Lenovo G40-80 - RAM Upgrade Guide

The Lenovo G40-80 laptop supports RAM upgrades with two available memory slots. It can handle a maximum of 16GB of memory. The type of RAM compatible with this model is DDR3 SDRAM, and it uses a SODIMM format, which is a smaller type of memory module designed for laptops. For optimal performance, a RAM clock speed of 1600MHz, also referred to as PC3-12800, is recommended.
Lenovo G40-80 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo G40-80 |
| Total memory slots | 2 |
| Maximum RAM | 16GB |
| 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 Lenovo G40-80 RAM
How much RAM can I put in my Lenovo G40-80?
You can install up to 16GB total. The laptop has 2 slots, so you could do 2x8GB sticks or keep one original stick and add another.
What type of RAM does the G40-80 use?
It uses DDR3 SODIMM - that's the smaller laptop-sized memory sticks, not the full-size desktop ones. Make sure you get DDR3, not DDR4 or DDR5.
What speed RAM should I get?
1600MHz (also labeled as PC3-12800) is the recommended speed. You might find 1333MHz or 1866MHz sticks - they'll work but will run at 1600MHz anyway.
Can I mix different RAM sizes?
Yeah, you can mix sizes like 4GB + 8GB = 12GB total. Just know that dual-channel performance works better with matching pairs, but mixing still works fine for general use.
Do I need to match the existing RAM exactly?
Not really - as long as it's DDR3 SODIMM, it should work. Different brands are fine. Just try to match the speed (1600MHz) if possible.
Is upgrading to 16GB worth it?
Depends what you're doing. If you're just browsing and using office apps, 8GB is usually enough. For multitasking, photo editing, or keeping lots of browser tabs open, 16GB makes a noticeable difference.