ProcessorsIntel
Intel Core i9 12900K 16 Core Alder Lake Unlocked CPU/Processor
MPN: BX8071512900K
Key specifications
SocketLGA 1700
Cores16
Threads24
Boost clock5.1 GHz
TDP125 W
Integrated graphicsUnknown
Full Specifications63 fields
Additional Information
Model Number
BX8071512900K
Gtin
5032037234641
Bus Speeds
Fsb Speed
N/A
Qpi Speed
N/A
Upi Links Speed
N/A
Dmi Speed
N/A
Cores & Clocks
Core Count
16 Core (8 Performance, 8 Efficient)
Thread Count
24
Core Ratio
32 x
Clock Speed
3.2 GHz
Turbo Speed
5.1 GHz
Turbo Boost Max Technology 3 0 Speed
5.2 GHz
Thermal Velocity Boost Speed
-
Unlocked Core Multiplier
Yes
Unlocked Full Range Base Clock B Clock
Yes
CPU
Cpu Manufacturer
Intel
Cpu Series
Intel Core i9
Cpu Architecture
Intel Alder Lake-S
Cpu Cores
16
Cpu Threads
24
Performance Cores
8
Efficiency Cores
8
Hyperthreading Multithreading
Yes
Open Multiplier
Yes
Memory Controller
dual channel
Cpu Cooler Included
No
Cpu Packaging
boxed / retail
CPU Cache
L1 Cache
-
L2 Cache
-
L3 Cache
-
Intel Smart Cache
30MB
GPU Model
Gpu Series Name
Intel UHD Graphics 770
Integrated Graphics
Igpu Cores
-
Igpu Base Clock
N/A
Igpu Boost Clock
N/A
Igpu Max Resolution
-
Lanes & Features
Intel Deep Learning Boost Support
No
Scalability
1 Socket/Processor ONLY
Node Controller Support
No
Pcie Version
4.0 / 5.0
Pcie Lanes
20
Memory
Memory Compatibility
DDR5, DDR4
Eec Support
Yes
Memory Support
Max Memory Size
-
Max Memory Speed
DDR4 - 3200 / DDR5 - 4800MHz
Max Memory Channels
2 (Dual Channel)
Ecc Memory
-
Intel Optane Memory
No
Intel Optane Dc Persistent Memory
No
Model & Type
Cpu Type
Intel Core i9
Cpu Model
12900K
Socket
1700
Architecture
Alder Lake 12th Gen
Manufacturing Process
-
Thermals & Package
Tdp
125W
Thermal Specification
-
Heatsink Cooler Included
-
Package Type
Retail
Note
-
Thermal Specifications
Max Tdp
241 W
General
Features Integrated Graphics
Yes
Integrated Graphics Model Type
Intel UHD Graphics 770
Best indexed price
£355.77GBP
Indexed 25 May 2026 — verify at retailer
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