Can I Run DeepSeek V4 on Apple M2 Ultra?
Written by Jakub Rusinowski · Last updated July 12, 2026
No — DeepSeek V4-Flash at Q4 (experimental) needs 172.8 GB at 8K context (171.5 GB weights + 1.3 GB KV cache/overhead), and the Apple M2 Ultra's 144 GB usable memory leaves it ~28.8 GB short. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
Get a personalized upgrade path →
As an Amazon Associate we earn from qualifying purchases. Cloud GPU links are referral links — we may earn a commission at no extra cost to you.
Apple M2 Ultra Specs
| VRAM | 192 GB unified memory |
| Memory Bandwidth | 800 GB/s |
DeepSeek V4-Flash on the Apple M2 Ultra: VRAM by quantization
| Quant | VRAM needed | Fits 192 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 569.4 GB | ✗ No | — | — |
| Q8_0 | 303.1 GB | ✗ No | — | — |
| Q6_K | 234.3 GB | ✗ No | — | — |
| Q5_K_M | 202.7 GB | ✗ No | — | — |
| Q4_K_M | 172.8 GB | ✗ No | — | — |
| Q3_K_M | 122.4 GB | ✓ Yes | 256K | — |
| Q2_K | 94.7 GB | ✓ Yes | 512K | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 192 GB of unified memory. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4 (experimental) on the Apple M2 Ultra: 8K 172.8 GB ✗ · 32K 174.6 GB ✗ · 128K 181.5 GB ✗. Past 8K it no longer fits 192 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? DeepSeek V4-Flash on 128 GB of system RAM, CPU only: runs, but it is tight.
Why It Does Not Fit
Every DeepSeek V4 variant requires more VRAM than the Apple M2 Ultra provides (192 GB).
Nearest GPU That Fits
Apple M5 Ultra (512 GB VRAM).
DeepSeek V4 needs ~173 GB but this GPU has 192 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:
Affiliate links — we may earn a commission if you sign up, at no extra cost to you.
Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
FAQ
Will DeepSeek V4 run on the Apple M2 Ultra?
No — DeepSeek V4-Flash at Q4 (experimental) needs 172.8 GB at 8K context (171.5 GB weights + 1.3 GB KV cache/overhead), and the Apple M2 Ultra's 144 GB usable memory leaves it ~28.8 GB short. The cheapest card that runs it is the Apple M5 Ultra (512 GB).
What GPU should I get instead to run DeepSeek V4?
The Apple M5 Ultra (512 GB VRAM) is the cheapest upgrade that fits it.
Every DeepSeek V4 size on the Apple M2 Ultra
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| DeepSeek V4-Pro | 527.4 GB | Does not fit | — |
| DeepSeek V4-Flash | 172.8 GB | Runs at Q3_K_M | — |
DeepSeek V4 on Other GPUs
- DeepSeek V4 on Apple M4 Max
- DeepSeek V4 on Apple M1 Ultra
- DeepSeek V4 on Apple M5 Max
- DeepSeek V4 on NVIDIA DGX Spark
Popular Models on the Apple M2 Ultra
VRAM Tier
Troubleshooting
- Ollama: "model requires more system memory than is available"
- Which GGUF quant should I download? (Q4 vs Q5 vs Q8)
Buying Guide
← Can I Run It? | DeepSeek V4 Model Page | Apple M2 Ultra GPU Page | VRAM calculator | Check Your Hardware