Ultra 7 265KF vs Ryzen 7 5800U

VS

Aggregate performance score

Ryzen 7 5800U
2021
8 cores / 16 threads, 15 Watt
11.57
Core Ultra 7 265KF
2024
20 cores / 20 threads, 125 Watt
37.07
+220%

Core Ultra 7 265KF outperforms Ryzen 7 5800U by a whopping 220% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 5800U and Core Ultra 7 265KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking67889
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data97.72
Market segmentLaptopDesktop processor
SeriesAMD Cezanne (Zen 3, Ryzen 5000)no data
Power efficiency73.0028.07
Architecture codenameCezanne-U (Zen 3) (2021)Arrow Lake-S (2024−2025)
Release date12 January 2021 (3 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)no data$379

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 7 5800U and Core Ultra 7 265KF 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 cores8 (Octa-Core)20 (Icosa-Core)
Threads1620
Base clock speed1.9 GHz3.9 GHz
Boost clock speed4.4 GHz5.5 GHz
Multiplier19no data
L1 cache512 KB112 KB (per core)
L2 cache4 MB3 MB (per core)
L3 cache16 MB (shared)30 MB (shared)
Chip lithography7 nm3 nm
Die size180 mm2243 mm2
Maximum core temperature105 °Cno data
Number of transistors10,700 million17,800 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier-+

Compatibility

Information on Ryzen 7 5800U and Core Ultra 7 265KF 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 configuration11
SocketFP61851
Power consumption (TDP)15 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 5800U and Core Ultra 7 265KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SMEno data
AES-NI++
FMA+-
AVX++
Enhanced SpeedStep (EIST)no data+
TSX-+

Security technologies

Ryzen 7 5800U and Core Ultra 7 265KF technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 5800U and Core Ultra 7 265KF are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 5800U and Core Ultra 7 265KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 2000 MHz)N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 5800U and Core Ultra 7 265KF.

PCIe version3.05.0
PCI Express lanes820

Synthetic benchmark performance

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


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.

Ryzen 7 5800U 11.57
Ultra 7 265KF 37.07
+220%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Ryzen 7 5800U 18382
Ultra 7 265KF 58883
+220%

Gaming performance

Pros & cons summary


Performance score 11.57 37.07
Recency 12 January 2021 24 October 2024
Physical cores 8 20
Threads 16 20
Chip lithography 7 nm 3 nm
Power consumption (TDP) 15 Watt 125 Watt

Ryzen 7 5800U has 733.3% lower power consumption.

Ultra 7 265KF, on the other hand, has a 220.4% higher aggregate performance score, an age advantage of 3 years, 150% more physical cores and 25% more threads, and a 133.3% more advanced lithography process.

The Core Ultra 7 265KF is our recommended choice as it beats the Ryzen 7 5800U in performance tests.

Be aware that Ryzen 7 5800U is a notebook processor while Core Ultra 7 265KF is a desktop one.


Should you still have questions on choice between Ryzen 7 5800U and Core Ultra 7 265KF, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Ryzen 7 5800U
Ryzen 7 5800U
Intel Core Ultra 7 265KF
Core Ultra 7 265KF

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Community ratings

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Questions & comments

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