How to check your GPU VRAM size?
VRAM or video RAM is a memory that is used by GPU for performing different tasks. Since some algorithms (especially Ethash, which is the algorithm of the most popular mining coin Ethereum) require a larger memory size to save and process the DAG file, some cards with lower VRAM can't mine these algorithms.
Note Keep in mind that computer's RAM (which is usually 8 GB or 16 GB) is not the same as GPU VRAM.
For example, ETH DAG size is way over 4 GB, so only the GPUs with VRAM 6 GB or more can mine ETH. On the other hand, ETC has much lower DAG size, so you can mine it with 4 GB GPUs as well.
You can check your GPU VRAM size through the Windows settings.
- Open Settings
- Select Display
- Navigate to the very bottom and find title Multiple displays
- Click on Advanced display settings
- Choose the "display" for which you want to check settings.
- Click on Display adapter properties for Display 1
- Under Dedicated Video Memory you will see the VRAM your GPU has.
Another method is to check via Task Manager.
- Open Task Manager (You can do it quickly by pressing Ctrl+Shift+Escape or by typing the executable's name in the Start Menu
- If it opened in small view, press the More details button at the bottom of the opened window.
- Open the Performance tab
- At the bottom of the list on the left side, the GPUs are listed. Click onto the GPU you need to know the memory of.
- Look for Dedicated GPU memory statistic, which will show much Video Memory the card physically has and how much is being used at the moment.
For faster conversion:
- 1024 MB = 1 GB
- 2048 MB = 2 GB
- 3072 MB = 3 GB
- 4096 MB = 4 GB
- 6144 MB = 6 GB
- 8192 MB = 8 GB
- 16384 MB = 16 GB
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