Intel Core i9 10940X vs Intel Core i9 12900KF
CPU · Specs Compare
General Parameters
Release Date
Oct 2019
Oct 2021
Manufacturer
Intel
Intel
Type
Desktop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Cascade Lake
Alder Lake
Processor Number
i9-10940X
i9-12900KF
Integrated Graphics
N/A
No
Package
Manufacturing Process
14 nm
10 nm
Socket
LGA-2066
LGA-1700
Power Consumption
165 W
125 W
Peak Operating Temperature
86 °C
100°C
Max Turbo Power Consumption
—
241 W
CPU Performance
Performance Cores
14
8
Performance Core Threads
28
16
Performance Core Base Frequency
3.3 GHz
3.2 GHz
Performance Core Turbo Frequency
4.6 GHz
5.1 GHz
Total Core Count
14
16
Total Thread Count
28
24
Bus Frequency
100 MHz
100 MHz
Multiplier
33x
32x
L1 Cache
64 K per core
64 K per core
L2 Cache
1 MB per core
14 MB shared
L3 Cache
20 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
Efficiency Cores
—
8
Efficiency Core Threads
—
8
Efficiency Core Base Frequency
—
2.4 GHz
Efficiency Core Turbo Frequency
—
3.9 GHz
Memory Parameters
Memory Types
DDR4-2933
DDR5-4800, DDR4-3200
Max Memory Size
256 GB
128 GB
Max Memory Channels
4
2
Max Memory Bandwidth
93.8 GB/s
76.8 GB/s
ECC Memory Support
No
Yes
Miscellaneous
PCIe Version
3.0
5.0
PCIe Lanes
48
20
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
—
Benchmark
Cinebench R23
1,234
2,028
Cinebench R23
21,309
27,422
Geekbench 6
1,471
2,686
Geekbench 5
1,144
1,970
Geekbench 6
11,287
16,130
Geekbench 5
13,573
17,469
Passmark CPU
2,686
4,167
Passmark CPU
27,907
41,190
Blender
—
425
▲ Specs Compare
Data sourced from official specifications and benchmark tests.