Ultra 5 245KF vs Xeon E7-2803

Primary details

Comparing Xeon E7-2803 and Core Ultra 5 245KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	168
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	79.32
Market segment	Server	Desktop processor
Series	Intel Xeon E7	no data
Power efficiency	no data	21.16
Architecture codename	Westmere (2010−2011)	Arrow Lake-S (2024−2025)
Release date	5 April 2011 (13 years ago)	24 October 2024 (recently)
Launch price (MSRP)	$774	$294

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E7-2803 and Core Ultra 5 245KF 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	6 (Hexa-Core)	14 (Tetradeca-Core)
Threads	12	14
Base clock speed	1.73 GHz	4.2 GHz
Boost clock speed	0.03 GHz	5.2 GHz
Bus type	QPI	no data
Bus rate	4.8 GT/s	no data
Multiplier	13	no data
L1 cache	384 KB	112 KB (per core)
L2 cache	1.5 MB	3 MB (per core)
L3 cache	18 MB	24 MB (shared)
Chip lithography	32 nm	3 nm
Die size	513 mm2	243 mm2
Maximum core temperature	64 °C	no data
Number of transistors	2600 Million	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E7-2803 and Core Ultra 5 245KF 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 (Multiprocessor)	1
Socket	FCLGA1567,LGA1567	1851
Power consumption (TDP)	105 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E7-2803 and Core Ultra 5 245KF. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	+	no data
TSX	-	+
Thermal Monitoring	+	-

Security technologies

Xeon E7-2803 and Core Ultra 5 245KF 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 E7-2803 and Core Ultra 5 245KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E7-2803 and Core Ultra 5 245KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-800	DDR5
Maximum memory size	1 TB	no data
Max memory channels	4	no data
Maximum memory bandwidth	25.598 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon E7-2803 and Core Ultra 5 245KF.

PCIe version	no data	5.0
PCI Express lanes	no data	20

Pros & cons summary

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Recency	5 April 2011	24 October 2024
Physical cores	6	14
Threads	12	14
Chip lithography	32 nm	3 nm
Power consumption (TDP)	105 Watt	125 Watt

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Should you still have questions on choice between Xeon E7-2803 and Core Ultra 5 245KF, ask them in Comments section, and we shall answer.

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