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Gaming Performance Comparison

Recommended System Requirements
Game Core i5-5300U 2.3GHz Core M-5Y71
Genshin Impact 39% 120%
Cyberpunk 2077 84% 190%
Mafia: Definitive Edition 98% 212%
Assassins Creed: Valhalla 157% 306%
Call of Duty: Black Ops Cold War 85% 193%
Valorant 23% 94%
Microsoft Flight Simulator 108% 229%
Serious Sam 4 287% 511%
FIFA 21 72% 172%
eFootball PES 2021 98% 212%

In terms of overall gaming performance, the Intel Core i5-5300U 2.3GHz is massively better than the Intel Core M-5Y71 when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

The Core i5-5300U 2.3GHz was released less than a year after the Core M-5Y71, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Core i5-5300U 2.3GHz and the Core M-5Y71 both have 2 cores, and so are quite likely to struggle with the latest games, or at least bottleneck high-end graphics cards when running them. With a decent accompanying GPU, the Core i5-5300U 2.3GHz and the Core M-5Y71 may still be able to run slightly older games fairly effectively.

Both the Intel Core i5-5300U 2.3GHz and the Intel Core M-5Y71 have the same number of threads. Both the Core i5-5300U 2.3GHz and the Core M-5Y71 use hyperthreading. The Core i5-5300U 2.3GHz has 2 logical threads per physical core and the Core M-5Y71 has 2.

Multiple threads are useful for improving the performance of multi-threaded applications. Additional cores and their accompanying thread will always be beneficial for multi-threaded applications. Hyperthreading will be beneficial for applications optimized for it, but it may slow others down. For games, the number of threads is largely irrelevant, as long as you have at least 2 cores (preferably 4), and hyperthreading can sometimes even hit performance.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Core i5-5300U 2.3GHz and the Core M-5Y71 are from the same family of CPUs, and thus their clock speeds are directly comparable. With this in mind, it is safe to say that with a 1.1 GHz faster base clock rate, the Core i5-5300U 2.3GHz manages to provide massively better performance than the Core M-5Y71. However, the manages to eke GHz higher frequency when being stressed.

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The Core i5-5300U 2.3GHz and the Core M-5Y71 have the same L2 cache size, but the Core M-5Y71 has a 1 MB bigger L3 cache, so in this area, it wins out over the Core i5-5300U 2.3GHz.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.

The Core M-5Y71 has a 10 Watt lower Maximum TDP than the Core i5-5300U 2.3GHz (though they were created with the same size 14 nm manufacturing technology). What this means is the Core M-5Y71 will consume slightly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill slightly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

The Core i5-5300U 2.3GHz and the Core M-5Y71 both have an on-board GPU, which means that they will be capable of running basic graphics applications (i.e., games) without the need for a dedicated graphics card.

For an in-depth GPU comparison, click on the GPU comparison icon that you can find throughout Game-Debate:

On-board GPUs tend to be fairly awful in comparison to dedicated cards from the likes of AMD or Nvidia, but as they are built into the CPU, they also tend to be cheaper and require far less power to run (this makes them a good choice for laptops). We would recommend a dedicated card for running the latest games, but integrated GPUs are improving all the time and casual gamers may find less recent games perform perfectly acceptably.

CPU Core Details

CPU CodenameBroadwellBroadwell
MoBo SocketBGA 1168BGA 1234
Notebook CPUyesyes
Release Date01 Mar 201505 Jan 2015
CPU LinkGD LinkGD Link

CPU Technical Specifications

CPU Cores2vs2
CPU Threads4vs4
Clock Speed2.3 GHzvs1.2 GHz
Turbo Frequency2.9 GHzvs2.9 GHz
Max TDP15 Wvs5 W
Lithography14 nmvs14 nm
Bit Width64 Bitvs64 Bit
Max Temperature105°Cvs95°C
Virtualization Technologynovsno

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size512 KBvs512 KB
L3 Cache Size3 MBvs4 MB
Max Memory Size-vs16 GB
Memory Channels-vs2
ECC Memory Supportnovsno

CPU Graphics

GraphicsIntel HD Graphics 5500 MobileHD M-5Y71
Base GPU Frequency100 MHzvs300 MHz
Max GPU Frequency950 MHzvs900 MHz
Displays Supported-vs-

CPU Package and Version Specifications

Package Size-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewCore i7-5300U 2-Core 2.3GHz is a super energy efficient mobile processor based on the 14nm, Broadwell Microarchitecture.

It offers 2 Physical Cores (4 Logical), initially clocked at 2.3GHz, which may go up to 2.9GHz and 3MB of L3 Cache.
Among its many features, HyperThreading, Turbo Boost and Virtualization are activated.

The processor integrates powerful Graphics called Intel HD Graphics 5500, with ?? Execution Units, initially clocked at 300MHz and that go up to 950MHz, in Turbo Mode which share the L2 Cache and system RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 15W.

It is a powerful processor whose performance is good. It's thus capable of running most applications smoothly without any problem.
Core M 5Y71 is an Ultra Low Voltage, Mobile Processor, based on the 14nm Broadwell MicroArchitecture.

It offers 2 Physical Cores (4 Logical), Initially Clocked at 1.2GHz that go up to 2.9GHz, in Turbo Mode and 4MB of L3 Cache.
Among its many features, HyperThreading, Turbo Boost and Virtualization are activated.

The Processor Integrates Mildly Powerful Graphics called Intel HD M-5Y71, with 24 Execution Units, initially clocked at 300MHz and that go up to 900MHz, in Turbo Mode which share the L Caches and System RAM with the processor.
Both the processor and integrated graphics have a rated board TDP of 4.5W.

It offers average performance. This means it will become a bottleneck in some demanding applications.