i7-1255U vs Xeon E7-4820 v2

Primary details

Comparing Xeon E7-4820 v2 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	no data	Intel Alder Lake-M
Power efficiency	no data	53.88
Architecture codename	no data	Alder Lake-U (2022)
Release date	1 January 2014 (10 years ago)	23 February 2022 (2 years ago)

Detailed specifications

Xeon E7-4820 v2 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 GHz	1.7 GHz
Boost clock speed	2.5 GHz	4.7 GHz
Bus rate	7.2 GT/s	no data
L1 cache	no data	80K (per core)
L2 cache	no data	1.25 MB (per core)
L3 cache	16 MB	12 MB (shared)
Chip lithography	22 nm	Intel 7 nm
Maximum core temperature	68 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Xeon E7-4820 v2 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	4	1
Socket	FCLGA2011	FCBGA1744
Power consumption (TDP)	105 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E7-4820 v2 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	no data	+
PAE	46 Bit	no data
Deep Learning Boost	-	+

Security technologies

Xeon E7-4820 v2 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E7-4820 v2 and Core i7-1255U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E7-4820 v2 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-1066, DDR3-1333, DDR3-1600	DDR4, DDR5
Maximum memory size	1.5 TB	64 GB
Max memory channels	4	2
Maximum memory bandwidth	68 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 Xeon E7-4820 v2 and Core i7-1255U integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon E7-4820 v2 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 Xeon E7-4820 v2 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 Xeon E7-4820 v2 and Core i7-1255U.

PCIe version	3.0	4.0
PCI Express lanes	32	20

Pros & cons summary

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Recency	1 January 2014	23 February 2022
Physical cores	8	10
Threads	16	12
Power consumption (TDP)	105 Watt	15 Watt

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Should you still have questions on choice between Xeon E7-4820 v2 and Core i7-1255U, ask them in Comments section, and we shall answer.

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