Asus X456UF - RAM Upgrade Guide
The Asus X456UF laptop has two memory slots for RAM, but only one of them can be upgraded by the user. The maximum amount of memory the laptop can support is 12GB, with up to 8GB of that being allocatable to the user-accessible slot. It uses DDR3 SDRAM as its memory type, which comes in a small outline dual inline memory module (SODIMM) format. For optimal performance, the recommended clock speed for the RAM is 1600MHz, which corresponds to the PC3-12800 standard.
Asus X456UF Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus X456UF |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 12GB (up to 8GB in user accessible slot) |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1600MHz (PC3-12800) |
| Voltage | Low - 1.35V (DDR3L / PC3L) |
| Number of pins | 204-pin |
FAQ about Asus X456UF RAM
How much RAM can I add to my X456UF laptop?
You can add up to 8GB in the single accessible slot. The laptop has 4GB soldered on the motherboard that can't be changed, so with an 8GB stick you'll have 12GB total.
What type of memory do I need for this laptop?
You need DDR3 SODIMM modules - the smaller laptop-sized RAM sticks. Make sure it's DDR3, not DDR4 or DDR5, as they won't fit or work.
What speed RAM should I get?
Go with 1600MHz (also labeled as PC3-12800). The laptop might accept other speeds but 1600MHz is what it's designed for and will work best.
Can I upgrade both RAM slots?
No, only one slot is accessible for upgrades. The other slot has 4GB permanently soldered to the motherboard, so you're stuck with that.
Is it worth upgrading from 4GB to 12GB?
Definitely. Going from 4GB to 12GB makes a huge difference for multitasking, browser tabs, and general system responsiveness. It's one of the best upgrades you can do for this model.
Can I use faster RAM like 1866MHz or 2133MHz?
The RAM will probably work but will automatically slow down to 1600MHz to match what the system supports. No point paying extra for faster speeds you can't use.