Intel Core i9-12900K vs Intel Xeon W-11955M

Last updated: 2023-11-18

CPU comparison with benchmarks


Intel Core i9-12900K		Intel Xeon W-11955M
CPU comparison Intel Core i9-12900K or Intel Xeon W-11955M - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results. The Intel Core i9-12900K has 16 cores with 24 threads and clocks with a maximum frequency of 5.20 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Core i9-12900K was released in Q4/2021. The Intel Xeon W-11955M has 8 cores with 16 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Xeon W-11955M was released in Q2/2021.

Intel Core i9 (78)	Family	Intel Xeon W (83)
Intel Core i 12000 (34)	CPU group	Intel Xeon W-11000M (8)
12	Generation	11
Alder Lake S	Architecture	Tiger Lake H
Desktop / Server	Segment	Mobile
Intel Core i9-11900K	Predecessor	--
Intel Core i9-13900K	Successor	--

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 Intel Core i9-12900K is 3.20 GHz (5.20 GHz) while the Intel Xeon W-11955M has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Xeon W-11955M is at 2.60 GHz (5.00 GHz).
Intel Core i9-12900K	Characteristic	Intel Xeon W-11955M
16	Cores	8
24	Threads	16
hybrid (big.LITTLE)	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	No
3.20 GHz (5.20 GHz) 8x Golden Cove	A-Core	2.60 GHz (5.00 GHz)
2.40 GHz (3.90 GHz) 8x Gracemont	B-Core	--
Artificial Intelligence and Machine Learning Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
Intel Core i9-12900K	Characteristic	Intel Xeon W-11955M
--	AI hardware	--
--	AI specifications	--

Internal Graphics The Intel Core i9-12900K or Intel Xeon W-11955M has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
Intel UHD Graphics 770	GPU	Intel UHD Graphics 11th Gen (32 EU)
0.30 GHz	GPU frequency	0.35 GHz
1.55 GHz	GPU (Turbo)	1.45 GHz
11	GPU Generation	11
10 nm	Technology	10 nm
3	Max. displays	3
32	Compute units	32
256	Shader	256
No	Hardware Raytracing	No
No	Frame Generation	No
64 GB	Max. GPU Memory	64 GB
12	DirectX Version	12

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.
Intel UHD Graphics 770	GPU	Intel UHD Graphics 11th Gen (32 EU)
Decode / Encode	Codec h265 / HEVC (8 bit)	Decode / Encode
Decode / Encode	Codec h265 / HEVC (10 bit)	Decode / Encode
Decode / Encode	Codec h264	Decode / Encode
Decode / Encode	Codec VP9	Decode / Encode
Decode / Encode	Codec VP8	Decode / Encode
Decode	Codec AV1	Decode
Decode / Encode	Codec AVC	Decode / Encode
Decode	Codec VC-1	Decode
Decode / Encode	Codec JPEG	Decode / Encode

Memory & PCIe The Intel Core i9-12900K can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 76.8 GB/s. The Intel Xeon W-11955M supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s.
Intel Core i9-12900K	Characteristic	Intel Xeon W-11955M
DDR5-4800, DDR4-3200	Memory	DDR4-3200
128 GB	Max. Memory	128 GB
2 (Dual Channel)	Memory channels	2 (Dual Channel)
76.8 GB/s	Max. Bandwidth	51.2 GB/s
Yes	ECC	Yes
14.00 MB	L2 Cache	--
30.00 MB	L3 Cache	24.00 MB
5.0	PCIe version	4.0
20	PCIe lanes	20
78.8 GB/s	PCIe Bandwidth	39.4 GB/s
Thermal Management The thermal design power (TDP for short) of the Intel Core i9-12900K is 125 W, while the Intel Xeon W-11955M has a TDP of 45 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Intel Core i9-12900K	Characteristic	Intel Xeon W-11955M
125 W	TDP (PL1 / PBP)	45 W
241 W	TDP (PL2)	--
--	TDP up	--
--	TDP down	35 W
100 °C	Tjunction max.	100 °C
Technical details The Intel Core i9-12900K is manufactured in 10 nm and has 44.00 MB cache. The Intel Xeon W-11955M is manufactured in 10 nm and has a 24.00 MB cache.
Intel Core i9-12900K	Characteristic	Intel Xeon W-11955M
10 nm	Technology	10 nm
Monolithic	Chip design	Monolithic
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
LGA 1700	Socket	BGA 1787
VT-x, VT-x EPT, VT-d	Virtualization	VT-x, VT-x EPT, VT-d
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems
Q4/2021	Release date	Q2/2021
589 $	Release price	623 $

