GPU Infrastructure for Video Processing
GPU infrastructure is the biggest cost driver and architectural decision in video processing. This guide covers build vs. rent, cloud vs. on-premise, and how to choose the right GPUs.
GPU Options for Video AI
Modern video AI requires NVIDIA GPUs with sufficient VRAM:
| GPU | VRAM | Best For | Cloud Hourly |
|---|---|---|---|
| T4 | 16 GB | Development, light inference | ~$0.50 |
| A10G | 24 GB | Production inference | ~$1.00 |
| L4 | 24 GB | Efficient inference (newer) | ~$0.80 |
| L40S | 48 GB | High-res, complex models | ~$2.50 |
| A100 | 40/80 GB | Training, large batches | ~$3.00 |
| H100 | 80 GB | Cutting-edge performance | ~$4.00 |
VRAM Requirements
Video processing needs more VRAM than you'd expect:
- 720p video: 8-12 GB
- 1080p video: 12-16 GB
- 4K video: 24-32 GB
- 8K video: 48+ GB (tiled processing)
Add overhead for model weights (2-8 GB) and batching.
Cloud GPU Options
Major Cloud Providers
AWS
- G4dn (T4), G5 (A10G), P4d (A100), P5 (H100)
- Deep integration with S3, SQS
- Spot instances for 60-90% savings
GCP
- T4, L4, A100, H100
- Preemptible VMs for savings
- TPU alternative for some workloads
Azure
- NC series (T4), ND series (A100)
- Spot VMs for savings
- Strong enterprise relationships
Serverless GPU
Pay per second of actual compute:
- Modal: Python-native, fast cold starts
- RunPod: Container-based, flexible
- Banana: Simple deployment
- Replicate: Model-as-a-service
Serverless eliminates idle costs but adds cold start latency (5-30 seconds).
On-Premise Considerations
When On-Premise Makes Sense
- High utilization: >70% GPU usage
- Data sovereignty: Legal requirement for data location
- Predictable workload: Consistent, non-bursty demand
- GPU expertise: Team can manage infrastructure
Cost Comparison
A10G on-premise:
Hardware: $10,000
3-year TCO: ~$15,000 (with power, maintenance)
Per-hour cost at 70% utilization: $0.81/hr
A10G in cloud:
Per-hour cost: $1.00/hr
Break-even: ~15,000 hours (2 years at 70%)
Hidden Costs
- Power and cooling
- Rack space
- Network infrastructure
- Maintenance and replacement
- Staff time
The Hybrid Approach
On-premise for baseline, cloud for bursts:
- Size on-premise for 50-60% of peak
- Burst to cloud for spikes
- Best of both worlds
Right-Sizing Your Infrastructure
Profiling Your Workload
Before choosing GPUs, understand your workload:
- Resolution distribution (720p, 1080p, 4K)
- Processing type (upscale, restore, denoise)
- Batch size (one video or many)
- Latency requirements (minutes OK or seconds?)
Benchmarking
Test on representative workload:
GPU | 720p/s | 1080p/s | 4K/s | $/1000 frames
T4 | 12 | 5 | 1.5 | $0.04
A10G | 30 | 15 | 5 | $0.03
L40S | 50 | 25 | 10 | $0.05
Common Mistakes
- Over-provisioning: A100 when A10G suffices
- Under-provisioning: T4 for 4K workloads
- Ignoring VRAM: Running out mid-job
- Ignoring cold start: User-facing latency suffers
BetterVideo's Infrastructure
We run on Modal's serverless GPU infrastructure:
Why Serverless
- Scale to zero: No idle costs
- Instant scaling: Handle bursts without provisioning
- No ops: No GPU maintenance
- Latest hardware: Access to A10G, L40S without purchase
Our GPU Selection
- A10G: Standard processing (up to 4K)
- L40S: High-resolution, complex models
Cold Start Optimization
- Models cached in container image
- Warm pool during peak hours
- Cold start under 5 seconds
You get GPU power without GPU infrastructure complexity.
Frequently Asked Questions
A10G (24GB) for most production inference. L40S (48GB) for 4K+ or complex models. T4 for development only.
Cloud unless you have >70% utilization, strict data residency requirements, or GPU operations expertise. Hybrid for baseline + burst.
Target >70% utilization, use spot/preemptible instances for batch work, consider serverless GPU for variable workloads, right-size your GPU selection.
Pay-per-second GPU compute (Modal, RunPod). No idle costs, but 5-30 second cold start. Great for variable workloads.
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