Intel Core i9-12900K vs Intel Core i7-875K

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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 Core i7-875K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2010 and belongs to the 1 generation of the Intel Core i7 series.
To use the Intel Core i7-875K, you'll need a motherboard with a LGA 1156 socket.
Intel Core i 12000 Group Intel Core i7 800
12 Generation 1
Desktop / Server Segment Desktop / Server
Intel Core i9-12900K Name Intel Core i7-875K
Intel Core i9 Family Intel Core i7
 
 

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 Core i7-875K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-875K is 2.93 GHz
and turbo frequency for one core is 3.6 GHz.
24 Threads 8
2.4 GHz B-Core Frequency None
None None 4x
16 CPU Cores 4
hybrid (big.LITTLE) Core architecture normal
8x Golden Cove Cores A None
Yes Hyperthreading Yes
3.2 GHz A-Core Frequency None
5.2 GHz A-Core Frequency Turbo None
Yes Overclocking Yes
8x Gracemont Cores B None
3.9 GHz B-Core Frequency Turbo None
None None 3.6 GHz
None None 2.93 GHz
 
 

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 Core i7-875K does not have integrated graphics.
256 Shaders --
Q4/2021 Release date --
10 nm Technology --
12 Direct X --
64.0 GB Max. GPU Memory 0 bytes
-- Max. displays --
32 Execution units --
0.3 GHz GPU frequency --
11 Generation --
1.55 GHz GPU (Turbo) --
Intel UHD Graphics 770 GPU name
 
 

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 VP8 --
Decode VC-1 --
Decode / Encode JPEG --
Decode AV1 --
Decode / Encode h265 / HEVC (8 bit) --
Decode / Encode AVC --
Decode / Encode h264 --
Decode / Encode VP9 --
Decode / Encode h265 / HEVC (10 bit) --
 
 

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 16.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.0 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI No
DDR4-3200, DDR5-4800 Memory type DDR3-1066
Yes ECC No
128.0 GB Max. Memory 16.0 GB
2 Memory channels 2
76.8 GB/s Bandwidth 21.0 GB/s
 
 

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 95 W watts.
241 W TDP (PL2) None
125 W TDP (PL1 / PBP) 95 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 Core i7-875K is manufactured using a 45 nm process.
In total, this processor boasts a generous 8.0 MB cache.
Q4/2021 Release date Q2/2010
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2, AVX2+ ISA extensions SSE4.1, SSE4.2
10 nm Technology 45 nm
Monolithic Chip design Monolithic
589 $ Release price 353 $
Alder Lake S Architecture Lynnfield
30.0 MB L3-Cache 8.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
BX8071512900K Part Number --
LGA 1700 Socket LGA 1156
14.0 MB L2-Cache 1.0 MB
 
 

Benchmarks

Estimated results for PassMark CPU Mark

Intel Core i9-12900K
16C 24T @ 3.2 GHz
40902
40902
Intel Core i7-875K
4C 8T @ 2.93 GHz
3092
3092

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
17595
17595
Intel Core i7-875K
4C 8T @ 2.93 GHz
2124
2124

Geekbench 6 (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
16244
16244
Intel Core i7-875K
4C 8T @ 2.93 GHz
1425
1425

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
11365
11365
Intel Core i7-875K
4C 8T @ 2.93 GHz
1447
1447

Geekbench 6 (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
2560
2560
Intel Core i7-875K
4C 8T @ 2.93 GHz
472
472

Geekbench 5, 64bit (Single-Core)

Intel Core i9-12900K
16C 24T @ 3.2 GHz
1990
1990
Intel Core i7-875K
4C 8T @ 2.93 GHz
565
565