Ultra 9 285T vs Xeon E5345

Primary details

Comparing Xeon E5345 and Core Ultra 9 285T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2356	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.06	no data
Market segment	Server	Desktop processor
Power efficiency	1.40	no data
Architecture codename	Clovertown (2006−2007)	Arrow Lake-S (2024−2025)
Release date	14 November 2006 (18 years ago)	January 2025
Launch price (MSRP)	$851	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5345 and Core Ultra 9 285T 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	4	24
Base clock speed	2.33 GHz	1.4 GHz
Boost clock speed	0.33 GHz	5.4 GHz
L1 cache	64 KB (per core)	112 KB (per core)
L2 cache	4 MB (per die)	3 MB (per core)
L3 cache	8 MB L2 Cache	36 MB (shared)
Chip lithography	65 nm	3 nm
Die size	2x 143 mm2	243 mm2
Maximum case temperature (TCase)	66 °C	no data
Number of transistors	582 million	17,800 million
64 bit support	+	+
VID voltage range	1V-1.5V	no data

Compatibility

Information on Xeon E5345 and Core Ultra 9 285T 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	2	1
Socket	LGA771,PLGA771	1851
Power consumption (TDP)	80 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5345 and Core Ultra 9 285T. You'll probably need this information if you require some particular technology.

AES-NI	-	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Demand Based Switching	+	no data
PAE	32 Bit	no data
FSB parity	+	no data

Security technologies

Xeon E5345 and Core Ultra 9 285T technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5345 and Core Ultra 9 285T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5345 and Core Ultra 9 285T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR2, DDR3 Depends on motherboard

DDR5 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

Arc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon E5345 and Core Ultra 9 285T.

PCIe version	no data	5.0
PCI Express lanes	no data	20

Pros & cons summary

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Physical cores	4	24
Threads	4	24
Chip lithography	65 nm	3 nm
Power consumption (TDP)	80 Watt	35 Watt

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Should you still have questions on choice between Xeon E5345 and Core Ultra 9 285T, ask them in Comments section, and we shall answer.

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