Intel Core i9 12900KF vs Intel Core Ultra 5 245T
We compared two desktop CPUs: Intel Core i9 12900KF with 16 cores 3.2GHz and Intel Core Ultra 5 245T with 14 cores 2.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 12900KF 's Advantages
Higher base frequency (3.2GHz vs 2.2GHz)
Larger L3 cache size (30MB vs 24MB)
Intel Core Ultra 5 245T 's Advantages
Released 3 years and 3 months late
Higher specification of memory (6400 vs 4800)
Newer PCIe version (5 vs 5.0)
More modern manufacturing process (3nm vs 10nm)
Lower TDP (65W vs 125W)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i9 12900KF
2686
Intel Core Ultra 5 245T
+3%
2770
Geekbench 6 Multi Core
Intel Core i9 12900KF
+11%
16130
Intel Core Ultra 5 245T
14476
General Parameters
Oct 2021
Release Date
Jan 2025
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
-
Alder Lake
Core Architecture
Arrow Lake-S
i9-12900KF
Processor Number
-
LGA-1700
Socket
Intel Socket 1851
No
Integrated Graphics
Arc Xe-LPG Graphics 64EU
-
Generation
Ultra 5 (Arrow Lake)
Package
-
Transistor Count
17.8 billions
10 nm
Manufacturing Process
3 nm
125 W
Power Consumption
65 W
241 W
Max Turbo Power Consumption
-
100°C
Peak Operating Temperature
105°C
-
Foundry
TSMC
-
Die Size
243 mm²
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
12
3.2 GHz
Performance Core Base Frequency
2.2 GHz
5.1 GHz
Performance Core Turbo Frequency
5.1 GHz
8
Efficiency Cores
8
8
Efficiency Core Threads
8
2.4 GHz
Efficiency Core Base Frequency
1700 MHz
3.9 GHz
Efficiency Core Turbo Frequency
4.5 GHz
16
Total Core Count
14
24
Total Thread Count
14
100 MHz
Bus Frequency
100 MHz
32x
Multiplier
22.0
64 K per core
L1 Cache
192 KB per core
14 MB shared
L2 Cache
3 MB per core
30 MB shared
L3 Cache
24 MB shared
Yes
Unlocked Multiplier
No
-
SMP
1
Memory Parameters
DDR5-4800, DDR4-3200
Memory Types
DDR5-6400
128 GB
Max Memory Size
-
2
Max Memory Channels
2
76.8 GB/s
Max Memory Bandwidth
-
Yes
ECC Memory Support
Yes
