Xeon W-11855M vs i9-9900K

VS

Aggregate performance score

Core i9-9900K
2018
8 cores / 16 threads, 95 Watt
11.49
+1%
Xeon W-11855M
2021
6 cores / 12 threads, 35 Watt
11.38

Core i9-9900K outperforms Xeon W-11855M by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing Core i9-9900K and Xeon W-11855M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking686696
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation7.91no data
Market segmentDesktop processorServer
SeriesCore i9 (Desktop)Intel Tiger Lake
Power efficiency11.4430.75
Architecture codenameCoffee Lake-R (2018−2019)Tiger Lake-H (2021)
Release date19 October 2018 (6 years ago)11 May 2021 (3 years ago)
Launch price (MSRP)$488no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9900K and Xeon W-11855M basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores8 (Octa-Core)6 (Hexa-Core)
Threads1612
Base clock speed3.6 GHz3.2 GHz
Boost clock speed5 GHz4.9 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s8 GT/s
L1 cache64K (per core)96K (per core)
L2 cache256K (per core)1.25 MB (per core)
L3 cache16 MB (shared)18 MB (shared)
Chip lithography14 nm10 nm SuperFin
Die size178 mm2no data
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i9-9900K and Xeon W-11855M compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1 (Uniprocessor)1
SocketLGA-1151FCBGA1787
Power consumption (TDP)95 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900K and Xeon W-11855M. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI++
FMA-+
AVX++
vPro++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology2.0no data
Hyper-Threading Technology++
TSX++
Idle States+no data
Thermal Monitoring++
Flex Memory Accessno data+
SIPP++
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

Core i9-9900K and Xeon W-11855M technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data
Secure Key++
MPX+-
Identity Protection+-
SGXYes with Intel® ME-
OS Guard++

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900K and Xeon W-11855M are enumerated here.

AMD-V+-
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900K and Xeon W-11855M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4
Maximum memory size128 GB128 GB
Max memory channels22
Maximum memory bandwidth44.668 GB/s51.2 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 630Intel UHD Graphics for 11th Gen Intel Processors
Max video memory64 GBno data
Quick Sync Video++
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.2 GHz1.45 GHz
Execution Unitsno data32
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i9-9900K and Xeon W-11855M integrated GPUs.

Number of displays supported34

Graphics image quality

Maximum display resolutions supported by Core i9-9900K and Xeon W-11855M integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@24Hz4096x2304@60Hz
Max resolution over eDP4096x2304@60Hz4096x2304@60Hz
Max resolution over DisplayPort4096x2304@60Hz7680x4320@60Hz

Graphics API support

APIs supported by Core i9-9900K and Xeon W-11855M integrated GPUs, sometimes API versions are included.

DirectX1212.1
OpenGL4.54.6

Peripherals

Specifications and connection of peripherals supported by Core i9-9900K and Xeon W-11855M.

PCIe version3.04.0
PCI Express lanes1620

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i9-9900K 11.49
+1%
Xeon W-11855M 11.38

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i9-9900K 18248
+1%
Xeon W-11855M 18069

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i9-9900K 1701
Xeon W-11855M 1992
+17.1%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i9-9900K 8053
+2.6%
Xeon W-11855M 7852

Geekbench 5.5 Multi-Core

i9-9900K 8845
+23%
Xeon W-11855M 7191

Gaming performance

Pros & cons summary


Performance score 11.49 11.38
Integrated graphics card 3.09 5.58
Recency 19 October 2018 11 May 2021
Physical cores 8 6
Threads 16 12
Chip lithography 14 nm 10 nm
Power consumption (TDP) 95 Watt 35 Watt

i9-9900K has a 1% higher aggregate performance score, and 33.3% more physical cores and 33.3% more threads.

Xeon W-11855M, on the other hand, has 80.6% faster integrated GPU, an age advantage of 2 years, a 40% more advanced lithography process, and 171.4% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i9-9900K and Xeon W-11855M.

Note that Core i9-9900K is a desktop processor while Xeon W-11855M is a server/workstation one.


Should you still have questions on choice between Core i9-9900K and Xeon W-11855M, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core i9-9900K
Core i9-9900K
Intel Xeon W-11855M
Xeon W-11855M

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Community ratings

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Questions & comments

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