Intel Core i7 8665U vs Intel Core i9 12900T
CPU · Specs Compare
General Parameters
Release Date
Apr 2019
Jan 2022
Manufacturer
Intel
Intel
Type
Laptop
Desktop
Instruction Set
x86-64
—
Core Architecture
Whiskey Lake
Alder Lake-S
Processor Number
i7-8665U
—
Integrated Graphics
UHD Graphics 620
UHD Graphics 770
Generation
—
Core i9 (Alder Lake-S)
Package
Manufacturing Process
14 nm
10 nm
Socket
BGA-1528
Intel Socket 1700
Power Consumption
15 W
35 W
Peak Operating Temperature
100 °C
72 °C
Foundry
—
Intel
Die Size
—
215 mm²
Package
—
FC-LGA16A
CPU Performance
Performance Cores
4
8
Performance Core Threads
8
16
Performance Core Base Frequency
1.9 GHz
1.4 GHz
Performance Core Turbo Frequency
4.8 GHz
4.9 GHz
Total Core Count
4
16
Total Thread Count
8
24
Multiplier
19x
14.0
L1 Cache
32 K per core
80 KB per core
L2 Cache
256 K per core
1.25 MB per core
L3 Cache
8 MB shared
30 MB shared
Unlocked Multiplier
No
Yes
Efficiency Cores
—
8
Efficiency Core Threads
—
8
Efficiency Core Base Frequency
—
1000 MHz
Efficiency Core Turbo Frequency
—
3.6 GHz
Bus Frequency
—
100 MHz
SMP
—
1
Memory Parameters
Memory Types
DDR4-2400, LPDDR3-2133
DDR4-3200, DDR5-4800
Max Memory Size
64 GB
—
Max Memory Channels
2
2
Max Memory Bandwidth
37.5 GB/s
76.8 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1150 MHz
1550 MHz
Shader Units
192
—
Texture Units
24
—
Raster Operation Units
3
—
Execution Units
24
32
Power Consumption
15 W
—
Max Resolution
4096x2304 - 60 Hz
—
Miscellaneous
PCIe Version
3.0
5
PCIe Lanes
16
20
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
—
Benchmark
Cinebench R23
1,244
1,865
Cinebench R23
3,752
22,804
Geekbench 6
1,484
2,362
Geekbench 5
1,056
—
Geekbench 6
3,939
12,384
Geekbench 5
3,056
—
Blender
54
153
Passmark CPU
2,192
—
Passmark CPU
6,232
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.