Written by Jakub Rusinowski · Last updated September 11, 2026
No — GLM-5.3-Flash doesn't fit the NVIDIA A100 80GB's 80 GB; you're short by ~28 GB even at Q2_K. The cheapest card that runs it is the Apple M3 Ultra (512 GB).
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| VRAM | 80 GB |
| Memory Bandwidth | 1935 GB/s |
| Quant | VRAM needed | Fits 80 GB? | Max context |
|---|---|---|---|
| F16 | 642.8 GB | ✗ No | — |
| Q8_0 | 342.8 GB | ✗ No | — |
| Q6_K | 265.2 GB | ✗ No | — |
| Q5_K_M | 229.6 GB | ✗ No | — |
| Q4_K_M | 196 GB | ✗ No | — |
| Q3_K_M | 139.2 GB | ✗ No | — |
| Q2_K | 108 GB | ✗ No | — |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 80 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Every GLM-5.3-Flash variant requires more VRAM than the NVIDIA A100 80GB provides (80 GB).
Apple M3 Ultra (512 GB VRAM).
GLM-5.3-Flash needs ~193 GB but this GPU has 80 GB. Rent a 8× H100 (640 GB)-class GPU by the hour instead of buying one:
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No — GLM-5.3-Flash doesn't fit the NVIDIA A100 80GB's 80 GB; you're short by ~28 GB even at Q2_K. The cheapest card that runs it is the Apple M3 Ultra (512 GB).
The Apple M3 Ultra (512 GB VRAM) is the cheapest upgrade that fits it.
← Can I Run It? | GLM-5.3-Flash Model Page | NVIDIA A100 80GB GPU Page | Check Your Hardware