per core)
L3 cache	16 MB (shared)	12 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	213 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	4800 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on EPYC Embedded 3251 and Core i7-1255U 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	TR4	FCBGA1744
Power consumption (TDP)	55 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC Embedded 3251 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
FMA	-	+
AVX	+	+
Enhanced SpeedStep (EIST)	no data	+
Speed Shift	no data	+
Hyper-Threading Technology	no data	+
TSX	-	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
Deep Learning Boost	-	+

Security technologies

EPYC Embedded 3251 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC Embedded 3251 and Core i7-1255U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4, DDR5
Maximum memory size	512 GB	64 GB
Max memory channels	2	2
Maximum memory bandwidth	42.671 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® Iris® Xe Graphics eligible
Quick Sync Video	-	+
Graphics max frequency	no data	1.25 GHz
Execution Units	no data	96

Graphics interfaces

Available interfaces and connections of EPYC Embedded 3251 and Core i7-1255U integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by EPYC Embedded 3251 and Core i7-1255U 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 EPYC Embedded 3251 and Core i7-1255U 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 EPYC Embedded 3251 and Core i7-1255U.

PCIe version	no data	4.0
PCI Express lanes	no data	20

Pros & cons summary

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Recency	21 February 2018	23 February 2022
Physical cores	8	10
Threads	16	12
Power consumption (TDP)	55 Watt	15 Watt

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