Intel Core i7-1255UL vs Intel Core i9-9900K

Processor comparisons   11-09-2022
   You may have difficulties with the choice of a processor, you will solve them by reading the detailed tests Intel Core i7-1255UL vs Intel Core i9-9900K and understand which is better for games or normal use for streaming, rendering, programming, video editing, machine learning. Here is all information from real video editing and streaming tests or several benchmarks. A careful review of all the technical characteristics, so that it can be easier to understand, is made by the table.
   From the video comparison, you can get the results of joint testing in synthetic type tests like Dolphin Emulator, Furmark, PassMark, Blender, Blender, WPrime, GeekBench 6, 5.2, World of Tanks enCore Benchmark, 3DMark, Prime95, AIDA64, DaVinci Resolve Studio, 7zip, PCMark 10, Handbrake, SuperPi, RealBench, Cinebench 23 (20, 15), MATLAB, Gears 5, VeraCrypt, UserBenchmark.
   Gaming performance of processors in:

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

After looking at the data these benchmarks and videos, you can already make an informed decision about which CPU is better to buy for gaming Intel Core i9-9900K or Intel Core i7-1255UL.

Summary benchmark results

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

Core i7-1255UL

55%

Core i9-9900K

55%

Gaming performance
Summary result of all game benchmarks.

Core i7-1255UL

54%

Core i9-9900K

55%

The maximum result in this parameter is 100 percent, which is the performance of the most powerful processor currently available. And of course, this is a server processor, on which no one will play games. Because this processor costs several tens of thousands of dollars. Therefore, if you think that the selected CPU has a little game result, 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: Resident Evil 7 Biohazard, Half-Life: Alyx, Counter-Strike: Global Offensive (CS GO), NBA 2K20, Ghostrunner, Shadow of the Tomb Raider, Forza Horizon 4, Microsoft Flight Simulator, Hitman 3, Metro Exodus, League of Legends (LOL), Monster Hunter World, The Witcher 3: Wild Hunt, PlayerUnknown's Battlegrounds (PUBG), Horizon Zero Dawn, DOTA 2A, Battlefield V, Control.

Gaming benchmark

Fortnite	95.3	98.2
Valorant	108.3	111.6
Cyberpunk 2077	60.6	62.5
Apex Legends	101.8	104.9
Call of Duty Warzone	81.2	83.7
Overwatch	87.7	90.4
Red Dead Redemption 2	74.7	77.0
DOOM Eternal	54.1	55.8
Warzone	84.5	87.0
Assassin's Creed	91.0	93.7
Valheim	89.9	92.6

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 computers that were in the comparisons not only did they have different amounts of RAM and different video cards. But users also tested them at different screen resolutions: 4K, 2K or FullHD. So 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

Core i7-1255UL

286%

Core i9-9900K

45%

To make a finishing choice 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 Core i7-1255UL is more energy efficient than the Core i9-9900K since it has less power consumption: 15W vs. 95W. Power consumption is especially important for laptops. Also, when choosing a processor cooling system, you need to know its TDP. You need to buy a cooler that has the TDP data specified in the specification was greater than the TDP of the compared processor.

Software benchmarks

For example you want to use the processor not only for gaming, but also for machine learning, streaming, video editing or video rendering, programming, then the main parameter for you is its performance in multi-threaded mode. In this mode, the processor turns on all cores and threads that it has to the maximum to reach maximum performance. You will learn this data from the benchmark tables below. Before using the data from these tests, be sure to check whether the software you are going to use on your computer supports multi-threaded mode. Since there are still many programs that can use only one core to run, and all the advantages 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 Core i7-1255UL	Intel Core i9-9900K
Cinbench 15 Single-core	238	219
Cinbench 15 Multi-core	1743	2245
Cinbench 20 Single-core	572	518
Cinbench 20 Multi-core	3955	4995
Cinbench 23 Single-core	1337	1284
Cinbench 23 Multi-core	13035	12450

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

	Intel Core i7-1255UL	Intel Core i9-9900K
Single-Core	3127	2947
Multi-Core	18247	18753

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

	Intel Core i7-1255UL	Intel Core i9-9900K
Single-Core	1290	1301
Multi-Core	7156	9986

Comparison of specifications

In the specification comparison table, the processor release date and overclocking capability will be the most useful. The newer the processor, the longer it will last you. And the easier it will be to upgrade the system later. 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 new games. Accordingly, there is no longer a need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	Intel Core i7-1255UL	Intel Core i9-9900K
Announcement date	September 10, 2022	October 01, 2018
Type	Embedded	Desktop
Socket	FCBGA1744	FCLGA1151-2
Core name	Alder Lake	Coffee Lake
Architecture	x86	x86
Generation	12	9
Turbo Frequency	4.7 MHz	5 MHz
Frequency	1.7 MHz	3.6 MHz
Cores	10	8
Threads	12	16
Bus rate	8 GT/s	8 GT/s
Bit	64	64
Lithography	7 nm	14 nm
Transistors count	9800 millions	8600 millions
Power consumption (TDP)	15 W	95 W
Memory type	Up to DDR5 4800 MT/s Up to DDR4 3200 MT/s Up to LPDDR5 5200 MT/s Up to LPDDR4x 4267 MT/s	DDR4-2666
Max. Memory	64 Gb	128 Gb
Memory Frequency
Memory bandwidth	45.8 GB/s	41.6 GB/s
L1 cache
L2 cache
L3 cache	12 MB	16 MB
Overclocking	No	No
Supports ECC	No	No
Part number	Expansion Options

In this comparison block, you should pay attention to the differences in clock speed and the number of cores. Here Core i9-9900K is 52% better than Core i7-1255UL in terms of CPU frequency. Another difference is that Core i7-1255UL has 2 more core than Core i9-9900K. 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 Core i7-1255UL is better: 12
The number of parameters for which Intel Core i9-9900K is better: 21
However, it should be realized that all the number in the article above do not mean that taking them into account you should fully trust a simple quantitative comparison. Be sure to watch the testing video and read the reviews of real owners of Intel Core i7-1255UL and Intel Core i9-9900K before making a selection which CPU to buy for gaming and which not.

Intel Core i7-1255UL - all data

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

• Intel Core i7-1255UL specs and review.

• Intel Core i9-9900K specs and review.