Apple M3 Ultra vs Intel Core Ultra 7 255U

Compared 2 processors: Apple M3 Ultra, vs Intel Core Ultra 7 255U. Below are specs, tests, pros and cons for each device

Review

Key Specs Apple M3 Ultra and Intel Core Ultra 7 255U
Single-Thread Perf.
Single-Core Benchmark Score
Multi-Thread Perf.
Multi-Core Benchmark Score
Energy Efficiency
Chip Power Efficiency
Integrated Graphics
iGPU Performance in Games & 3D
NanoReview Score
Overall score by NanoReview

Tests & specs

Specs & test comparison

Benchmarks

CPU performance comparison across tasks
Cinebench R23
Cinebench R23 (Single-Core)
Apple M3 Ultra
n/a
Intel Core Ultra 7 255U
1803
Cinebench R23 (Multi-Core)
Apple M3 Ultra
n/a
Intel Core Ultra 7 255U
11890
Cinebench 2024
Cinebench 2024 (Single-Core)
Apple M3 Ultra
n/a
Intel Core Ultra 7 255U
101
Cinebench 2024 (Single-Core)
Apple M3 Ultra
n/a
Intel Core Ultra 7 255U
588
PassMark
PassMark CPU (Single-Core)
Apple M3 Ultra
n/a
Intel Core Ultra 7 255U
4229
PassMark CPU (Multi-Core)
Apple M3 Ultra
n/a
Intel Core Ultra 7 255U
19791
Integer Mathn/a75.3 GOps/s
Floating-Point Mathn/a54.1 GOps/s
Prime Number Searchn/a69 M primes/s
Random String Sortn/a22.1 M strings/s
Data Encryptionn/a12.5 GB/s
Data Compressionn/a207 MB/s
Physicsn/a1214 frames/s
Extended Instructionsn/a126 M matrices/s
GeekBench v6
Geekbench 6 (Single-Core)
Apple M3 Ultra
3247
Intel Core Ultra 7 255U
2580
Geekbench 6 (Multi-Core)
Apple M3 Ultra
28128
Intel Core Ultra 7 255U
10945
File Compression2690 MB/sn/a
Clang Compilation319.2 KLines/sn/a
HTML5 Browser819.6 pages/sn/a
PDF Rendering701.5 MP/secn/a
Text Processing327.5 pages/sn/a
Background Blur63.2 frames/sn/a
Photo Processing190.9 frames/sn/a
Ray Tracing61.5 MP/secn/a

Performance/Watt

Points per watt of PL1 TDP
Geekbench 6 Multi / W 200.9 PPW 729.7 PPW
PassMark CPU / W n/a 1319.4 PPW
Cinebench 2024 / W n/a 39.2 PPW

General Info

Manufacturer Apple Intel
Announced March, 5, 2025 January, 6, 2025
Type PC use Laptop use
Architecture ARMv8 x86-64
Codename Apple M3 Arrow Lake
Model number n/a 255U
Integrated GPU Apple M3 Ultra GPU (80-core) Arc Graphics (4-Cores)

Processor

Performance cores
Cores 24 2
Threads 24 4
Frequency 4.5 GHz 2.0 GHz
Max Frequency (Turbo) n/a 5.2 GHz
Efficiency cores
Cores810
Threads810
Frequencyn/a1.7 GHz
Max Frequency (Turbo)n/a4.2 GHz
General
Cores count3212
Threads count3214
Bus frequencyn/a100 MHz
Multiplier45x20x
L1 cachen/a112 KB/core
L2 cachen/a2000 KB/core
L3 Cachen/a12 MB total
Unlocked multiplierNoNo

Package

Transistor count 184 billion n/a
Process tech. 3 nm 3 nm
Power (TDP) 140 W 12-15 W
Max TDP (Boost) n/a 57 W
Socket Apple M-Socket FCBGA-2049
Critical temp. 100 °C 110 °C

Memory Support

Memory Type LPDDR5-6400 - LPDDR5-8400
- LPDDR5x-8400
- DDR5-6400
Max Size 512 GB 128 GB
Channels 8 2
ECC support No No
Max memory bandwidth 819.2 GB n/a

Other

PCIe Version n/a 4.0
Max PCIe Lanes n/a 20

Results

After analyzing the data, we consider Apple M3 Ultra the clear winner in this comparison.

Survey

Which CPU would you pick?
1 (50%)
1 (50%)
Total Votes: 2

User comments

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