Intel Core i9 12900T vs AMD Ryzen 9 Pro 9945
CPU · Specs Compare
General Parameters
Release Date
Jan 2022
Jan 2026
Manufacturer
Intel
Amd
Type
Desktop
Desktop
Core Architecture
Alder Lake-S
Zen 5 (Granite Ridge)
Integrated Graphics
UHD Graphics 770
Radeon Graphics
Generation
Core i9 (Alder Lake-S)
—
Instruction Set
—
x86-64
Processor Number
—
9945
Package
Manufacturing Process
10 nm
4 nm
Socket
Intel Socket 1700
AM5
Power Consumption
35 W
65 W
Peak Operating Temperature
72 °C
95 °C
Foundry
Intel
—
Die Size
215 mm²
—
Package
FC-LGA16A
—
CPU Performance
Performance Cores
8
12
Performance Core Threads
16
24
Performance Core Base Frequency
1.4 GHz
3.4 GHz
Performance Core Turbo Frequency
4.9 GHz
5.4 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
12
Total Thread Count
24
24
Bus Frequency
100 MHz
100 MHz
Multiplier
14.0
34
L1 Cache
80 KB per core
80 K per core
L2 Cache
1.25 MB per core
1 MB per core
L3 Cache
30 MB shared
64 MB shared
Unlocked Multiplier
Yes
Yes
SMP
1
—
Memory Parameters
Memory Types
DDR4-3200, DDR5-4800
DDR5-5600
Max Memory Channels
2
—
Max Memory Bandwidth
76.8 GB/s
89.6 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
400 MHz
GPU Max Dynamic Frequency
1550 MHz
2200 MHz
Execution Units
32
2
Shader Units
—
128
Texture Units
—
8
Raster Operation Units
—
4
Power Consumption
—
15
Miscellaneous
PCIe Version
5
5.0
PCIe Lanes
20
28
Benchmark
Cinebench R23
1,865
2,117
Cinebench R23
22,804
19,948
Geekbench 6
2,362
3,284
Geekbench 6
12,384
16,188
Blender
153
—
Cinebench 2024
—
135
Cinebench 2024
—
1,230
▲ Specs Compare
Data sourced from official specifications and benchmark tests.