Best Cloud Rendering for Architecture: SaaS vs IaaS Decision Framework
The entire “which render farm should I use?” question comes down to one thing: does your software need a live desktop, or can it send a file? IaaS farms (iRender, Xesktop) give you a remote desktop with a dedicated GPU — required for real-time apps like Lumion, Enscape, Twinmotion, D5 Render, and V-Ray GPU Interactive. SaaS farms (GarageFarm, RebusFarm, Fox Renderfarm) let you upload a scene file and the farm distributes it across many CPU cores automatically — ideal for Corona, V-Ray CPU, and other offline renderers. Pick the wrong type and your software literally won’t run.
| I need to… | Farm Type | Best Option | Billing |
|---|---|---|---|
| Run Lumion / Enscape / D5 / Twinmotion | IaaS | iRender ⭐ (~$8.20/hr) | Per hour |
| Use V-Ray GPU or V-Ray IPR preview | IaaS | iRender ⭐ | Per hour |
| Batch render Corona or V-Ray CPU | SaaS | GarageFarm ⭐ (~$2–5/img) | Per render |
| Simple one-click submission | SaaS | RebusFarm (~$3–6/img) | Per render |
| Use both GPU real-time AND CPU batch | Both | iRender + GarageFarm | Mixed |
What Exactly Happens on Each Type of Farm?
IaaS (iRender, Xesktop): You connect to a Windows computer via remote desktop. It has an RTX 4090 GPU, 256 GB RAM, and fast storage. You install your software, open your project, and work exactly like you would on a local PC — just faster. Billing runs per hour, and the timer doesn’t stop until you disconnect manually.
SaaS (GarageFarm, RebusFarm): You install a plugin in 3ds Max or SketchUp, select your scene, and click submit. The farm automatically packages your scene, distributes it across dozens of machines, renders all frames, and sends results back. No server management, no desktop, no billing timer. You pay per render.
What Are the Trade-offs of Each?
IaaS trade-off: flexibility but billing risk. You can run any software — but if you forget to disconnect overnight, you’ll waste roughly ~$65. Setup takes 15–20 minutes the first time. You manage everything yourself.
SaaS trade-off: simplicity but limited compatibility. Zero billing risk (per-render pricing), but you can only use renderers they support — no Lumion, no Enscape, no D5. If a render fails, you may pay for the failed attempt too.
See more: Need IaaS? Start with iRender’s RTX 4090 → Need IaaS? Start with iRender’s RTX 4090 → View GPU servers & pricing
Frequently Asked Questions
- What’s the simplest way to decide between SaaS and IaaS?
Ask one question: does your renderer need a live desktop? If yes (Lumion, Enscape, Twinmotion, D5, V-Ray GPU), you need IaaS. If no (Corona, V-Ray CPU), SaaS is faster and simpler. If you use both types, get accounts on both — iRender for GPU, GarageFarm for CPU.
2. Is SaaS or IaaS cheaper for architecture rendering?
SaaS is usually cheaper per image for CPU batch work ($2–5/image vs $3–6 on IaaS for single-server CPU). IaaS is cheaper per image for GPU rendering ($1–3/image on RTX 4090). The cheapest option depends on your renderer, not the farm model. For mixed workflows, using both saves 20–30% vs forcing everything through one type.
3. Can I use a SaaS farm for Lumion or Enscape?
No. Lumion and Enscape are real-time GPU applications that require a live interactive desktop. SaaS farms distribute scenes across nodes automatically — they can’t provide the dedicated GPU session these tools need. Only IaaS farms (iRender ~$8.20/hr, Xesktop ~$10–14/hr) support them.
Related post: Best Cloud Rendering for SketchUp Free Users: Zero-Cost Pipeline on Cloud
