Intel Core Ultra 7 251HX vs Intel Core Ultra 7 270K Plus

[ VERDICT ] Winner: Intel Core Ultra 7 270K Plus (98/100)

Intel Core Ultra 7 270K Plus leads overall with a score of 98/100 compared to Intel Core Ultra 7 251HX (75/100), offering superior measured performance and technical specifications.

Intel Core Ultra 7 251HX
Intel

Intel Core Ultra 7 251HX

75/100
View Full Specs →
[ WINNER ]
Intel Core Ultra 7 270K Plus
Intel

Intel Core Ultra 7 270K Plus

98/100
View Full Specs →

Benchmark Performance Comparison

Normalized Lab Scores
Benchmark measurements and scores across compared devices
Benchmark Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Efficiency 79.0 Good WINNER 76.0 Good
Performance 83.0 Very Good 99.0 Excellent WINNER

Detailed Technical Specifications

CPU

CPU specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Base Frequency (E) 2.5 GHz 3.2 GHz
Base Frequency (P) 2.9 GHz 3.7 GHz
Bus Frequency 100 MHz 100 MHz
E-Cores 12 16
E-Threads 12 16
L1 Cache 192K (per core) 192K (per core)
L2 Cache 2MB (per core) 3MB (per core)
L3 Cache 30MB (shared) 36MB (shared)
Multiplier 29x 37x
P-Cores 6 8
P-Threads 6 8
Total Cores 18 24
Total Threads 18 24
Turbo Boost Frequency (E) 4.5 GHz 4.7 GHz
Turbo Boost Frequency (P) 5.1 GHz 5.4 GHz
Unlocked Multiplier Yes Yes

General

General specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Codename Arrow Lake Arrow Lake
Instruction Set x86-64 x86-64
Integrated GPU Arc Graphics (4-Cores) Arc iGPU (4-Cores)
Model number 251HX 270K+
Released April 1, 2026 March 12, 2026
Type Laptop Desktop
Vendor Intel Intel
AMD Equivalent — -AMD Ryzen 9 9950X

Memory Support

Memory Support specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
ECC Support No Yes
Max. Memory Bandwidth 102.4 GB/s 115.2 GB/s
Max. Memory Size 256 GB 256 GB
Memory Channels 2 2
Memory Types - DDR5-6400 - DDR5-7200

Misc

Misc specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Official Site Intel Core Ultra 7 251HX official page Intel Core Ultra 7 270K Plus official page
PCI Express Lanes 24 24
PCI Express Version 5.0 5.0

Package

Package specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Fabrication Process 3 nm 3 nm
Max. Boost TDP (PL2) 160 W 250 W
Peak Temperature 105°C 105°C
Socket FCBGA-2114 FCLGA-1851
TDP (PL1) 45-55 W (configurable) 125 W
Transistors — 17.8 billions

PassMark

PassMark specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Data compression 512.7 MBytes/sec 803 MBytes/sec
Data encryption 39.2 GBytes/sec 59 GBytes/sec
Extended instructions 39.9B Matrices/sec 63.4B Matrices/sec
Find prime numbers 440M Primes/sec 612M Primes/sec
Floating point math 152.1 GOps/sec 229.2 GOps/sec
Integer math 122 GOps/sec 175.8 GOps/sec
Physics 2500 Frames/sec 4038 Frames/sec
Random string sorting 61.6M Strings/sec 96.8M Strings/sec

Performance Per Watt

Performance Per Watt specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Cinebench 2024 / Watt 32 PPW 19.9 PPW
Geekbench 6 Multi / Watt 277.8 PPW 219.2 PPW
Passmark CPU Mark / Watt 849.6 PPW 547.7 PPW
Blender / Watt — 4.92 PPW

iGPU

iGPU specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Execution Units 64 64
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1800 MHz 2000 MHz
Integrated Graphics Arc Graphics (4-Cores) Intel Arc iGPU (4-Cores)
ROPs 16 16
Shading Units 512 512
TGP 14 W 14 W
TMUs 32 32

Cinebench

Cinebench specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Cinebench 2026 (Multi) — 9722
Cinebench 2026 (Single) — 595

GeekBench v6

GeekBench v6 specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Background blur — 116 images/sec
Clang compilation — 297.3 Klines/sec
File compression — 2000 MB/sec
HTML 5 Browser — 635.2 pages/sec
PDF Renderer — 716 Mpixels/sec
Photo processing — 210.5 images/sec
Ray tracing — 59 Mpixels/sec
Text processing — 447.5 pages/sec

Recent User Tests

Recent User Tests specifications comparison
Specification Intel Core Ultra 7 251HX Intel Core Ultra 7 270K Plus
Date — Benchmark
📘 2026-04-07(IdiotStick) — Cinebench 2026
📘 2026-04-11(Daniel Comeau) — Cinebench 2026
📘 2026-06-13(sparehobos) — Cinebench 2024
📘 2026-06-25(Adnan) — Cinebench 2024
📘 2026-08-12(coolguy) — Cinebench 2026

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