Buy on Amazon
$139
In Stock
Availability
Availability
AvailabilityMSRP in USD: $599
Availability
MSRP in USD: $599
Key Differences
In short — Core i9-12900K outperforms the cheaper Core i5-8400T on the selected game parameters. However, the worse performing Core i5-8400T is a better bang for your buck. The better performing Core i9-12900K is 1312 days newer than the cheaper Core i5-8400T.
Advantages of Intel Core i5-8400T
- Up to 50% cheaper than Core i9-12900K - $139.0 vs $279.99
- Up to 31% better value when playing Tom Clancy's Rainbow Six Siege than Core i9-12900K - $0.27 vs $0.39 per FPS
- Consumes up to 72% less energy than Intel Core i9-12900K - 35 vs 125 Watts
Advantages of Intel Core i9-12900K
- Performs up to 38% better in Tom Clancy's Rainbow Six Siege than Core i5-8400T - 717 vs 520 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400T - 24 vs 6 threads
- Works without a dedicated GPU, while Intel Core i5-8400T doesn't have integrated graphics
Tom Clancy's Rainbow Six Siege
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400T
Desktop • Apr 2nd, 2018
FPS
520
72.52440725244072%
Value, $/FPS
$0.27/FPS
100%
Price, $
$139
100%
Value Winner
Intel Core i5-8400T prcsr Tray
Buy for $139 on Amazon
In Stock
Updated 6485 minutes ago
Core i9-12900K
Desktop • Nov 4th, 2021
FPS
717
100%
Value, $/FPS
$0.39/FPS
69.23076923076923%
Price, $
$279.99
49%
FPS Winner
Intel Core i9-12900K Gaming Desktop Processor with Integrated Graphics and 16 (8P+8E) Cores up to 5.2 GHz Unlocked LGA1700 600 Series Chipset 125W
Buy for $279.99 on Amazon
In Stock
Updated 6489 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400T
Desktop • Apr 2nd, 2018
Core i9-12900K
Desktop • Nov 4th, 2021
Geekbench 5 Benchmarks
Core i5-8400T
Desktop • Apr 2nd, 2018
Single-Core
1099
41.94656488549619%
Multi-Core
3884
25.147296859825186%
Intel Core i5-8400T | vs | Intel Core i9-12900K |
|---|---|---|
| Apr 2nd, 2018 | Release Date | Nov 4th, 2021 |
| Core i5 | Collection | Core i9 |
| Coffee Lake | Codename | Alder Lake |
| Intel Socket 1151 | Socket | Intel Socket 1700 |
Desktop | Segment | Desktop |
| 6 | Cores | 16 |
| 6 | Threads | 24 |
| 1.7 GHz | Base Clock Speed | 3.2 GHz |
| 3.3 GHz | Turbo Clock Speed | 5.2 GHz |
35 W | TDP | 125 W |
| 14 nm | Process Size | 10 nm |
| 17.0x | Multiplier | 32.0x |
| None | Integrated Graphics | UHD Graphics 770 |
| No | Overclockable | Yes |
Builds Using Core i5-8400T or Core i9-12900K
Tom Clancy's Rainbow Six Siege, 1920 x 1080, Ultra
717 FPS
$5.02/FPS
GeForce RTX 4090
Core i9-12900K
16 GB, N/A Storage
Buy on Amazon
$3,599.99
In Stock
585 FPS
$3.25/FPS
GeForce RTX 4070 Ti
Core i9-12900K
32 GB, N/A Storage
Buy on Amazon
$1,899.99
In Stock
477 FPS
$6.71/FPS
GeForce RTX 3070 Ti
Core i9-12900K
16 GB, 4 TB SSD
Buy on Amazon
$3,199
In Stock
549 FPS
$5.23/FPS
GeForce RTX 3090
Core i9-12900K
32 GB, N/A Storage
Buy on Amazon
$2,870.49
In Stock
585 FPS
$4.1/FPS
GeForce RTX 4070 Ti
Core i9-12900K
32 GB, N/A Storage
Buy on Amazon
$2,399.99
In Stock
332 FPS
$4.06/FPS
GeForce RTX 3050
Core i9-12900K
64 GB, 2 TB SSD
Buy on Amazon
$1,348
In Stock
410 FPS
$3.78/FPS
GeForce RTX 4060
Core i9-12900K
64 GB, 2 TB SSD
Buy on Amazon
$1,549
In Stock
549 FPS
$7.23/FPS
GeForce RTX 3090
Core i9-12900K
32 GB, 8 TB SSD + 1 TB HDD
Buy on Amazon
$3,969
In Stock
410 FPS
$4.14/FPS
GeForce RTX 4060
Core i9-12900K
64 GB, 4 TB SSD
Buy on Amazon
$1,699
In Stock
458 FPS
$2.51/FPS
GeForce RTX 3070
Core i9-12900K
16 GB, 1 TB SSD
Buy on Amazon
$1,149.99
In Stock
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