Product Compare

Intel Core i9 12900T vs Intel Core i5 8400T

	CPU Intel Core i9 12900T	CPU Intel Core i5 8400T
General Parameters
Release Date	Jan 2022	Apr 2018
Manufacturer	Intel	Intel
Type	Desktop	Desktop
Core Architecture	Alder Lake-S	Coffee Lake
Integrated Graphics	UHD Graphics 770	UHD Graphics 630
Generation	Core i9 (Alder Lake-S)
Instruction Set		x86-64
Processor Number		i5-8400T
Package
Manufacturing Process	10 nm	14 nm
Socket	Intel Socket 1700	LGA-1151
Power Consumption	35 W	35 W
Peak Operating Temperature	72 °C	100 °C
Foundry	Intel
Die Size	215 mm²
Package	FC-LGA16A
CPU Performance
Performance Cores	8	6
Performance Core Threads	16	6
Performance Core Base Frequency	1.4 GHz	1.7 GHz
Performance Core Turbo Frequency	4.9 GHz	3.3 GHz
Efficiency Cores	8
Efficiency Core Threads	8
Efficiency Core Base Frequency	1000 MHz
Efficiency Core Turbo Frequency	3.6 GHz
Total Core Count	16	6
Total Thread Count	24	6
Bus Frequency	100 MHz	100 MHz
Multiplier	14.0	17x
L1 Cache	80 KB per core	64 K per core
L2 Cache	1.25 MB per core	256 K per core
L3 Cache	30 MB shared	9 MB shared
Unlocked Multiplier	Yes	No
SMP	1
Memory Parameters
Memory Types	DDR4-3200, DDR5-4800	DDR4-2666
Max Memory Channels	2	2
Max Memory Bandwidth	76.8 GB/s	41.6 GB/s
ECC Memory Support	No	No
Max Memory Size		128 GB
Graphics Card Parameters
Integrated Graphics	true	true
GPU Base Frequency	300 MHz	350 MHz
GPU Max Dynamic Frequency	1550 MHz	1050 MHz
Execution Units	32	24
Shader Units		192
Texture Units		24
Raster Operation Units		3
Power Consumption		15 W
Max Resolution		4096x2304 - 60 Hz
Miscellaneous
Official Website	Official Link ↗	Official Link ↗
PCIe Version	5	3.0
PCIe Lanes	20	16
Extended Instruction Set		SSE4.1, SSE4.2, AVX-2
Benchmarks
Cinebench R23 Single Core	1865	774
Cinebench R23 Multi Core	22804	3638
Geekbench 6 Single Core	2362	1120
Geekbench 6 Multi Core	12384	3670