Decision Tools
VRAM Calculator
Find out how much GPU memory you need to run any open-weight model, and which models fit your hardware.
Model size
7B
1B999B
= 7B parameters
Quantization
GPU budget
24 GB
4 GB192 GB
VRAM required
4 GB
7B @ INT4 / Q4
GPU budget
24 GB
available
Headroom
+20 GB
fits comfortably
✓
Fits on your GPU with 20 GB to spare
7B params × 0.5 bytes × 1.18 overhead = 4 GB
Open-weight models that fit (0)
No open-weight models fit within 24 GB at INT4 / Q4.