Intel Core Ultra 9 285K vs AMD Ryzen 9 9900X3D
vs
We compared two CPUs: the Intel Core Ultra 9 285K vs AMD Ryzen 9 9900X3D. The Intel Core Ultra 9 285K features 24 cores and 24 threads with a maximum clock speed of 5.7 GHz, while the AMD Ryzen 9 9900X3D has 12 cores and 24 threads with a maximum clock speed of 5.5 GHz. Let's see which CPU performs better in terms of benchmarks and specifications.
Why Intel Core Ultra 9 285K is better than AMD Ryzen 9 9900X3D
- Geekbench 6 shows 7% faster single-core and 10% faster multi-core performance
- More advanced 3nm process vs 4nm
- 4% faster CPU boost clock (5.7 GHz vs 5.5 GHz)
- 100% more cores (24 cores vs 12 cores)
- 14% higher memory bandwidth (102.4 GB/s vs 89.6 GB/s)
Why AMD Ryzen 9 9900X3D is better than Intel Core Ultra 9 285K
- 3.6× larger L3 cache (128 MB vs 36 MB)
- 10% higher iGPU frequency (2200 MHz vs 2000 MHz)
- Released about 4 months later
Performance Scores
Single-Core Score
Intel Core Ultra 9 285K
100
AMD Ryzen 9 9900X3D
94
Multi-Core Score
Intel Core Ultra 9 285K
100
AMD Ryzen 9 9900X3D
86
Total Score
Intel Core Ultra 9 285K
100
AMD Ryzen 9 9900X3D
90
Geekbench 6
Single-Core
Intel Core Ultra 9 285K +7%
Intel Core Ultra 9 285K
3,440
AMD Ryzen 9 9900X3D
3,215
Multi-Core
Intel Core Ultra 9 285K +10%
Intel Core Ultra 9 285K
23,472
AMD Ryzen 9 9900X3D
21,242
| Single-Core | 3,440 | 3,215 |
| Multi-Core | 23,472 | 21,242 |
Cinebench R23
Single-Core
Intel Core Ultra 9 285K +6%
Intel Core Ultra 9 285K
2,370
AMD Ryzen 9 9900X3D
2,246
Multi-Core
Intel Core Ultra 9 285K +22%
Intel Core Ultra 9 285K
41,988
AMD Ryzen 9 9900X3D
34,412
| Single-Core | 2,370 | 2,246 |
| Multi-Core | 41,988 | 34,412 |
Intel Core Ultra 9 285K
vs
AMD Ryzen 9 9900X3D
General Info
| CPU Name | Intel Core Ultra 9 285K | AMD Ryzen 9 9900X3D |
| Manufacturer | Intel | AMD |
| Codename | Arrow Lake-S | Granite Ridge |
| Launch Date | Q4 2024 | March 2025 |
| Package | LGA1851 | AM5 (LGA 1718) |
| Generation | 15th Gen Core Ultra | Ryzen 9000 Series |
| Architecture | Lion Cove (P-cores) + Skymont (E-cores) | Zen 5 |
| Lithography | TSMC N3B (3nm) | 4nm |
| Type | Desktop Processor | Desktop Processor |
| Processor Class | High-end | High-end |
| Overclocking Support | Yes | Yes |
CPU
| Total Cores | 24 | 12 |
| Performance Cores | 8 | - |
| Efficient Cores | 16 | - |
| Total Threads | 24 | 24 |
| P-Core Base Clock | 3.7 GHz | 4.4 GHz |
| P-Core Boost Clock | 5.7 GHz | 5.5 GHz |
| E-Core Base Clock | 3.2 GHz | - |
| E-Core Boost Clock | 4.6 GHz | - |
| L1 Cache | 192 KB | 960 KB |
| L2 Cache | 40 MB total (3 MB per P-core, 4 MB per 4 E-cores) | 12 MB |
| L3 Cache | 36 MB | 128 MB (with 2nd gen AMD 3D V-Cache) |
| Instruction Set | x86-64 | x86-64 |
| TDP | 125W (Base), 250W (Max) | 120W |
| Max Temperature | 105°C | 95°C |
Memory
| Memory Type | DDR5-6400 | DDR5 |
| Max Memory Size | 192 GB | 192 GB |
| Max Bandwidth | 102.4 GB/s | 89.6 GB/s |
| Memory Channels | 2 | 2 |
GPU
| Integrated GPU | Intel Graphics (Xe-LPG) | AMD Radeon Graphics (Raphael) |
| GPU Base Frequency | 300 MHz | 400 MHz |
| GPU Max Frequency | 2000 MHz | 2200 MHz |
| Max Resolution HDMI | 8K @ 60Hz (HDMI 2.1) | 4K @ 60Hz |
| Max Resolution DisplayPort | 8K @ 60Hz (DP 2.1) | 8K @ 60Hz |
| 4K Support | Yes | Yes |
Connectivity
| PCIe Version | PCIe 5.0 / 4.0 | PCIe 5.0 |
| PCIe Lanes | 24 | 24 |