Apple M3 Ultra vs Apple M5 Pro (18-Core)
[ VERDICT ]
Winner: Apple M5 Pro (18-Core) (97/100)
Apple M5 Pro (18-Core) leads overall with a score of 97/100 compared to Apple M3 Ultra (94/100), offering superior measured performance and technical specifications.
Benchmark Performance Comparison
Normalized Lab Scores| Benchmark | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Efficiency | 84.0 Very Good | 98.0 Excellent WINNER |
| Performance | 89.0 Very Good | 100.0 Excellent WINNER |
Detailed Technical Specifications
CPU
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Base Frequency (E) | 2.75 GHz | 4.38 GHz |
| Base Frequency (P) | 4.05 GHz | 4.61 GHz |
| E-Cores | 8 | 12 |
| E-Threads | 8 | 12 |
| L1 Cache | 192K (per core) | 192K (per core) |
| L2 Cache | 64MB (shared) | — |
| Multiplier | 40x | 46x |
| P-Cores | 24 | 6 |
| P-Threads | 24 | 6 |
| Total Cores | 32 | 18 |
| Total Threads | 32 | 18 |
| Unlocked Multiplier | No | No |
GeekBench v6
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Background blur | 63.2 images/sec | 100.3 images/sec |
| Clang compilation | 319.2 Klines/sec | 262.5 Klines/sec |
| File compression | 2690 MB/sec | 2530 MB/sec |
| HTML 5 Browser | 819.6 pages/sec | 738.1 pages/sec |
| PDF Renderer | 701.5 Mpixels/sec | 744.9 Mpixels/sec |
| Photo processing | 190.9 images/sec | 250.8 images/sec |
| Ray tracing | 61.5 Mpixels/sec | 46.5 Mpixels/sec |
| Text processing | 327.5 pages/sec | 450.7 pages/sec |
General
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Codename | Apple M3 | Apple M5 |
| Instruction Set | ARMv8 | ARMv9 |
| Integrated GPU | Apple M3 Ultra GPU (80-core) | Apple M5 Pro GPU (20-core) |
| Released | March 5, 2025 | March 3, 2026 |
| Type | Desktop | Laptop |
| Vendor | Apple | Apple |
Memory Support
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| ECC Support | No | No |
| Max. Memory Bandwidth | 819.3 GB/s | 307 GB/s |
| Max. Memory Size | 512 GB | 64 GB |
| Memory Channels | 64 | 16 |
| Memory Types | - LPDDR5-6400 | - LPDDR5X-9600 |
Package
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Fabrication Process | 3 nm | 3 nm |
| Peak Temperature | 100°C | 100°C |
| Socket | Apple M-Socket | Apple M-Socket |
| TDP (PL1) | 140 W | — |
| Transistors | 184 billions | 28 billions |
PassMark
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Data compression | 1076.9 MBytes/sec | 697.9 MBytes/sec |
| Data encryption | 49.4 GBytes/sec | 40.8 GBytes/sec |
| Extended instructions | 55.1B Matrices/sec | 33.3B Matrices/sec |
| Find prime numbers | 1063M Primes/sec | 486M Primes/sec |
| Floating point math | 183.5 GOps/sec | 186.8 GOps/sec |
| Integer math | 181.6 GOps/sec | 132.7 GOps/sec |
| Physics | 8863 Frames/sec | 5687 Frames/sec |
| Random string sorting | 123.1M Strings/sec | 85.6M Strings/sec |
Performance Per Watt
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Blender / Watt | 5.13 PPW | — |
| Cinebench 2024 / Watt | 19.7 PPW | — |
| Geekbench 6 Multi / Watt | 200.9 PPW | — |
| Passmark CPU Mark / Watt | 520.4 PPW | — |
Recent User Tests
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Date | Benchmark | — |
| 📘 2025-03-16(Tyler) | Cinebench 2024 | — |
| 📘 2025-03-17(Luigi9212) | Cinebench 2024 | — |
| 📘 2025-08-13(Losito) | Cinebench 2024 | — |
iGPU
| Specification | Apple M3 Ultra | Apple M5 Pro (18-Core) |
|---|---|---|
| Execution Units | 1280 | 320 |
| GPU Boost Clock | 1380 MHz | 1620 MHz |
| Integrated Graphics | Apple M3 Ultra GPU (80-core) | Apple M5 Pro GPU (20-core) |
| ROPs | 320 | 80 |
| Shading Units | 10240 | 2560 |
| TGP | 140 W | 28 W |
| TMUs | 640 | 160 |
Looking for More Comparisons?
Browse all available head-to-head comparisons or select new devices in the comparison hub.