Quick Answer
A local AI and Stable Diffusion rig in Paarl is decided by GPU VRAM. The RTX 4060 Ti 16 GB (~R10,500) runs SDXL at roughly 2 iterations/sec and Flux.1 without out-of-memory errors; an RTX 4070 Ti Super 16 GB or RTX 4090 24 GB is the step up for speed. Pair the GPU with a Ryzen 5 7600 and 32 GB DDR5. VRAM, not CPU speed, sets the model size you can run.
Why VRAM decides the rig
Stable Diffusion loads the model into GPU memory, so VRAM caps your workload:
- 8 GB: SD 1.5 only, SDXL struggles
- 12 GB: SDXL comfortable, Flux tight
- 16 GB (RTX 4060 Ti 16 GB): SDXL + Flux + ComfyUI batches - the value pick
- 24 GB (RTX 4090): fastest single-card option
SDXL runs about 2 it/s at 1024px on the 16 GB card, so a 25-step image takes roughly 12-15 seconds.
The supporting build and Winelands delivery
- CPU: Ryzen 5 7600 (~R4,200) - feeds the GPU
- RAM: 32 GB DDR5-6000 (~R2,000)
- Storage: 1 TB NVMe (~R1,200) - checkpoints are 2-7 GB each
- PSU: 650-750 W 80+ Gold for stable renders
Evetech ships to Paarl in the Cape Winelands in 2-3 business days; inspect and power-test the GPU before signing.
FAQ
What's the best value GPU for Stable Diffusion in SA?
The RTX 4060 Ti 16 GB (~R10,500) - its 16 GB VRAM runs SDXL and Flux comfortably at about 2 it/s, where cheaper 8 GB cards hit out-of-memory errors. It's the sweet spot for serious hobbyist local-AI work.
Can this rig run local LLMs too?
Yes. The same 16 GB VRAM card runs quantised 7B-13B language models in Ollama or LM Studio alongside Stable Diffusion, making it a flexible all-round local-AI machine.
Does Evetech deliver to Paarl?
Yes, Evetech ships to Paarl in the Cape Winelands in 2-3 business days. Power-test the GPU and confirm it's detected before signing.
and fp16 in ComfyUI or Automatic1111 - it roughly halves VRAM use, letting a 16 GB RTX 4060 Ti run Flux and larger SDXL batches that would otherwise need a 24 GB card.