i7-1255U vs Xeon E7-8891 v4

Primary details

Comparing Xeon E7-8891 v4 and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	896
Place by popularity	not in top-100	74
Market segment	Server	Laptop
Series	no data	Intel Alder Lake-M
Power efficiency	no data	53.78
Architecture codename	no data	Alder Lake-U (2022)
Release date	1 April 2016 (8 years ago)	23 February 2022 (2 years ago)

Detailed specifications

Xeon E7-8891 v4 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	10 (Deca-Core)	10 (Deca-Core)
Threads	20	12
Base clock speed	2.8 GHz	1.7 GHz
Boost clock speed	3.5 GHz	4.7 GHz
Bus rate	9.6 GT/s	no data
L1 cache	no data	80K (per core)
L2 cache	no data	1.25 MB (per core)
L3 cache	60 MB	12 MB (shared)
Chip lithography	14 nm	10 nm
Maximum core temperature	79 °C	100 °C
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Xeon E7-8891 v4 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	8	1
Socket	FCLGA2011	Intel BGA 1744
Power consumption (TDP)	165 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E7-8891 v4 and Core i7-1255U. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	no data
AES-NI	+	+
FMA	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
PAE	46 Bit	no data

Security technologies

Xeon E7-8891 v4 and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E7-8891 v4 and Core i7-1255U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E7-8891 v4 and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1333, DDR4-1600, DDR4-1866, DDR3-1066, DDR3-1333, DDR3-1600	DDR4, DDR5
Maximum memory size	3 TB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85 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 G7 96EUs ( - 1250 MHz)

Peripherals

Specifications and connection of peripherals supported by Xeon E7-8891 v4 and Core i7-1255U.

PCIe version	3.0	4.0
PCI Express lanes	32	20

Pros & cons summary

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Recency	1 April 2016	23 February 2022
Threads	20	12
Chip lithography	14 nm	10 nm
Power consumption (TDP)	165 Watt	15 Watt

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Should you still have questions on choice between Xeon E7-8891 v4 and Core i7-1255U, ask them in Comments section, and we shall answer.

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