Can NVIDIA Tesla P40 run AlphaFold 2?

93M parameter Scientific Computing model on 24GB GDDR5X

Yes — runs at full precision
SpeedFastest possible inference
QualityMaximum quality, no degradation

VRAM Requirements

AlphaFold 2 is a 93M parameter model. At full precision (FP16), it requires 16GB of VRAM. Your NVIDIA Tesla P40 has 24GB — enough to run it without any quantization.

FP16 (Full Precision)16GB (8GB free)

Maximum quality, no quantization

Q8 (8-bit)12GB (12GB free)

Near-lossless, ~50% size reduction

Q4 (4-bit)8GB (16GB free)

Good quality, ~75% size reduction

Your GPU VRAM: 24GB GDDR5X at 346 GB/s bandwidth
Recommended system RAM: 48GB DDR5 (2x GPU VRAM minimum for model overflow)

What This Means in Practice

NVIDIA Tesla P40's 24GB VRAM comfortably runs AlphaFold 2 for most proteins, including long sequences (1000+ residues) and multimer predictions. You can process multiple sequence alignments locally without worrying about VRAM limits. This is a professional-grade setup for structural biology research.

How to Set It Up

Step 1: Set up Python environment

conda create -n scicomp python=3.10 && conda activate scicomp

A clean Conda environment avoids dependency conflicts. Python 3.10 is recommended for most scientific computing tools.

Step 2: Install AlphaFold

pip install alphafold

AlphaFold requires CUDA-compatible GPU drivers and ~2.5TB of genetic database files for MSA. Consider ColabFold (pip install colabfold) for a lighter setup that uses MMseqs2 instead of full databases.

Step 3: Run a prediction

colabfold_batch input.fasta output_dir/

ColabFold is the fastest way to get started. For full AlphaFold, use the Docker image from deepmind/alphafold on GitHub.

Step 4: Verify GPU is being used

nvidia-smi

Check that VRAM usage increases when the model loads. You should see ~16GB used.

NVIDIA Tesla P40 Specs

VRAM24GB GDDR5X
Memory Bandwidth346 GB/s
TDP250W
CUDA Cores3,840
Street Price~$300
AI Rating5/10

About AlphaFold 2

DeepMind's protein structure prediction model. VRAM usage scales with protein sequence length — short proteins (<500 residues) fit on 8GB, medium sequences need 12GB, and multimers or long proteins (>1000 residues) need 16GB+. The model weights are small (~200MB) but attention on MSA and pair representations dominates memory.

Category: Scientific Computing · Parameters: 93M · CUDA required: Recommended