HX mobile CPUs are a high-performance generation of laptop processors. Optimised for AAA gaming, streaming, and content creation, HX CPUs are perfect for those looking to get the most out of their portable set-up. But what makes an HX processor different and why do you want one for gaming? We’ll be answering both these questions and more in this blog post.

What are HX mobile CPUs?
and multi-threaded workloads. Harness blisteringly fast speeds and enhanced mobile efficiency to enjoy playing all your favourite games wherever you go.
You can find HX processors in the 12th, 13th, 14th, and Core Ultra CPU generations with the standard i5, i7, and i9 models available. Our handy table below details all the key differences between the HX variants.
Intel Core Ultra HX Proceossors
| Intel Core Ultra 5 245HX | Intel Core Ultra 5 235HX | Intel Core Ultra 7 265HX | Intel Core Ultra 7 255HX | Intel Core Ultra 9 275HX | Intel Core Ultra 9 285HX | |
|---|---|---|---|---|---|---|
| Cores | 14 cores (6P and 8E) | 14 cores (6P and 8E) | 20 cores (8P and 12E) | 20 cores (8P and 12E | 24 cores (8P and 16E) | 24 cores (8P and 16E) |
| Threads | 14 threads | 14 threads | 20 threads | 20 threads | 24 threads | 24 threads |
| Boost clock speed | Up to 5.1GHz | Up to 5.1GHz | Up to 5.3GHz | Up to 5.2GHz | Up to 5.4GHz | Up to 5.5GHz |
| Cache | 24MB | 24MB | 30MB | 30MB | 36MB | 36MB |
| TDP | 55W TDP | 55W TDP | 55W TDP | 55W TDP | 55W TDP | 55W TDP |
Intel 14th HX Processors
| i9 14900HX | i7 14700HX | i7 14650HX | i5 14500HX | i5 14450HX | |
|---|---|---|---|---|---|
| Cores | 24 (8P and 16E) | 20 (8P and 12E) | 16 (8P and 8E) | 14 (6P and 8E) | 10 (6P and 4E) |
| Threads | 32 | 28 | 24 | 14 | 10 |
| Boost clock speed | Up to 5.8GHz | Up to 5.5GHz | Up to 5.2GHz | Up to 4.9GHz | Up to 4.8GHz |
| Cache | 36MB | 33MB | 30MB | 24MB | 20MB |
| TDP | 55W | 55W | 55W | 55W | 55W |
Intel 13th HX Processors
| i9 13980HX | i9 13950HX | i9 13900HX | i7 13850HX | i7 13700HX | i7 13650HX | i5 13600HX | i5 13500HX | i5 13450HX | |
|---|---|---|---|---|---|---|---|---|---|
| Cores | 24 (8P and 16E) | 24 (8P and 16E) | 24 (8P and 16E) | 20 (8P and 12E) | 16 (8P and 8E) | 14 (6P and 8E) | 14 (6P and 8E) | 14 (6P and 8E) | 10 (6P and 4E) |
| Threads | 32 | 32 | 32 | 28 | 24 | 20 | 20 | 20 | 16 |
| Boost clock speed | Up to 5.6GHz | Up to 5.5GHz | Up to 5.4GHz | Up to 5.3GHz | Up to 5.0GHz | Up to 4.9GHz | Up to 4.7GHz | Up to 4.6GHz | Up to 4.6GHz |
| Cache | 36MB | 36MB | 36MB | 30MB | 30MB | 24MB | 24MB | 24MB | 20MB |
| TDP | 55W | 55W | 55W | 55W | 55W | 55W | 55W | 55W | 55W |
Intel 12th HX Processors
| i9 12950HX | i9 12900HX | i7 12850HX | i7 12800HX | i5 12600HX | |
|---|---|---|---|---|---|
| Cores | 16 (8P and 8E) | 16 (8P and 8E) | 16 (8P and 8E) | 16 (8P and 8E) | 12 (4P and 8E) |
| Threads | 24 | 24 | 24 | 24 | 16 |
| Boost clock speed | Up to 5GHz | Up to 5GHz | Up to 4.8GHz | Up to 4.8GHz | Up to 4.6GHz |
| Cache | 30MB | 30MB | 25MB | 25MB | 16MB |
| TDP | 55W | 55W | 55W | 55W | 55W |
How Do HX Processors Differ from Standard Mobile CPUs?
The key difference between HX CPUs and standard mobile processors is the number of cores. HX processors utilise desktop silicone with a higher core count to deliver exceptional performance. Perfect for enthusiast-grade gaming laptops or portable workstations! However, this does with an increase in TDP. Any laptop with an HX processor will need to have an extensive built-in thermal system to ensure temperatures are kept at optimum levels.

What’s more, HX processors feature support for plenty of the latest tech to power your demanding workloads. This includes PCIe 5.0 and both DDR4 or DDR5 RAM.
Is an HX Mobile CPU Good for Gaming?
HX mobile CPUs have been designed for high-speed portable gaming. With an HX processor, there is no compromising on performance. You can achieve the same standard as a desktop PC with your gaming laptop thanks to the high core count and fast speeds.
What’s more, with i5, i7, and i9 HX models available you can find the perfect HX processor that perfectly suits your needs, from casual to AAA enthusiast gaming.

Upgrade Your Gaming to HX!
If you’ve been convinced to upgrade to an HX gaming laptop, then you’re in luck! Overclockers UK have plenty of high-quality laptops that boast powerful HX processors and cutting-edge GPUs to render your games like never before.
We’ve got our top picks for you below, but you can also shop all our gaming laptops if these don’t suit your gaming demands or aesthetic.
OcUK Pinnacle RTX 5080 Gaming Laptop
- 18.0” UHD display
- 200Hz refresh rate
- Intel Ultra Core 9 275HX CPU and NVIDIA RTX 5080
- 32GB DDR5 RAM
- 2TB NVMe PCIe SSD


ASUS ROG Strix G16 Gaming Laptop
- 16.0[” WQXGA display
- 240Hz refresh rate
- Intel Core Ulltra 9 275HX CPU and NVIDIA RTX 5080
- 32GB DDR5 RAM
- 2TB PCIe SSD
MSI Stealth 18 Gaming Laptop
- 18.0” UHD+
- 120Hz refresh rate
- Intel Core Ultra 9 275HX CPU and NVIDIA RTX 5080
- 64GB DDR5 RAM
- 2TB NVMe PCIe SSD
- Windows 11 Pro

Learn More About Laptops
Do You Have an HX Mobile CPU?
Does your laptop feature an HX processor? How has it enhanced your gaming performance? Let us know in the comments.




