Ultra 7 265T vs Ryzen 7 3800X

Primary details

Comparing Ryzen 7 3800X and Core Ultra 7 265T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	487	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	15.87	no data
Market segment	Desktop processor	Desktop processor
Series	AMD Ryzen 7	no data
Power efficiency	13.13	no data
Architecture codename	Matisse (2019−2020)	Arrow Lake-S (2024−2025)
Release date	7 July 2019 (5 years ago)	January 2025
Launch price (MSRP)	$399	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 7 3800X and Core Ultra 7 265T 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	8 (Octa-Core)	20 (Icosa-Core)
Threads	16	20
Base clock speed	3.9 GHz	1.5 GHz
Boost clock speed	4.5 GHz	5.3 GHz
L1 cache	96K (per core)	112 KB (per core)
L2 cache	512K (per core)	3 MB (per core)
L3 cache	32 MB	30 MB (shared)
Chip lithography	7 nm, 12 nm	3 nm
Die size	no data	243 mm2
Number of transistors	19,200 million	17,800 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 7 3800X and Core Ultra 7 265T 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	AM4	1851
Power consumption (TDP)	105 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 3800X and Core Ultra 7 265T. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
TSX	-	+
Precision Boost 2	+	no data

Security technologies

Ryzen 7 3800X and Core Ultra 7 265T technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 3800X and Core Ultra 7 265T are enumerated here.

AMD-V	+	-
VT-d	no data	+
VT-x	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 3800X and Core Ultra 7 265T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Dual-channel	DDR5
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

Arc Xe-LPG Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 3800X and Core Ultra 7 265T.

PCIe version	no data	5.0
PCI Express lanes	no data	20

Pros & cons summary

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Physical cores	8	20
Threads	16	20
Chip lithography	7 nm	3 nm
Power consumption (TDP)	105 Watt	35 Watt

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Should you still have questions on choice between Ryzen 7 3800X and Core Ultra 7 265T, ask them in Comments section, and we shall answer.

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