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Intel Core i9-12900


The Intel Core i9-12900 is a high end CPU for desktops based on the Alder Lake architecture. It was first announced in November 2021 and offers 8 performance cores and 8 efficiency cores. The performance cores (P-cores) support HyperThreading, leading to 24 Threads that can be processed at once. The performance cores can clock with up to 5.1 GHz, the efficiency cores can clock with up to 3.8 GHz. All cores can use 30 MB Smart Cache. The integrated memory controller supports up to 128 GB DDR5 with 4800 MT/s (dual channel).

The Thread Director (in hardware) can support the operating system to decide which thread to use on the performance or efficiency cores for the best performance.

For AI tasks, the CPU also integrates GNA 3.0 and DL Boost (most likely only using AVX2). Quick Sync in version 8 is the same as in the Rocket Lake CPUs and supports MPEG-2, AVC, VC-1 decode, JPEG, VP8 decode, VP9, HEVC and AV1 decode in hardware.

The integrated graphics card is based on the Xe-architecture and called Intel UHD Graphics 770. It clocks between 300 and 1.55 GHz.

The CPU is rated at 65 W base power and 202 Watt maximum Turbo power. It is manufactured in 10nm, called Intel 7, process at Intel.

Series Alder Lake-S
CodenameAlder Lake

Series: Alder Lake-S Alder Lake

Intel Core i9-12900K compare3.2 - 5.2 GHz16 / 24 cores30 MB L3
Intel Core i9-12900 « 2.4 - 5.1 GHz16 / 24 cores20 MB L3
Intel Core i7-12700K compare2.7 - 5 GHz12 / 20 cores25 MB L3
Intel Core i7-12700F compare3.3 - 4.9 GHz12 / 20 cores25 MB L3
Intel Core i7-12700 compare3.3 - 4.9 GHz12 / 20 cores25 MB L3
Intel Core i5-12600K compare2.8 - 4.9 GHz10 / 16 cores20 MB L3
Clock Rate2400 - 5100 MHz
Level 1 Cache1.4 MB
Level 2 Cache14 MB
Level 3 Cache20 MB
Number of Cores / Threads16 / 24
Power Consumption (TDP = Thermal Design Power)65 Watt
Manufacturing Technology10 nm
Die Size215 mm2
SocketLGA 1700
FeaturesIntel UHD Graphics 770, DDR5 4800 MT/s, DDR4 3200 MT/s
GPUIntel UHD Graphics 770 (300 - 1550 MHz)
64 Bit64 Bit support
Starting Price$489 U.S.
Announcement Date01/04/2022


Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU
43.8 pt (61%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
3299 Points (21%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
39 Points (51%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
8949 points (54%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
68729 points (50%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
107565 Points (75%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
14610 Points (18%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
14.4 fps (25%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
78877 Points (70%)
3DMark - 3DMark Fire Strike Standard Physics
35153 Points (63%)
WebXPRT 3 - WebXPRT 3 Score
269 Points (56%)
Power Consumption - Prime95 Power Consumption - external Monitor *
151 Watt (26%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
206 Watt (38%)
Power Consumption - Idle Power Consumption - external Monitor *
59.7 Watt (48%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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