Ultra 7 265K vs Atom C3958

Primary details

Comparing Atom C3958 and Core Ultra 7 265K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1759	88
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.55	94.18
Market segment	Server	Desktop processor
Series	Intel Atom	no data
Power efficiency	7.50	27.96
Architecture codename	Goldmont (2016−2017)	Arrow Lake-S (2024−2025)
Release date	15 August 2017 (7 years ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	$449	$394

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 7 265K has 17024% better value for money than Atom C3958.

Detailed specifications

Atom C3958 and Core Ultra 7 265K 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	16 (Hexadeca-Core)	20 (Icosa-Core)
Threads	16	20
Base clock speed	2 GHz	3.9 GHz
Boost clock speed	2 GHz	5.5 GHz
Multiplier	20	no data
L1 cache	896 KB	112 KB (per core)
L2 cache	16 MB	3 MB (per core)
L3 cache	16 MB	30 MB (shared)
Chip lithography	14 nm	3 nm
Die size	no data	243 mm2
Maximum core temperature	83 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	-	+

Compatibility

Information on Atom C3958 and Core Ultra 7 265K 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 (Uniprocessor)	1
Socket	FCBGA1310	1851
Power consumption (TDP)	31 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Atom C3958 and Core Ultra 7 265K. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	-	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
QuickAssist	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
TSX	-	+
SIPP	-	+

Security technologies

Atom C3958 and Core Ultra 7 265K technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	no data
Secure Boot	+	no data
Secure Key	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Atom C3958 and Core Ultra 7 265K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Atom C3958 and Core Ultra 7 265K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4: 2400	DDR5 Depends on motherboard
Maximum memory size	256 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	38.397 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 Atom C3958 and Core Ultra 7 265K.

PCIe version	3	5.0
PCI Express lanes	16	20
USB revision	3	no data
Total number of SATA ports	16	no data
Max number of SATA 6 Gb/s Ports	16	no data
Number of USB ports	8	no data
Integrated LAN	4x10/2.5/1 GBE	no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	2.47	37.13
Recency	15 August 2017	24 October 2024
Physical cores	16	20
Threads	16	20
Chip lithography	14 nm	3 nm
Power consumption (TDP)	31 Watt	125 Watt

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Should you still have questions on choice between Atom C3958 and Core Ultra 7 265K, ask them in Comments section, and we shall answer.

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