Intel Xeon W-11855M vs Intel Core i7-6900K

Processor comparisons   13-08-2021
   If you can't decide which CPU to buy, you can make a choice by looking at the Intel Xeon W-11855M vs Intel Core i7-6900K tests and see which is better for games or simple use for programming, streaming, rendering, machine learning, video editing. Here is all information from real streaming and video editing tests or several benchmarks. A step-by-step analysis of all the specifications, to make it easier to understand, is presented in the form of the table.
   From the video comparison, you can get the results of parallel examination in software tests such as Dolphin Emulator, MATLAB, GeekBench 6, 5.2, PassMark, 7zip, Prime95, Furmark, Blender, Handbrake, UserBenchmark, DaVinci Resolve Studio, Cinebench 23 (20, 15), Gears 5, 3DMark, PCMark 10, SuperPi, RealBench, AIDA64, World of Tanks enCore Benchmark, Blender, WPrime, VeraCrypt.
   Gaming performance of CPUs in:

Fallout 76
Death Stranding
Cyberpunk 2077
Overwatch
World of Warcraft: Shadowlands
Rainbow Six Siege
Halo Infinite
Borderlands 3
Assassin's Creed Valhalla
Fortnite
Call of Duty: Warzone and Modern Warfare
Red Dead Redemption 2
Grand Theft Auto V
Apex Legends
Valorant
Valheim
Watch Dogs Legion
DOOM: Eternal
Last Man Standing

After looking at the data of parallel benchmarks and videos, you can already make an briefed decision about which CPU is better to buy for gaming Intel Core i7-6900K or Intel Xeon W-11855M.

Summary benchmark results

As a percentage of the maximum value based on a sample from the entire base of all processors
Processor Benchmark

Xeon W-11855M

54%

Core i7-6900K

54%

Gaming performance
Summary result of all game benchmarks.

Xeon W-11855M

54%

Core i7-6900K

55%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor at the moment. And of course, this is a server processor, on which no one will run games. Because the cost of this processor reaches several tens of thousands of dollars. And if it seems to you that the selected CPU has a low game result, just look at the FPS that it produces in real games in the final table below.
List of less popular games in which processors were compared: Microsoft Flight Simulator, Shadow of the Tomb Raider, Metro Exodus, Horizon Zero Dawn, Resident Evil 7 Biohazard, PlayerUnknown's Battlegrounds (PUBG), Battlefield V, Control, Monster Hunter World, DOTA 2A, Ghostrunner, Counter-Strike: Global Offensive (CS GO), Half-Life: Alyx, League of Legends (LOL), Hitman 3, NBA 2K20, The Witcher 3: Wild Hunt, Forza Horizon 4.

Gaming benchmark

Fortnite	96.0	97.2
Valorant	109.1	110.4
Cyberpunk 2077	61.1	61.8
Apex Legends	102.6	103.8
Call of Duty Warzone	81.8	82.8
Overwatch	88.4	89.4
Red Dead Redemption 2	75.3	76.2
DOOM Eternal	54.6	55.2
Warzone	85.1	86.1
Assassin's Creed	91.6	92.7
Valheim	90.6	91.6

The numbers in this table indicate the maximum FPS that was received on the device with the corresponding processor. Depending on the configuration of the computer (RAM size and Video Card) and graphics quality settings (Ultra, Medium, Normal), the results may differ quite significantly. We recommend that you better study the results of the Cinebench, GeekBench and Passmark becnmarks.
The tested computers not only did they have different amounts of RAM and different video cards. But users also tested them at different screen resolutions: FullHD, 2K or 4K. Therefore, the game benchmark data is approximate. But all video cards met the average system requirements of games. You will get more accurate information about how powerful the processor will be in games, if you get acquainted with the benchmarks that are made with the same video card that is installed in your computer.

