Intel Core i9-12900K vs Intel Xeon D-2161I

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-12900K or Intel Core i9-12900K – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i9-12900K features 16 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q4/2021 and belongs to the 12 generation of the Intel Core i9 series.
To use the Intel Core i9-12900K, you'll need a motherboard with a LGA 1700 socket.
The Intel Xeon D-2161I features 12 processor cores and has the capability to manage 24 threads concurrently.
It was released in Q1/2018 and belongs to the 2 generation of the Intel Xeon D series.
To use the Intel Xeon D-2161I, you'll need a motherboard with a BGA 2518 socket.
Intel Core i 12000 Group Intel Xeon D-2100
12 Generation 2
Intel Core i9-12900K Name Intel Xeon D-2161I
Desktop / Server Segment Desktop / Server
Intel Core i9 Family Intel Xeon D
 
 

CPU Cores and Base Frequency

The Intel Core i9-12900K has 16 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the A-Core is 3.2 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
The Intel Xeon D-2161I has 12 CPU cores and can calculate 24 threads in parallel.
The clock frequency of the Intel Xeon D-2161I is 2.2 GHz
and turbo frequency for one core is 3.0 GHz.
2.4 GHz B-Core Frequency None
None None 3.0 GHz
5.2 GHz A-Core Frequency Turbo None
None None 12x
hybrid (big.LITTLE) Core architecture normal
8x Golden Cove Cores A None
16 CPU Cores 12
Yes Overclocking No
None None 2.2 GHz
Yes Hyperthreading Yes
3.9 GHz B-Core Frequency Turbo None
3.2 GHz A-Core Frequency None
8x Gracemont Cores B None
24 Threads 24
 
 

Internal Graphics

The Intel Core i9-12900K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-12900K uses the Intel UHD Graphics 770, which has 256 texture shaders
and 32 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Xeon D-2161I does not have integrated graphics.
1.55 GHz GPU (Turbo) --
10 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
32 Execution units --
Q4/2021 Release date --
Intel UHD Graphics 770 GPU name
256 Shaders --
0.3 GHz GPU frequency --
11 Generation --
-- Max. displays --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode VP9 --
Decode / Encode VP8 --
Decode VC-1 --
Decode / Encode JPEG --
Decode / Encode h264 --
Decode / Encode h265 / HEVC (10 bit) --
Decode / Encode AVC --
Decode AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 512.0 GB distributed across 4 memory channels. It offers a peak memory bandwidth of 68.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
DDR4-3200, DDR5-4800 Memory type DDR4-2133
76.8 GB/s Bandwidth 68.2 GB/s
Yes AES-NI Yes
Yes ECC Yes
pci PCIe pci
128.0 GB Max. Memory 512.0 GB
2 Memory channels 4
 
 

Thermal Management

The processor has a thermal design power (TDP) of 125 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 90 W watts.
241 W TDP (PL2) None
125 W TDP (PL1 / PBP) 90 W
100 °C Tjunction max --
 
 

Technical details

The Intel Core i9-12900K is manufactured using a 10 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 30.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Xeon D-2161I is manufactured using a 14 nm process.
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
10 nm Technology 14 nm
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX2+ ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
BX8071512900K Part Number --
Monolithic Chip design Monolithic
Q4/2021 Release date Q1/2018
589 $ Release price 1029 $
14.0 MB L2-Cache 16.5 MB
Technical data sheet Documents Technical data sheet
30.0 MB L3-Cache 0 bytes
LGA 1700 Socket BGA 2518
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
Alder Lake S Architecture Skylake
 
 

Benchmarks

Geekbench 5, 64bit (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
1990
1990
Intel Xeon D-2161I
12C 24T @ 2.2 GHz
850
850