# Hardware Recommendations for Immich

> Guidance for upgrading hardware to run Immich smoothly, especially for ML-heavy workloads (face detection, smart search, OCR).

## The Bottleneck: Immich ML

Immich's background ML jobs (smart search, face detection, facial recognition, OCR, thumbnail generation) are **CPU-intensive** on low-power hardware. Without a GPU, these jobs run entirely on the CPU and can saturate available cores for hours or days after a large import.

### What Each Job Consumes

| Job | CPU Usage | GPU-Accelerated? |
|-----|-----------|------------------|
| `metadataExtraction` | Light | No |
| `thumbnailGeneration` | Medium | Yes (ffmpeg GPU encode) |
| `smartSearch` (CLIP) | **Heavy** — 5-10 sec/image on CPU | Yes (CUDA) |
| `faceDetection` | **Heavy** | Yes (CUDA) |
| `facialRecognition` | **Heavy** | Yes (CUDA) |
| `OCR` | **Heavy** | Partial |
| `videoConversion` | **Very Heavy** — 3-5 min/video on CPU | Yes (NVENC) |

## Hardware Tiers

### 🟢 Tier 1: Low-Power Mini PC (HP EliteDesk, Dell OptiPlex Micro, Lenovo Tiny)

**Example:** HP EliteDesk 800 G2 DM (i5-6500T, 7GB RAM, no GPU)

| Pro | Con |
|-----|-----|
| ~15W idle, ~$65/yr power | ML jobs take **days** on CPU |
| Silent, tiny, cheap | RAM limited (often 7-16 GB, non-upgradable) |
| Great for basic serving | No PCIe slot — **cannot add a GPU** |

**Best for:** Light usage (<5K photos), no ML features needed. Accept background jobs running for days.

### 🟡 Tier 2: SFF Office PC (Dell OptiPlex SFF, HP EliteDesk SFF)

**Example:** Dell OptiPlex 3420 SFF (i7-6700, 64GB RAM)

| Pro | Con |
|-----|-----|
| 64GB RAM support | Only fits **low-profile GPUs** (rare, pricier) |
| Slightly better CPU | Still limited cooling |
| Cheap used ($100-150) | GPU search is a pain |

**GPU options (low-profile, 75W, no extra power cable):**
- GTX 1650 LP (~$120 used) — best performance for ML
- GT 1030 (~$50) — **avoid**, no CUDA, useless for ML
- RTX 3050 LP (~$180) — very rare in LP form

### 🟢 Tier 3: Mini Tower Office PC (Dell OptiPlex MT, Precision Tower)

**Example:** Dell OptiPlex 7050 MT / Precision Tower 3420

| Pro | Con |
|-----|-----|
| Full PCIe slot — fits any GPU | Larger case |
| Often has SSD bay + HDD bay | Older CPUs (6th-7th gen) |
| Cheap used ($100-200) | Usually 16GB RAM (upgradable) |

**Best GPU for the money — GTX 1050 Ti 4GB (~$60-80 used):**
- 75W — no extra power cables, runs off PCIe slot
- 768 CUDA cores — good for YOLO and Immich ML
- Drops ML job time from **days to hours**
- ~$35/yr extra power over a mini PC

**GPU upgrade paths (all 75W, no cables needed):**

| GPU | Used Price | ML Speed vs 1050 Ti | VRAM | Verdict |
|-----|-----------|---------------------|------|---------|
| **GTX 1050 Ti** 🏆 | **$60-80** | 1x (baseline) | 4GB | Best budget pick |
| GTX 1650 | $100 | ~1.2x | 4GB | Slightly faster, pricier |
| **RTX 3050 6GB** 🏆 | **$150** | **~3x** (Tensor Cores) | **6GB** | Best value — ~3x faster for ~2x price |

### 🟣 Tier 4: Modern Desktop (Dell XPS, custom build)

**Example:** Dell XPS 8950 (i5-12500K, 32GB DDR5, PCIe 4.0 x16)

| Pro | Con |
|-----|-----|
| **10 cores** (6P+4E) — 3x CPU perf vs i7-6700 | More expensive |
| DDR5 RAM — much faster memory bandwidth | Larger power draw at idle (~40W) |
| PCIe 4.0 slot — no GPU bottleneck | |
| Good for both serving AND processing | |

**With a GPU, this tier finishes Immich ML queues in ~30-60 minutes vs days on a mini PC.**

## Power Consumption Comparison (24/7, $0.13/kWh)

| Setup | Idle | Under Load | Yearly Cost |
|-------|------|-----------|-------------|
| Mini PC (no GPU) | ~15W | ~45W | **~$65** |
| SFF / MT + GTX 1050 Ti | ~40W | ~140W | **~$100** |
| SFF / MT + GTX 1650 | ~40W | ~140W | **~$100** |
| SFF / MT + RTX 3050 | ~40W | ~145W | **~$100** |
| Modern desktop + GPU | ~50W | ~250W | **~$140** |

## Quick Recommendations

**"I want it cheap and don't mind waiting"** → HP mini, no changes
**"I want it faster, budget $200"** → Used OptiPlex MT + GTX 1050 Ti ($100 + $60)
**"I want it fast, budget $400"** → OptiPlex MT + RTX 3050 6GB + SSD
**"I want it blazing"** → Modern desktop + RTX 3050/4060
