Acer Nitro VN7-791G-7939 - RAM Upgrade Guide

The Acer VN7-791G-7939 laptop has two memory slots available for RAM upgrades. It supports a maximum of 16GB of memory using DDR3 SDRAM. The RAM should be in the SODIMM format, which is a compact type of memory module designed for laptops. For optimal performance, the memory should operate at a clock speed of 1600MHz, also referred to as PC3-12800.
Acer Nitro VN7-791G-7939 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Acer Nitro VN7-791G-7939 |
| 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 Acer Nitro VN7-791G-7939 RAM
How much RAM can I put in my Acer VN7-791G?
You can install up to 16GB total. The laptop has 2 memory slots, so that's typically 2x8GB sticks.
What type of memory does this laptop use?
It uses DDR3 SODIMM modules - those are the smaller laptop-sized memory sticks, not the full-size desktop ones.
What speed RAM should I get?
Go with 1600MHz DDR3 (also labeled as PC3-12800). That's the recommended speed for this model.
Can I mix different RAM sizes?
Yeah, you can mix sizes like 4GB + 8GB if you want 12GB total. But matching pairs (like 8GB + 8GB) usually perform a bit better since they can run in dual-channel mode.
Do I need to replace both sticks or can I just add one?
Depends what's already in there. If one slot is empty, just add a stick. If both slots are filled with smaller modules, you'll need to replace at least one to upgrade.
Will faster RAM like 1866MHz work?
It'll probably work but will just run at 1600MHz anyway. The system will downclock it to match what the motherboard supports, so save your money and stick with 1600MHz.