RTX 3060 8GB for MiniMax H3: Speed, VRAM & Recommended Setup

8GB GDDR6 · bandwidth 240 GB/s · Ampere · sm_86 · estimated with 32GB RAM / fast-disk · updated 2026-09-28

Verdict: Recommended: 1152 × 640 · 15s, ~56 min 41 s per clip (VRAM peak ~7GB). See the table for higher tiers.

Size (16:9)	5s	8s	10s	15s
416 × 256 0.1MP · flicker-prone	2 min 56 s VRAM 7G	3 min 34 s VRAM 7G	4 min VRAM 7G	5 min 10 s VRAM 7G
864 × 480 0.4MP	6 min 15 s VRAM 7G	9 min 34 s VRAM 7G	12 min 27 s VRAM 7G	21 min 41 s VRAM 7G
960 × 544 0.5MP	7 min 37 s VRAM 7G	12 min 35 s VRAM 7G	16 min 52 s VRAM 7G	31 min 4 s VRAM 7G
1152 × 640 0.7MP	10 min 53 s VRAM 7G	20 min 6 s VRAM 7G	28 min 13 s VRAM 7G	56 min 41 s VRAM 7G
1344 × 768 1.0MP · official max	16 min 48 s VRAM 7G	34 min 6 s VRAM 7G	50 min 8 s VRAM 7G	✕ 1.8 h VRAM 7G
1376 × 768 1.0MP · above native	17 min 22 s VRAM 7G	35 min 28 s VRAM 7G	52 min 20 s VRAM 7G	✕ 1.9 h VRAM 7G
1920 × 1088 2.0MP · above native	52 min 24 s VRAM 7G	✕ 2.2 h VRAM 7G	✕ 3.5 h VRAM 7G	✕ 9.0 h VRAM 7G

Times are per whole clip (model load and text encoding included); the first run is slower due to kernel compilation. ⚠ = weight offloading / noticeably slower; ✕ = not recommended.

Reading the numbers

With the recommended combo, the green (no disk spill) ceiling is 1152 × 640 · 15s at ~56 min 41 s per clip. 5 high-end combinations are not recommended (pagefile pressure or >90 min per clip) — see the ✕ marks below. For comfortable 768p: add RAM to 64GB, or move to a card with 16GB+.

Recommended combo (Starter tier (8-10GB VRAM))

Main model: MiniMax-H3-FL2VA-Pruned-Q3_K_M.gguf（8.9GB）
Text encoder: qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors（15.69GB）
Acceleration: LightX2V Turbo 8-step v1.0 · ~2.08× sampling
Launch flags: --fast-disk --disable-mmap --lowvram

480-540p 5s; 4-8 steps; 3-10 min per clip; start at 736x416

With 16GB RAM a ≥48GB pagefile is mandatory; 15s clips are basically unusable

FAQ

Can the RTX 3060 8GB run MiniMax H3?

Yes. Estimated with 32GB RAM + fast-disk: 1152×640·15s at ~56 min 41 s per clip. Configs that exceed VRAM fall back to weight offloading (slower, but they still render).

How fast is H3 on the RTX 3060 8GB?

About 56 min 41 s per 1152×640·15s clip (including model load and encoding). Longer or denser clips scale quadratically in the attention term.

How much RAM do I need?

At least 32GB of system RAM recommended (minimum 16GB plus a 48GB pagefile). With 32GB, always enable --fast-disk or weights spill into the pagefile.

How can I make it faster?

Stack step distillation (e.g. LightX2V Turbo 8-step v1.0), enable SageAttention / Kitchen attention; for long clips try SLA / VSA sparse attention. All of it is switchable in step 2 of the calculator.

→ Run the numbers for your RAM and budget in the calculator (RTX 3060 8GB pre-filled)

Same tier: RTX 3050 8GB · RTX 3060 12GB · RTX 3060 Ti 8GB · RTX 3070 8GB · RTX 3070 16GB (modded) · RTX 4060 8GB · RTX 4060 Ti 8GB · RTX 5050 8GB