INTEL

Intel Core Ultra 5 250KF Plus

Intel processor specifications and benchmark scores

18
Cores
18
Threads
5.3
GHz Boost
125W
TDP
Unlocked ECC Memory

At a Glance

Intel
Cores / Threads 18C / 18T
Boost Clock 5.3 GHz
Base Clock 4.2 GHz
L3 Cache 30 MB (shared)
TDP 125W
Socket Intel Socket 1851
nm
Process 3 nm
Released Mar 2026

Intel Core Ultra 5 250KF Plus Specifications

Core Ultra 5 250KF Plus Core Configuration

Processing cores and threading

The Intel Core Ultra 5 250KF Plus features 18 physical cores and 18 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
18
Threads
18
Hybrid Cores
P-Cores: 6 E-Cores: 12
SMP CPUs
1

Ultra 5 250KF Plus Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core Ultra 5 250KF Plus benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core Ultra 5 250KF Plus by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
4.2 GHz
Boost Clock
5.3 GHz
E-Core Frequency
3.3 GHz up to 4.6 GHz
Multiplier
42x (Unlocked)

Intel's Core Ultra 5 250KF Plus Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Ultra 5 250KF Plus processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core Ultra 5 250KF Plus's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
192 KB (per core)
L2 Cache
3 MB (per core)
L3 Cache
30 MB (shared)

Intel Architecture & Process

Manufacturing and design details

The Intel Core Ultra 5 250KF Plus is built on Intel's 3 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in Ultra 5 250KF Plus incorporate advanced branch prediction and out-of-order execution for optimal performance.

Codename
Arrow Lake Refresh
Process Node
3 nm
Foundry
TSMC
Transistors
17,800 million
Die Size
243 mm²
Generation
Ultra 5 (Arrow Lake)

Ultra 5 250KF Plus Power & Thermal

TDP and power specifications

The Intel Core Ultra 5 250KF Plus has a TDP (Thermal Design Power) of 125W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
125W
PL1 (Base Power)
159 W
PL2 (Turbo Power)
159 W
Tj Max
105°C

Intel Socket 1851 Platform & Socket

Compatibility information

The Core Ultra 5 250KF Plus uses the Intel Socket 1851 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 1851
Chipsets
Z890, B860, W880, Q870, H810
PCIe
Gen 5, 20 Lanes(CPU only)
Package
FC-LGA18W
DDR5

Intel Socket 1851 Memory Support

RAM compatibility and speeds

Memory support specifications for the Ultra 5 250KF Plus define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core Ultra 5 250KF Plus determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR5
Memory Bus
Dual-channel
Memory Bandwidth
115.2 GB/s
ECC Memory
Supported

Core Ultra 5 250KF Plus Product Information

Release and pricing details

The Intel Core Ultra 5 250KF Plus is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core Ultra 5 250KF Plus by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Mar 2026
Launch Price
$184
Market
Desktop
Status
Active
Part Number
SA4V3

Core Ultra 5 250KF Plus Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core Ultra 5 250KF Plus performs in parallel rendering workloads.

cinebench_cinebench_r15_multicore #159 of 1945
4,296
29%
Max: 14,978

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Core Ultra 5 250KF Plus handles tasks that can't be parallelized.

cinebench_cinebench_r15_singlecore #154 of 1351
606
29%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core Ultra 5 250KF Plus. The more demanding workload provides better differentiation between current-generation processors. Content creators and 3D artists use this benchmark to estimate real-world render performance.

cinebench_cinebench_r20_multicore #159 of 1945
17,902
29%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core Ultra 5 250KF Plus. The increased complexity provides more accurate performance differentiation between modern CPUs. Single-thread performance remains critical for gaming and applications with serial bottlenecks.

cinebench_cinebench_r20_singlecore #154 of 1935
2,527
29%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core Ultra 5 250KF Plus after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss. Professional users rely on R23 scores to predict real-world rendering performance under sustained workloads.

cinebench_cinebench_r23_multicore #159 of 1945
42,624
29%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core Ultra 5 250KF Plus maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance. This score is particularly important for understanding real-world responsiveness beyond initial boost behavior.

cinebench_cinebench_r23_singlecore #146 of 1932
6,017
29%
Max: 20,979

passmark_data_compressionSource

Data compression measures how fast Intel Core Ultra 5 250KF Plus can compress and decompress files. This is important for archiving, backup software, and file transfer applications. Higher scores mean faster ZIP, RAR, and backup operations. Software distribution and cloud storage services benefit from efficient compression performance.

