Ultra 9 285 vs Xeon E3-1281 v3

Primary details

Comparing Xeon E3-1281 v3 and Core Ultra 9 285 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1272	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	5.41	no data
Architecture codename	no data	Arrow Lake-S (2024−2025)
Release date	1 April 2014 (10 years ago)	January 2025

Detailed specifications

Xeon E3-1281 v3 and Core Ultra 9 285 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	4 (Quad-Core)	24 (Tetracosa-Core)
Threads	8	24
Base clock speed	3.7 GHz	2.5 GHz
Boost clock speed	4.1 GHz	5.6 GHz
Bus rate	5 GT/s	no data
L1 cache	no data	112 KB (per core)
L2 cache	no data	3 MB (per core)
L3 cache	8 MB Intel® Smart Cache	36 MB (shared)
Chip lithography	22 nm	3 nm
Die size	no data	243 mm2
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E3-1281 v3 and Core Ultra 9 285 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	1
Socket	FCLGA1150	1851
Power consumption (TDP)	82 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E3-1281 v3 and Core Ultra 9 285. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
SIPP	+	-
Fast Memory Access	+	no data

Security technologies

Xeon E3-1281 v3 and Core Ultra 9 285 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E3-1281 v3 and Core Ultra 9 285 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E3-1281 v3 and Core Ultra 9 285. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3L-1333, DDR3L-1600	DDR5 Depends on motherboard
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Arc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon E3-1281 v3 and Core Ultra 9 285.

PCIe version	3.0	5.0
PCI Express lanes	16	20

Pros & cons summary

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Physical cores	4	24
Threads	8	24
Chip lithography	22 nm	3 nm
Power consumption (TDP)	82 Watt	125 Watt

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Should you still have questions on choice between Xeon E3-1281 v3 and Core Ultra 9 285, ask them in Comments section, and we shall answer.

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