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AvailabilityMSRP in USD: $599
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MSRP in USD: $599
Key Differences
In short — Core i9-12900K outperforms Core i3-8121U on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i9-12900K is 1279 days newer than Core i3-8121U.
Advantages of Intel Core i3-8121U
- Consumes up to 88% less energy than Intel Core i9-12900K - 15 vs 125 Watts
Advantages of Intel Core i9-12900K
- Performs up to 3% better in Control than Core i3-8121U - 207 vs 201 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i3-8121U - 24 vs 4 threads
- Works without a dedicated GPU, while Intel Core i3-8121U doesn't have integrated graphics
Control
Resolution
1920 x 1080
Game Graphics
High
Core i9-12900K
Desktop • Nov 4th, 2021
FPS
207
100%
Value, £/FPS
£1.72/FPS
100%
Price, £
£356.44
100%
FPS and Value Winner
Intel® Core™ i9-12900K Desktop Processor 16 (8P+8E) Cores up to 5.2 GHz Unlocked LGA1700 600 Series Chipset 125W
Buy for £356.44 on Amazon
In Stock
Updated 87 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
High
Core i3-8121U
Mobile • May 5th, 2018
Core i9-12900K
Desktop • Nov 4th, 2021
Geekbench 5 Benchmarks
Intel Core i3-8121U | vs | Intel Core i9-12900K |
|---|---|---|
| May 5th, 2018 | Release Date | Nov 4th, 2021 |
| Core i3 | Collection | Core i9 |
| Cannon Lake | Codename | Alder Lake |
| Intel BGA 1440 | Socket | Intel Socket 1700 |
Mobile | Segment | Desktop |
| 2 | Cores | 16 |
| 4 | Threads | 24 |
| 2.2 GHz | Base Clock Speed | 3.2 GHz |
| 3.2 GHz | Turbo Clock Speed | 5.2 GHz |
15 W | TDP | 125 W |
| 10 nm | Process Size | 10 nm |
| 22.0x | Multiplier | 32.0x |
| None | Integrated Graphics | UHD Graphics 770 |
| No | Overclockable | Yes |
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