Intel Core Ultra 7 255U 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 255U (55/100), offering superior measured performance and technical specifications.

Intel Core Ultra 7 255U
Intel

Intel Core Ultra 7 255U

55/100
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 255U Intel Core Ultra 7 270K Plus
Efficiency 78.0 Good WINNER 76.0 Good
Performance 69.0 Average 99.0 Excellent WINNER

Detailed Technical Specifications

CPU

CPU specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Base Frequency (E) 1.7 GHz 3.2 GHz
Base Frequency (P) 2.0 GHz 3.7 GHz
Bus Frequency 100 MHz 100 MHz
E-Cores 10 16
E-Threads 10 16
L1 Cache 112K (per core) 192K (per core)
L2 Cache 2MB (per core) 3MB (per core)
L3 Cache 12MB (shared) 36MB (shared)
Multiplier 20x 37x
P-Cores 2 8
P-Threads 4 8
Total Cores 12 24
Total Threads 14 24
Turbo Boost Frequency (E) 4.2 GHz 4.7 GHz
Turbo Boost Frequency (P) 5.2 GHz 5.4 GHz
Unlocked Multiplier No Yes

GeekBench v6

GeekBench v6 specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Background blur 46.6 images/sec 116 images/sec
Clang compilation 75.6 Klines/sec 297.3 Klines/sec
File compression 999.4 MB/sec 2000 MB/sec
HTML 5 Browser 267.7 pages/sec 635.2 pages/sec
PDF Renderer 334.8 Mpixels/sec 716 Mpixels/sec
Photo processing 80.8 images/sec 210.5 images/sec
Ray tracing 12 Mpixels/sec 59 Mpixels/sec
Text processing 240.5 pages/sec 447.5 pages/sec

General

General specifications comparison
Specification Intel Core Ultra 7 255U 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 255U 270K+
Released January 6, 2025 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 255U Intel Core Ultra 7 270K Plus
ECC Support No Yes
Max. Memory Size 128 GB 256 GB
Memory Channels 2 2
Memory Types - LPDDR5-8400- LPDDR5x-8400- DDR5-6400 - DDR5-7200
Max. Memory Bandwidth — 115.2 GB/s

Misc

Misc specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Official Site Intel Core Ultra 7 255U official page Intel Core Ultra 7 270K Plus official page
PCI Express Lanes 20 24
PCI Express Version 4.0 5.0

Package

Package specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Fabrication Process 3 nm 3 nm
Max. Boost TDP (PL2) 57 W 250 W
Peak Temperature 110°C 105°C
Socket FCBGA-2049 FCLGA-1851
TDP (PL1) 12-15 W (configurable) 125 W
Transistors — 17.8 billions

PassMark

PassMark specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Data compression 196.1 MBytes/sec 803 MBytes/sec
Data encryption 12.4 GBytes/sec 59 GBytes/sec
Extended instructions 10.8B Matrices/sec 63.4B Matrices/sec
Find prime numbers 63M Primes/sec 612M Primes/sec
Floating point math 45.7 GOps/sec 229.2 GOps/sec
Integer math 65.3 GOps/sec 175.8 GOps/sec
Physics 1137 Frames/sec 4038 Frames/sec
Random string sorting 21.3M Strings/sec 96.8M Strings/sec

Performance Per Watt

Performance Per Watt specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Cinebench 2024 / Watt 34.3 PPW 19.9 PPW
Geekbench 6 Multi / Watt 670.5 PPW 219.2 PPW
Passmark CPU Mark / Watt 1191.6 PPW 547.7 PPW
Blender / Watt — 4.92 PPW

iGPU

iGPU specifications comparison
Specification Intel Core Ultra 7 255U Intel Core Ultra 7 270K Plus
Execution Units 64 64
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 2100 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 255U Intel Core Ultra 7 270K Plus
Cinebench 2026 (Multi) — 9722
Cinebench 2026 (Single) — 595

Recent User Tests

Recent User Tests specifications comparison
Specification Intel Core Ultra 7 255U 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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