intel core i9 10900x vs intel core i9 9900k
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We compared two CPUs Intel Core i9 10900X (Desktop) 10-cores against Intel Core i9 9900K (Desktop) 8-cores. In this comparison page, we check which of these two processor has better performance in benchmark results, Games, architecture, price and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
Measure performance when all cores are involved
Key Differences
Advantages of Intel Core i9 10900X
- Newer released 1 years later
- Has 2 more physical cores
- Around 52.4 GB/s (56%) higher theoretical memory bandwidth
- Has 3 MB larger L3 cache size
- Supports up to 256 GB DDR4-2933 RAM
Advantages of Intel Core i9 9900K
- Consumes up to 42% less energy than the Intel Core i9 10900X – 95 vs 165 Watt
- 6% higher Turbo Boost frequency (5 GHz vs 4.7 GHz)
Benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Specifications
General
| Intel Core i9 10900X | Intel Core i9 9900K | |
| Vendor | Intel | Intel |
| Released | October 19 2019 | October 8 2018 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Cascade Lake-X | Coffee Lake-R |
| Socket | FCLGA2066 | FCLGA1151 |
| Integrated GPU | Intel UHD Graphics 630 |
Performance
| Intel Core i9 10900X | Intel Core i9 9900K | |
| Cores | 10 | 8 |
| Threads | 20 | 16 |
| Base Frequency | 3.7 GHz | 3.6 GHz |
| Turbo Boost Frequency | 4.7 GHz | 5 GHz |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 1 MB (per core) | 256K (per core) |
| L3 Cache | 19.25 MB (shared) | 16 MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Power
| Intel Core i9 10900X | Intel Core i9 9900K | |
| Fabrication process | 14 nm | 14 nm |
| Power consumption (TDP) | 165 W | 95 W |
| Max. temperature | 94°C | 100°C |
Memory support
| Intel Core i9 10900X | Intel Core i9 9900K | |
| Memory types | DDR4-2933 | DDR4 |
| Memory Size | 256 GB | 128 GB |
| Max. Memory Channels | 4 | 2 |
| Max. Memory Bandwidth | 94 GB/s | 41.6 GB/s |
| ECC Support | No | No |
iGPU
| Intel Core i9 10900X | Intel Core i9 9900K | |
| Integrated Graphics | Intel UHD Graphics 630 | |
| GPU Base Clock | MHz | 350 MHz |
| GPU Boost Clock | MHz | 1.2 MHz |
| Shading Units | 192 | |
| TMUs | 24 | |
| ROPs | 3 | |
| TGP | W | 15 W |
iGPU FLOPS
Misc
| Intel Core i9 10900X | Intel Core i9 9900K | |
| Official site | Intel Core i9 10900X official page | Intel Core i9 9900K official page |
| PCI Express Version | 3 | 3 |
| PCI Express Lanes | 48 | 16 |