passmark_data_compression #161 of 689
553,155
10%
Max: 5,679,990
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
5,679,990
#2 AMD EPYC 9845
4,680,013
#3 AMD EPYC 9755
4,517,407
#4 AMD EPYC 9745
3,929,890

passmark_data_encryptionSource

Data encryption tests how fast Intel Core Ultra 5 250KF Plus can encrypt information using AES and other algorithms. This is critical for security applications, VPNs, and secure communications. Modern CPUs with AES-NI hardware acceleration score significantly higher.

passmark_data_encryption #107 of 689
41,292
12%
Max: 348,449
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
348,449
#2 AMD EPYC 9845
296,808
#3 AMD EPYC 9755
284,927
#4 AMD EPYC 9754
231,891
#5 AMD EPYC 9745
229,447

passmark_extended_instructionsSource

Extended instructions tests Intel Core Ultra 5 250KF Plus performance using SSE and AVX instruction sets. These specialized instructions accelerate multimedia, scientific, and AI workloads. Video encoding and image processing heavily utilize SIMD capabilities. Machine learning inference and scientific computing also benefit from strong SIMD performance.

passmark_extended_instructions #142 of 689
42,880
11%
Max: 383,298
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
383,298
#2 AMD EPYC 9845
314,798
#3 AMD EPYC 9755
303,321
#4 AMD EPYC 9745
280,477

passmark_find_prime_numbersSource

Find prime numbers tests Intel Core Ultra 5 250KF Plus ability to identify primes through intensive calculations. This is a pure computational benchmark that stresses CPU arithmetic units without memory bottlenecks.

passmark_find_prime_numbers #80 of 689
452
19%
Max: 2,422

passmark_floating_point_mathSource

Floating point math measures how Intel Core Ultra 5 250KF Plus handles decimal calculations critical for scientific computing and 3D rendering. This affects performance in CAD and physics simulations. Game physics engines also rely heavily on floating point operations. Scientific and engineering applications benefit significantly from higher floating point scores.

passmark_floating_point_math #83 of 689
159,824
14%
Max: 1,153,453

passmark_integer_mathSource

Integer math tests how fast Intel Core Ultra 5 250KF Plus processes whole number calculations essential for database operations and compression algorithms. This is fundamental to general computing performance. Encryption and data processing heavily rely on integer operations.

passmark_integer_math #204 of 689
123,030
6%
Max: 1,926,069
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
1,926,069
#2 AMD EPYC 9845
1,687,531
#3 AMD EPYC 9755
1,549,946
#4 AMD EPYC 9655P
1,225,251
#5 AMD EPYC 9745
1,224,315

passmark_multithreadSource

PassMark multi-thread tests Intel Core Ultra 5 250KF Plus across integer math, floating point, compression, and encryption using all cores. This provides an overall multi-threaded CPU performance score. The combined result reflects general-purpose parallel computing capability.

passmark_multithread #126 of 689
50,146
29%
Max: 171,200
Compare with other CPUs

Top 5 Performers

#2 AMD EPYC 9755
166,328
#3 AMD EPYC 9965
160,542
#4 AMD EPYC 9655P
160,490
#5 AMD EPYC 9655
156,110

passmark_physicsSource

Physics tests how Intel Core Ultra 5 250KF Plus handles physics simulations used in games and engineering software. This measures performance in calculating object interactions and movements. Games with complex physics benefit from higher scores. Engineering applications like structural analysis and fluid dynamics also rely on physics computation.

passmark_physics #130 of 689
3,183
11%
Max: 27,806
Compare with other CPUs

passmark_random_string_sortingSource

Random string sorting measures how fast Intel Core Ultra 5 250KF Plus can organize text data. This is important for database operations, search indexing, and data processing applications. Applications that process large amounts of text benefit from higher scores. Database servers and search engines rely heavily on efficient string manipulation.

passmark_random_string_sorting #146 of 689
67,209
11%
Max: 633,030
Compare with other CPUs

Top 5 Performers

#1 AMD EPYC 9965
633,030
#2 AMD EPYC 9755
571,185
#3 AMD EPYC 9845
538,060
#4 AMD EPYC 9745
468,975
#5 AMD EPYC 9655P
451,824

passmark_single_threadSource

PassMark single-thread measures per-core performance of Intel Core Ultra 5 250KF Plus across various computational tasks. This score is critical for gaming and single-threaded applications.

passmark_single_thread #20 of 689
4,698
92%
Max: 5,087

passmark_singlethreadSource

PassMark single-thread measures per-core performance of Intel Core Ultra 5 250KF Plus across various computational tasks. This score is critical for gaming and single-threaded applications. Higher scores mean better system responsiveness in everyday use.

passmark_singlethread #20 of 689
4,698
92%
Max: 5,087

The AMD Equivalent of Core Ultra 5 250KF Plus

Looking for a similar processor from AMD? The AMD Ryzen 5 3501U offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 3501U

AMD • 4 Cores

View Specs Compare

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