Apple M4 Ultra vs M3 Ultra

100 out of 100
Apple M4 Ultra
VS
95 out of 100
Apple M3 Ultra

We compared two 32-core desktop CPUs: the 4.52 GHz Apple M4 Ultra against the 4.05 GHz M3 Ultra. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Please note that the tests on the Apple M4 Ultra are done on an engineering sample provided by our insiders. The data will be more accurate after the final version of this CPU is available.

Key Differences

What are the key differences between Ultra and Ultra
Advantages of Apple M4 Ultra
  • Around 232.7 GB/s (28%) higher theoretical memory bandwidth
  • 24% faster in a single-core Geekbench v6 test - 4062 vs 3266 points
Advantages of Apple M3 Ultra
  • Supports up to 512 GB LPDDR5-6400 RAM

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
vs

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
M4 Ultra +21%
171
141
Cinebench 2024 (Multi)
M4 Ultra +5%
3139
2994
Cinebench 2026 (Multi) - 11987
Cinebench Scores (#2nd place)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
M4 Ultra +24%
4062
3266
Geekbench 6 (Multi-Core)
M4 Ultra +10%
32871
29755
File compression - 2690 MB/sec
Clang compilation - 319.2 Klines/sec
HTML 5 Browser - 819.6 pages/sec
PDF Renderer - 701.5 Mpixels/sec
Text processing - 327.5 pages/sec
Background blur - 63.2 images/sec
Photo processing - 190.9 images/sec
Ray tracing - 61.5 Mpixels/sec
Sources: GeekBench [1]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
n/a
5064
Passmark CPU (Multi-Core)
n/a
72850
Integer math - 181.6 GOps/sec
Floating point math - 183.5 GOps/sec
Find prime numbers - 1063M Primes/sec
Random string sorting - 123.1M Strings/sec
Data encryption - 49.4 GBytes/sec
Data compression - 1076.9 MBytes/sec
Physics - 8863 Frames/sec
Extended instructions - 55.1B Matrices/sec
Sources: PassMark [3] โ€“ 27 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
n/a
717.7

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt - 21.4 PPW
Geekbench 6 Multi / Watt - 212.5 PPW
Passmark CPU Mark / Watt - 520.4 PPW
Blender / Watt - 5.13 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Apple M4 Ultra
No benchmark results yet
Apple M3 Ultra
DateBenchmarkResult
๐Ÿ“˜ 2025-08-13 (Losito)Cinebench 202493 / 2422
๐Ÿ“˜ 2025-03-17 (Luigi9212)Cinebench 2024148 / 2818
๐Ÿ“˜ 2025-03-16 (Tyler)Cinebench 2024133 / 2753

Specifications

Full technical specification of Apple M4 Ultra and M3 Ultra

General

Vendor Apple Apple
Released May 1, 2025 March 5, 2025
Type Desktop Desktop
Instruction Set ARMv9 ARMv8
Codename Apple M4 Apple M3
Integrated GPU Apple M4 Ultra GPU (80-core) Apple M3 Ultra GPU (80-core)

CPU

Performance Cores
P-Cores 24 24
P-Threads 24 24
Base Frequency (P) 4.52 GHz 4.05 GHz
Efficient Cores
E-Cores 8 8
E-Threads 8 8
Base Frequency (E) 2.89 GHz 2.75 GHz
Total
Total Cores 32 32
Total Threads 32 32
Bus Frequency - 100 MHz
Multiplier 45x 40x
L1 Cache - 192K (per core)
L2 Cache - 64MB (shared)
Unlocked Multiplier No No

Package

Transistors - 184 billions
Fabrication Process 3 nm 3 nm
TDP (PL1) - 140 W
Socket Apple M-Socket Apple M-Socket
Peak Temperature 100ยฐC 100ยฐC
Desktop CPU ranking (#4th place)

iGPU

Integrated Graphics Apple M4 Ultra GPU (80-core) Apple M3 Ultra GPU (80-core)
GPU Base Clock 500 MHz -
GPU Boost Clock 1578 MHz 1380 MHz
Shading Units 10240 10240
TMUs 640 640
ROPs 320 320
Execution Units 1280 1280
TGP 120 W 140 W
iGPU FLOPS
M4 Ultra +14%
32.3 TFLOPS
28.3 TFLOPS

Memory Support

Memory Types - LPDDR5X-8533 - LPDDR5-6400
Max. Memory Size 192 GB 512 GB
Memory Channels 64 64
Max. Memory Bandwidth 1052 GB/s 819.3 GB/s
ECC Support No No

Misc

Cast your vote

Choose between two processors
48 (87.3%)
7 (12.7%)
Total votes: 55

Comments

So which CPU will you choose: Apple M3 Ultra or M4 Ultra?
๐ŸŒ Register your profile and become part of NanoReview community!