AMD Ryzen 9 9900X3D vs Apple M3 Ultra
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We compared two CPUs: the AMD Ryzen 9 9900X3D vs Apple M3 Ultra. The AMD Ryzen 9 9900X3D features 12 cores and 24 threads with a maximum clock speed of 5.5 GHz, while the Apple M3 Ultra has 32 cores and 32 threads with a maximum clock speed of N/A. Let's see which CPU performs better in terms of benchmarks and specifications.
Key Advantages
Top Reasons to Choose the AMD Ryzen 9 9900X3D
- Unlocked multiplier for overclocking
- Lower power consumption (120W vs 140 W)
Top Reasons to Choose the Apple M3 Ultra
- 814% higher memory bandwidth (819 GB/s vs 89.6 GB/s)
- Advanced 3nm manufacturing process (vs 4nm)
- 167% more cores (32 cores vs 12 cores)
Overall Score
| Single-Core Score |
94
|
90
|
| Multi-Core Score |
86
|
99
|
| Total Score |
90
|
95
|
Geekbench 6 Score
Single-Core
Apple M3 Ultra +1%
AMD Ryzen 9 9900X3D
3,215
Apple M3 Ultra
3,233
Multi-Core
Apple M3 Ultra +33%
AMD Ryzen 9 9900X3D
21,242
Apple M3 Ultra
28,195
| Single-Core | 3,215 | 3,233 |
| Multi-Core | 21,242 | 28,195 |
Specification
AMD Ryzen 9 9900X3D
Apple M3 Ultra
General Info
| Manufacturer | AMD | Apple |
| Launch Date | March 2025 | March 5, 2025 |
| Generation | Ryzen 9000 Series | Apple M3 family |
| Codename | Granite Ridge | Apple M3 |
| Type | Desktop Processor | Desktop |
| Class | High-end | High-end |
| Unlocked Multiplier | Yes | No |
| Architecture | Zen 5 | - |
| Lithography | 4nm | 3 nm |
CPU
| Total Cores | 12 | 32 |
| Total Threads | 24 | 32 |
| Performance Cores | - | 24 |
| Performance Threads | - | 24 |
| Efficient Cores | - | 8 |
| Efficient Threads | - | 8 |
| P-Core Base Frequency | 4.4 GHz | 4.05 GHz |
| P-Core Max Turbo Frequency | 5.5 GHz | - |
| E-Core Base Frequency | - | 2.75 GHz |
| L1 Cache | 960 KB | 192KB (Per core) |
| L2 Cache | 12 MB | 64 MB (shared) |
| L3 Cache | 128 MB (with 2nd gen AMD 3D V-Cache) | - |
Memory
| Memory Type | DDR5 | LPDDR5-6400 |
| Max Memory Size | 192 GB | 512 GB unified memory |
| Max Bandwidth | 89.6 GB/s | 819 GB/s |
| Memory Channels | 2 | 8 |
| ECC Support | Yes | No |
GPU
| Integrated GPU | AMD Radeon Graphics (Raphael) | Apple M3 Ultra GPU (80-core) |
| GPU Base Frequency | 400 MHz | - |
| GPU Max Frequency | 2200 MHz | - |
| Max Resolution HDMI | 4K @ 60Hz | 8K @ 60Hz & 4K @ 240Hz |
| Max Resolution DP | 8K @ 60Hz | 8K @ 60 Hz & 4K @ 240Hz |
| 4K Support | true | true |
Power & I/O
| Socket | AM5 (LGA 1718) | Apple M-Socket |
| PCIe Version | PCIe 5.0 | - |
| PCIe Lanes | 24 | - |
| Base TDP (PL1) | 120W | 140 W |
| Max Temperature | 95°C | 100 °C |
| Instruction Set | x86-64 | ARMv8 (64-bit) |