Can AMD Radeon RX 7900 XTX run Mochi 1?
10B parameter Video Gen model on 24GB GDDR6
Yes — runs at 8-bit quantization
~0.2-0.3 clips/min
SpeedFast inference, near-native speed
QualityNear-lossless — virtually identical to FP16
Mochi 1 works best with NVIDIA CUDA. Your AMD GPU may have limited or no support.
VRAM Requirements
Mochi 1 is a 10B parameter model. At full precision (FP16), it requires 30GB of VRAM. Your AMD Radeon RX 7900 XTX has 24GB, so you'll need to quantize it to 8-bit (Q8) to fit.
FP16 (Full Precision)30GB (need 6GB more)
Maximum quality, no quantization
Q8 (8-bit)16GB (8GB free)
Near-lossless, ~50% size reduction
Q4 (4-bit)10GB (14GB free)
Good quality, ~75% size reduction
Your GPU VRAM: 24GB GDDR6 at 960 GB/s bandwidth
Recommended system RAM: 48GB DDR5 (2x GPU VRAM minimum for model overflow)
Recommended system RAM: 48GB DDR5 (2x GPU VRAM minimum for model overflow)
What This Means in Practice
Mochi 1 at 8-bit precision on AMD Radeon RX 7900 XTX generates video clips with near-identical quality to full precision. Generation times are similar — video gen is bottlenecked by compute more than memory at this precision. A solid setup for local video generation.
AMD Radeon RX 7900 XTX Specs
VRAM24GB GDDR6
Memory Bandwidth960 GB/s
TDP355W
CUDA CoresN/A
Street Price~$850
AI Rating5/10
Other GPUs That Run Mochi 1
Other Video Gen Models on AMD Radeon RX 7900 XTX
About Mochi 1
Genmo's text-to-video model known for smooth, natural motion. Generates short clips with good temporal consistency. Requires 16GB+ VRAM for usable quality.
Category: Video Gen · Parameters: 10B · CUDA required: Recommended