We compared the Intel Core i9-10900K vs Intel Core Ultra 9 285K. The Core i9-10900K comes with 10 cores and 20 threads, running at a boost clock speed of up to 5.3 GHz. On the other hand, the Core Ultra 9 285K features 24 cores (8 Performance + 16 Efficient) and 32 threads, with a maximum boost clock speed of 5.5 GHz. We compare both CPUs in terms of benchmarks and specifications.
Performance Review
Single Core Performance
Intel i9 10900K
50
Intel Core Ultra 9 285K
100
Multi Core Performance
Intel i9 10900K
44
Intel Core Ultra 9 285K
100
Total Score
Intel i9 10900K
47
Intel Core Ultra 9 285K
100
Geekbench
Geekbench measures CPU performance in single-core and multi-core scenarios.Single Core
Intel i9 10900K
1422
Intel Core Ultra 9 285K
+142% better
3440
Multi Core
Intel i9 10900K
11318
Intel Core Ultra 9 285K
+107% better
23472
| Multi Core | 11318 | 23472 |
| Single Core | 1422 | 3440 |
Cinebench R23
Cinebench R23 measures CPU rendering performance in single-core and multi-core scenarios.Single Core
Intel i9 10900K
1415
Intel Core Ultra 9 285K
+67% better
2370
Multi Core
Intel i9 10900K
16879
Intel Core Ultra 9 285K
+149% better
41988
| Multi Core | 16879 | 41988 |
| Single Core | 1415 | 2370 |
Advantages of Intel Core Ultra 9 285K
- More advanced 3nm process vs 14nm
- 142% faster single-core and 107% faster multi-core in Geekbench 6
- Boost clock speed is 16% faster (5.5 GHz vs 5.3 GHz)
- 118% faster memory speed (DDR5-6400 vs DDR4-2933)
- 124% higher memory bandwidth (102.4 GB/s vs 45.8 GB/s)
- PCIe 5.0 delivers up to 4× more bandwidth than PCIe 3.0
- 1.8× bigger L3 cache size (36 MB vs 20 MB)
- 2.4x more cores and 1.6x more threads (24C/32T vs 10C/20T)
Specifications Comparison
Intel Core i9 10900K
vs
Intel Core Ultra 9 285K
Info
| Name | Intel Core i9-10900K | Intel Core Ultra 9 285K |
| Codename | Comet Lake-S | Arrow Lake-S |
| Launch Date | Q2 2020 | Q4 2024 |
| Package | FC-LGA1200 | LGA1851 |
| Generation | 10th Gen | 15th Gen Core Ultra |
| Architecture | Comet Lake | Lion Cove (P-cores) + Skymont (E-cores) |
| Lithography | 14nm | TSMC N3B (3nm) |
| Type | Desktop | Desktop Processor |
| Class | High-end | High-end |
| Overclocking | True | True |
CPU
| Total Cores | 10 | 24 |
| Total Threads | 20 | 24 |
| P Cores | 10 | 8 |
| E Cores | 0 | 16 |
| P Core Threads | 20 | 8 |
| E Core Threads | 0 | 16 |
| Core Architecture | Comet Lake | Lion Cove (P) + Skymont (E) |
| P Core Base Clock | 3.7 GHz | 3.7 GHz |
| P Core Boost Clock | 5.3 GHz | 5.7 GHz |
| E Core Base Clock | – | 3.2 GHz |
| E Core Boost Clock | – | 4.6 GHz |
| Instruction Set | x86-64 | x86-64 |
| L1 Cache | 32 KB per core | 192 KB |
| L2 Cache | 256 KB per core | 40 MB total (3 MB per P-core, 4 MB per 4 E-cores) |
| L3 Cache | 20 MB | 36 MB |
| TDP | 125W | 125W (Base), 250W (Max) |
| Max Temperature | 100°C | 105°C |
Memory
| Max Size | 128 GB | 192 GB |
| Type | DDR4-2933 | DDR5-6400 |
| Max Memory Channels | 2 | 2 |
| Max Memory Bandwidth | 45.8 GB/s | 102.4 GB/s |
GPU
| Integrated GPU | Intel UHD Graphics 630 | Intel Graphics (Xe-LPG) |
| GPU Base Frequency | 350 MHz | 300 MHz |
| Max Frequency | 1.2 GHz | 2000 MHz |
| Max Resolution HDMI | 4096×2160 @ 30Hz | 8K @ 60Hz (HDMI 2.1) |
| Max Resolution DP | 4096×2304 @ 60Hz | 8K @ 60Hz (DP 2.1) |
| 4K Support | True | True |
Connectivity
| PCI Express Version | 3.0 | PCIe 5.0 / 4.0 |
| PCI Express Lanes | 16 | 24 |