Intel Xeon W-11855M vs Intel Core i9-9900KS

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CPU comparison with benchmarks


Intel Xeon W-11855M CPU1 vs CPU2 Intel Core i9-9900KS
Intel Xeon W-11855M Intel Core i9-9900KS

CPU comparison

In this CPU comparison, we compare the Intel Xeon W-11855M and the Intel Core i9-9900KS and use benchmarks to check which processor is faster.

We compare the Intel Xeon W-11855M 6 core processor released in Q2/2021 with the Intel Core i9-9900KS which has 8 CPU cores and was introduced in Q4/2019.
Intel Xeon W (83) Family Intel Core i9 (78)
Intel Xeon W-11000M (8) CPU group Intel Core i 9000 (34)
11 Generation 9
Tiger Lake H Architecture Coffee Lake S Refresh
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon W-11855M is a 6 core processor with a clock frequency of 3.20 GHz (4.90 GHz). The processor can compute 12 threads at the same time. The Intel Core i9-9900KS clocks with 4.00 GHz (5.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel.

Intel Xeon W-11855M Characteristic Intel Core i9-9900KS
6 Cores 8
12 Threads 16
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? Yes
3.20 GHz Frequency 4.00 GHz
4.90 GHz Turbo Frequency (1 Core) 5.00 GHz
3.80 GHz Turbo Frequency (All Cores) 4.80 GHz

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 Xeon W-11855M Characteristic Intel Core i9-9900KS
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

Intel UHD Graphics 11th Gen (32 EU) GPU Intel UHD Graphics 630
0.35 GHz GPU frequency 0.35 GHz
1.45 GHz GPU (Turbo) 1.20 GHz
11 GPU Generation 9.5
10 nm Technology 14 nm
3 Max. displays 3
32 Compute units 24
256 Shader 192
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 11th Gen (32 EU) GPU Intel UHD Graphics 630
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 No
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 128 GB of memory in a maximum of 2 memory channels is supported by the Intel Xeon W-11855M, while the Intel Core i9-9900KS supports a maximum of 128 GB of memory with a maximum memory bandwidth of 42.7 GB/s enabled.

Intel Xeon W-11855M Characteristic Intel Core i9-9900KS
DDR4-3200 Memory DDR4-2666
128 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 42.7 GB/s
Yes ECC No
-- L2 Cache --
18.00 MB L3 Cache 16.00 MB
4.0 PCIe version 3.0
20 PCIe lanes 16
39.4 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The Intel Xeon W-11855M has a TDP of 45 W. The TDP of the Intel Core i9-9900KS is 127 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Xeon W-11855M Characteristic Intel Core i9-9900KS
45 W TDP (PL1 / PBP) 127 W
-- TDP (PL2) 159 W @ 28 s
-- TDP up --
35 W TDP down --
100 °C Tjunction max. 100 °C

Technical details

The Intel Xeon W-11855M has 18.00 MB cache and is manufactured in 10 nm. The cache of Intel Core i9-9900KS is at 16.00 MB. The processor is manufactured in 14 nm.

Intel Xeon W-11855M Characteristic Intel Core i9-9900KS
10 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2
BGA 1787 Socket LGA 1151-2
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems Windows 10, Windows 11, Linux
Q2/2021 Release date Q4/2019
450 $ Release price 524 $
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Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
Intel Xeon W-11855M (100%)
Intel Core i9-9900KS (84%)
⌀ Multi core performance in 5 CPU benchmarks
Intel Xeon W-11855M (89%)
Intel Core i9-9900KS (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
1540 (100%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
1333 (87%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
10518 (79%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
13305 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
1642 (100%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
1419 (86%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
7968 (84%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
9471 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
2142 (100%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
1650 (77%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
8624 (100%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
8514 (99%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
599 (100%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
518 (86%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
4586 (88%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
5226 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
Intel UHD Graphics 11th Gen (32 EU) @ 1.45 GHz
742 (100%)
Intel Core i9-9900KS Intel Core i9-9900KS
Intel UHD Graphics 630 @ 1.20 GHz
461 (62%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
18367 (94%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
19602 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
0 (0%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
77 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
0 (0%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
687 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
0 (0%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
148 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.20 GHz
0 (0%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.00 GHz
6012 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
0 (0%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 5.00 GHz
222 (100%)

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 Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 3.80 GHz
0 (0%)
Intel Core i9-9900KS Intel Core i9-9900KS
8C 16T @ 4.80 GHz
2201 (100%)

Devices using this processor

Intel Xeon W-11855M Intel Core i9-9900KS
Unknown Unknown

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