show more data		show more data

Intel Core i9-12900K 16C 24T @ 3.20 GHz (5.20 GHz) buy now on Amazon and save! Intel Xeon W-11955M 8C 16T @ 2.60 GHz (5.00 GHz) buy now on Amazon and save!

Rate these processors

Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks

Intel Core i9-12900K (100%)

Intel Xeon W-11955M (83%)

⌀ Multi core performance in 5 CPU benchmarks

Intel Core i9-12900K (100%)

Intel Xeon W-11955M (55%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	1997 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	1574 (79%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	27472 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	12836 (47%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	1990 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	1758 (88%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	17595 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	10225 (58%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	2560 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	2164 (85%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	16244 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	9986 (61%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	779 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	610 (78%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	10511 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	5547 (53%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.


	Intel Core i9-12900K Intel UHD Graphics 770 @ 1.55 GHz	794 (100%)
	Intel Xeon W-11955M Intel UHD Graphics 11th Gen (32 EU) @ 1.45 GHz	742 (93%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	40902 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	23067 (56%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	126 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	1582 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	364 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	817 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Core i9-12900K 16C 24T @ 3.20 GHz	11365 (100%)
	Intel Xeon W-11955M 8C 16T @ 2.60 GHz	0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	Intel Core i9-12900K 16C 24T @ 5.20 GHz	294 (100%)
	Intel Xeon W-11955M 8C 16T @ 5.00 GHz	0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	Intel Core i9-12900K 16C 24T @ 5.00 GHz	4111 (100%)
	Intel Xeon W-11955M 8C 16T @ 3.20 GHz	0 (0%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.


	Intel Core i9-12900K 27,472 CB R23 MC @ 240 W	114 (100%)
	Intel Xeon W-11955M 2.60 GHz	0 (0%)

Devices using this processor
Intel Core i9-12900K	Intel Xeon W-11955M
Unknown	Unknown

News and articles for the Intel Core i9-12900K and the Intel Xeon W-11955M

First Geekbench 5 benchmark of the Intel Core i7-13700K

Posted by Stefan on 2022-07-26

Last week we already reported on the new Intel Core i7-13700K processor from Intel, which is expected in autumn 2022. With 8+8 CPU cores (24 threads), the Intel Core i7-13700K should have the same configuration as last year's Intel Core i9-12900K. With this, Intel wants to finally clear AMD's lead in multi-core performance, which has existed for several years.

Intel Core i9-13900 benchmark of engineering sample

Posted by Stefan on 2022-06-15

Intels 13th generation of the Intel Core i series (Raptor Lake) is about to be released and a lot of information is already known from the official side. This information includes e.g. the number of CPU cores, the expected increase in performance and the manufacturing technology of the new CPUs.

We compare the technical data of the Intel Core i9-13900 with its predecessor and look at benchmarks that have already been published.

Popular comparisons containing this CPUs


1.		Intel Core i9-12900K vs AMD Ryzen 9 5950X
2.		Apple M2 vs Intel Core i9-12900K
3.		Intel Core i9-12900K vs Intel Core i7-12700K
4.		Intel Core i9-12900KF vs Intel Core i9-12900K
5.		Intel Core i9-12900K vs AMD Ryzen 9 5900X
6.		Intel Core i7-13700K vs Intel Core i9-12900K
7.		Intel Core i9-13900K vs Intel Core i9-12900K
8.		Intel Core i9-12900K vs Intel Core i9-11900K
9.		Intel Core i9-12900K vs Intel Core i9-9900K
10.		Apple M1 Ultra (64-GPU) vs Intel Core i9-12900K