Intel Core i7-8665U vs Intel Core i3-1115GRE

Processor comparisons 20-01-2022

   Let's say you have difficulties with the choice of a processor, you will solve them by reading the comprehensive tests Intel Core i7-8665U vs Intel Core i3-1115GRE and see which is better for games or normal use for programming, machine learning, streaming, video editing, rendering. Here is useful information from real video editing and streaming tests or different benchmarks. A thorough review of all the specifications, to make it easier to understand, is summarized in the table.
   From the comparison video, you can get the results of parallel examination in synthetic type tests like VeraCrypt, Blender, PCMark 10, WPrime, SuperPi, 3DMark, Furmark, AIDA64, DaVinci Resolve Studio, Gears 5, MATLAB, RealBench, Blender, Handbrake, Dolphin Emulator, GeekBench 6, 5.2, Prime95, UserBenchmark, 7zip, PassMark, World of Tanks enCore Benchmark, Cinebench 23 (20, 15).
   Gaming performance of CPUs in:

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

After reading the results these benchmarks and videos, you can already make an briefed decision about which CPU is better to buy for gaming Intel Core i3-1115GRE or Intel Core i7-8665U.

Summary benchmark results

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

Core i7-8665U

51%

Core i3-1115GRE

51%

Gaming performance
Summary result of all game benchmarks.

Core i7-8665U

52%

Core i3-1115GRE

51%

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 run games. Because the cost of this processor reaches several tens of thousands of dollars. Therefore, if you think that the selected CPU has a little 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, Monster Hunter World, Horizon Zero Dawn, Ghostrunner, Forza Horizon 4, Shadow of the Tomb Raider, NBA 2K20, Control, Counter-Strike: Global Offensive (CS GO), Metro Exodus, Battlefield V, PlayerUnknown's Battlegrounds (PUBG), Resident Evil 7 Biohazard, DOTA 2A, The Witcher 3: Wild Hunt, Half-Life: Alyx, Hitman 3, League of Legends (LOL).

Gaming benchmark

Fortnite	92.4	90.6
Valorant	105.0	102.9
Cyberpunk 2077	58.8	57.7
Apex Legends	98.7	96.8
Call of Duty Warzone	78.7	77.2
Overwatch	85.0	83.4
Red Dead Redemption 2	72.4	71.0
DOOM Eternal	52.5	51.5
Warzone	81.9	80.3
Assassin's Creed	88.2	86.5
Valheim	87.1	85.4

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 participating in the comparing not only were the equipped with different video cards and different amounts of RAM. 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 compare it in one assembly with the video card that is installed in your computer.

Power consumption

Core i7-8665U

273%

Core i3-1115GRE

282%

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 i3-1115GRE is more energy efficient than the Core i7-8665U since it has less power consumption: 15W vs. 15W. 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

If you plan to use the processor not only for gaming, but also for streaming, machine learning, video editing or video rendering, programming, then first of all you need to pay attention to the performance in multi-threaded mode. In this mode, the CPU includes all cores and threads that it has to the maximum to achieve maximum efficiency. You will find out this data from the benchmark tables below. Before using 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 use only one core to run, 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 Core i7-8665U	Intel Core i3-1115GRE
Cinbench 15 Single-core	178	148
Cinbench 15 Multi-core	604	584
Cinbench 20 Single-core	464	394
Cinbench 20 Multi-core	1536	1442
Cinbench 23 Single-core	898	776
Cinbench 23 Multi-core	3991	3012

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

	Intel Core i7-8665U	Intel Core i3-1115GRE
Single-Core	2334	2597
Multi-Core	6546	6026

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

	Intel Core i7-8665U	Intel Core i3-1115GRE
Single-Core	1229	1272
Multi-Core	4277	2544

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 in your computer. And the easier it will be to upgrade the system in the future. The same benefits from the presence of overclocking. If the processor can be overclocked, increasing its performance, then it will still be able to produce maximum FPS in new games. It turns out that there is no longer a need to buy a new CPU to enjoy the games any longer. The savings are obvious!

	Intel Core i7-8665U	Intel Core i3-1115GRE
Announcement date	July 07, 2019	October 01, 2020
Type	Laptop	Embedded System
Socket	FCBGA1528	FCBGA1449
Core name	Whiskey Lake	Tiger Lake
Architecture	x86	x86
Generation	8	11
Turbo Frequency	4.8 MHz	3.9 MHz
Frequency	1.9 MHz	2.2 MHz
Cores	4	2
Threads	8	4
Bus rate	4 GT/s	4 GT/s
Bit	64	64
Lithography	14 nm	10 nm
Transistors count	1900 millions	3200 millions
Power consumption (TDP)	15 W	15 W
Memory type	DDR4-2400, LPDDR3-2133	DDR4-3200, LPDDR4x-3733, In -Band ECC
Max. Memory	64 Gb	64 Gb
Memory Frequency
Memory bandwidth	37.5 GB/s
L1 cache
L2 cache
L3 cache	8 MB	6 MB
Overclocking	No	No
Supports ECC	No	Yes
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 i3-1115GRE is 13% better than Core i7-8665U in terms of CPU frequency. Another difference is that Core i7-8665U has 2 more core than Core i3-1115GRE. 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 i7-8665U is better: 24
The number of parameters for which Intel Core i3-1115GRE is better: 8
However, it should be understood that all the number in the article above do not mean that taking them into account you should completely trust a simple comparison of these figures. Better to watch the testing video and read the opinion of of people who bought Intel Core i7-8665U and Intel Core i3-1115GRE before making a decision which processor to buy for gaming and which not.

Intel Core i7-8665U - all data

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

• Intel Core i7-8665U specs and review.

Intel Core i3-1115GRE - all data

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

• Intel Core i3-1115GRE specs and review.