Xeon W-10855M vs i9-9900X

VS

Aggregate performance score

Core i9-9900X
2018
10 cores / 20 threads, 165 Watt
13.73
+73.1%
Xeon W-10855M
2020
6 cores / 12 threads, 45 Watt
7.93

Core i9-9900X outperforms Xeon W-10855M by an impressive 73% based on our aggregate benchmark results.

Primary details

Comparing Core i9-9900X and Xeon W-10855M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking542953
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.08no data
Market segmentDesktop processorMobile workstation
SeriesIntel Core i9Intel Comet Lake
Power efficiency7.8716.68
Architecture codenameSkylake (server) (2017−2018)Comet Lake-H (2020)
Release date19 October 2018 (6 years ago)13 May 2020 (4 years ago)
Launch price (MSRP)$989no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9900X and Xeon W-10855M 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 cores10 (Deca-Core)6 (Hexa-Core)
Threads2012
Base clock speed3.5 GHz2.8 GHz
Boost clock speed4.5 GHz4.9 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s8 GT/s
Multiplier35no data
L1 cache64 KB (per core)384 KB
L2 cache1 MB (per core)1.5 MB
L3 cache19.25 MB (shared)12 MB
Chip lithography14 nm14 nm
Maximum core temperature92 °C100 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i9-9900X and Xeon W-10855M 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
SocketFCLGA2066FCBGA1440
Power consumption (TDP)165 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900X and Xeon W-10855M. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i9-9900X and Xeon W-10855M technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB++
Secure Keyno data+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900X and Xeon W-10855M are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900X and Xeon W-10855M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR4
Maximum memory size128 GB128 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s45.8 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AIntel UHD Graphics for 10th Gen Intel Processors
Quick Sync Video-+
Graphics max frequencyno data1.2 GHz

Graphics interfaces

Available interfaces and connections of Core i9-9900X and Xeon W-10855M integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core i9-9900X and Xeon W-10855M integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@30Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core i9-9900X and Xeon W-10855M integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core i9-9900X and Xeon W-10855M.

PCIe version3.03.0
PCI Express lanes4416

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.

i9-9900X 13.73
+73.1%
Xeon W-10855M 7.93

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.

i9-9900X 21815
+73.2%
Xeon W-10855M 12594

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.

i9-9900X 1451
Xeon W-10855M 1497
+3.2%

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.

i9-9900X 9300
+57.6%
Xeon W-10855M 5901

Gaming performance

Pros & cons summary


Performance score 13.73 7.93
Recency 19 October 2018 13 May 2020
Physical cores 10 6
Threads 20 12
Power consumption (TDP) 165 Watt 45 Watt

i9-9900X has a 73.1% higher aggregate performance score, and 66.7% more physical cores and 66.7% more threads.

Xeon W-10855M, on the other hand, has an age advantage of 1 year, and 266.7% lower power consumption.

The Core i9-9900X is our recommended choice as it beats the Xeon W-10855M in performance tests.

Be aware that Core i9-9900X is a desktop processor while Xeon W-10855M is a mobile workstation one.


Should you still have questions on choice between Core i9-9900X and Xeon W-10855M, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i9-9900X
Core i9-9900X
Intel Xeon W-10855M
Xeon W-10855M

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.1 102 votes

Rate Core i9-9900X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.5 67 votes

Rate Xeon W-10855M on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i9-9900X or Xeon W-10855M, agree or disagree with our judgements, or report an error or mismatch.