Power consumption

Xeon W-11855M

119%

Core i7-6900K

24%

To make a final decision on which processor is better, you should also consider the generation of its core. The newer the processor generation, the better its performance in games and benchmarks, as well as its energy efficiency. In this case the Xeon W-11855M is more energy efficient than the Core i7-6900K as it consumes less power: 45W vs. 140W. Power consumption is especially important for laptops. And TDP should be taken into account when choosing a processor cooling system. It is necessary to calculate so that the TDP data specified in the cooler specification is greater than the TDP of the compared processor.

Software benchmarks

Let's say you want to use the processor not only for gaming, but also for streaming, machine learning, programming, video editing or video rendering, then the main parameter for you is its performance in multi-threaded mode. In this mode, to reach maximum performance, the processor uses all threads and cores that it has. You will find out this data from the benchmark tables below. Before you take into account the data from these tests, be sure to find out whether the software that you are going to use on your computer can work in multi-threaded mode. Since there are still many programs that can use only one core to work, and all the benefit of multi-core mode are unused.
Cinebench 23, 20 an 15
The results of this benchmark show Single-threaded and Multi-threaded CPU performance

	Intel Xeon W-11855M	Intel Core i7-6900K
Cinbench 15 Single-core	221	207
Cinbench 15 Multi-core	1625	1439
Cinbench 20 Single-core	203	484
Cinbench 20 Multi-core	6280	3668
Cinbench 23 Single-core	539	1151
Cinbench 23 Multi-core	15174	11326

Passmark
This popular benchmark displays Multi-threaded and Single-threaded processor performance

	Intel Xeon W-11855M	Intel Core i7-6900K
Single-Core	3235	2405
Multi-Core	15444	13871

GeekBench 6, 5.2
This benchmark shows Multi-threaded and Single-threaded processor performance

	Intel Xeon W-11855M	Intel Core i7-6900K
Single-Core	1612	1016
Multi-Core	7857	8971

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most helpful. The newer the processor, the longer it will last you. And the easier it will be to upgrade the system in the future. The same can be said about overclocking. If the processor can be overclocked, increasing its performance, then it will continue to maintain maximum FPS in the newest games. The economy are obvious! It turns out that you do not need to buy a new CPU to enjoy the games any longer.

	Intel Xeon W-11855M	Intel Core i7-6900K
Announcement date	April 01, 2021	April 01, 2016
Type	Laptop	Desktop
Socket	FCBGA1787	FCLGA2011-3
Core name	Tiger Lake	Broadwell E
Architecture	x86	x86
Generation	11	6
Turbo Frequency	4.9 MHz	3.7 MHz
Frequency	3.2 MHz	3.2 MHz
Cores	6	8
Threads	12	16
Bus rate	8 GT/s
Bit	64	64
Lithography	10 nm	14 nm
Transistors count	2600 millions	2800 millions
Power consumption (TDP)	45 W	140 W
Memory type	Up to 3200 MT/s	DDR4 2400/2133
Max. Memory	128 Gb	128 Gb
Memory Frequency
Memory bandwidth	51.2 GB/s
L1 cache
L2 cache
L3 cache	18 MB	20 MB
Overclocking	No	No
Supports ECC	Yes	No
Part number

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Another difference is that Core i7-6900K has 2 more core than Xeon W-11855M. Also keep in mind that high CPU frequency affects battery life through power consumption (relevant for laptops).

Result:
The number of parameters for which Intel Xeon W-11855M is better: 15
The number of parameters for which Intel Core i7-6900K is better: 18
However, it should be realized that all the number in the table above do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Be sure to watch the testing video and read the reviews of of people who bought Intel Xeon W-11855M and Intel Core i7-6900K before making a decision which CPU to buy for gaming and which not.

Intel Xeon W-11855M - all data

• Cinebench r15 score
• Cinebench r20 score
• Cinebench r23 score
• GeekBench 6, 5.2 score

• Intel Xeon W-11855M specs and review.

Intel Core i7-6900K - all data

• Cinebench r15 score
• Cinebench r20 score
• Cinebench r23 score
• GeekBench 6, 5.2 score

• Intel Core i7-6900K specs and review.