Select any two CPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Core i5-6260U 1.8GHz Core i5-5287U 2.9GHz
Cyberpunk 2077 75% 36%
Assassins Creed: Valhalla 135% 83%
Call of Duty: Black Ops Cold War 69% 32%
FIFA 21 63% 27%
Microsoft Flight Simulator 98% 54%
Watch Dogs Legion 135% 83%
World of Warcraft: Shadowlands 172% 111%
Grand Theft Auto VI 187% 123%
Horizon: Zero Dawn 98% 54%
Genshin Impact 32% 3%

In terms of overall gaming performance, the Intel Core i5-5287U 2.9GHz is massively better than the Intel Core i5-6260U 1.8GHz 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 i5-6260U 1.8GHz was released less than a year after the Core i5-5287U 2.9GHz, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

Both CPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings (assuming they are accompanied by equivalently powerful GPUs).

The Core i5-6260U 1.8GHz and the Core i5-5287U 2.9GHz 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 i5-6260U 1.8GHz and the Core i5-5287U 2.9GHz may still be able to run slightly older games fairly effectively.

Both the Intel Core i5-6260U 1.8GHz and the Intel Core i5-5287U 2.9GHz have the same number of threads. Both the Core i5-6260U 1.8GHz and the Core i5-5287U 2.9GHz use hyperthreading. The Core i5-6260U 1.8GHz has 2 logical threads per physical core and the Core i5-5287U 2.9GHz 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 i5-6260U 1.8GHz and Core i5-5287U 2.9GHz are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Core i5-5287U 2.9GHz has a 1.1 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. In this case, however, the difference is probably a good indicator that the is superior.

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 i5-6260U 1.8GHz and the Core i5-5287U 2.9GHz have the same L2 cache size, but the Core i5-6260U 1.8GHz has a 1 MB bigger L3 cache, so in this area, it wins out over the Core i5-5287U 2.9GHz.

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 i5-6260U 1.8GHz has a 13 Watt lower Maximum TDP than the Core i5-5287U 2.9GHz (though they were created with the same size 14 nm manufacturing technology). What this means is the Core i5-6260U 1.8GHz 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 i5-6260U 1.8GHz and the Core i5-5287U 2.9GHz 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 CodenameSkylake-HBroadwell
MoBo SocketBGA 1356Not sure
Notebook CPUyesyes
Release Date01 Sep 201501 Jan 2015
CPU LinkGD LinkGD Link

CPU Technical Specifications

CPU Cores2vs2
CPU Threads4vs4
Clock Speed1.8 GHzvs2.9 GHz
Turbo Frequency2.9 GHzvs3.3 GHz
Max TDP15 Wvs28 W
Lithography14 nmvs14 nm
Bit Width64 Bitvs64 Bit
Max Temperature100°Cvs105°C
Virtualization Technologynovsno

CPU Cache and Memory

L1 Cache Size128 KBvs128 KB
L2 Cache Size512 KBvs512 KB
L3 Cache Size4 MBvs3 MB
Max Memory Size-vs-
Memory Channels-vs2
ECC Memory Supportnovsno

CPU Graphics

GraphicsIris i5 6260UIris Pro Graphics 6100 Mobile
Base GPU Frequency300 MHzvs-
Max GPU Frequency950 MHzvs-
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 i5-6260U 1.8GHz is a Super Energy Efficient, Performance Mobile Processor, based on the 14nm Skylake MicroArchitecture.

It offers 2 Physical Cores (4 Logical), initially clocked at 1.8GHz, which may go up to 2.9GHz and 4MB of L3 Cache.
Among its many features, HyperThreading, Turbo Boost 2.0 and Virtualization are activated.

The Processor Integrates Very Powerful Graphics called Intel Iris i5 6260U, with 48 Execution Units, initially clocked at 300MHz and that go up to 950MHz, 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 15W.

It offers average performance. This means it will become a bottleneck in some demanding applications.
The Intel Core i5-5287U is a 5th gen mobile chip built around the 14nm Broadwell microarchitecture. This CPU releases in the first quarter of 2015. It packs 2 physical cores and 4 threads (making 4 logical cores) initially clocked at 2.90GHz, which will go up to 3.30GHZ in Turbo mode. Intel's HyperThreading technology is enabled to improve multitasking and program performance. It has an L1, L2 and L3 cache of 128 KB, 512 KB and 3MB respectively. It also integrates the powerful Intel Iris Pro 6100 Mobile graphics processing unit, and has a TDP of 28W.