Can I Run GLM-4.7 / GLM-Z1 on AMD Radeon RX 7900 XTX?
Written by Jakub Rusinowski · Last updated August 15, 2026
Yes, but it's tight — GLM-Z1 32B (Reasoning) at Q4_K_M needs 22 GB at 8K context (19.3 GB weights + 2.7 GB KV cache/overhead), leaving ~2 GB of the AMD Radeon RX 7900 XTX's 24 GB, at ~28 tok/s (est.), with room for up to 16K context.
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AMD Radeon RX 7900 XTX Specs
| VRAM | 24 GB |
| Memory Bandwidth | 960 GB/s |
GLM-Z1 32B (Reasoning) on the AMD Radeon RX 7900 XTX: VRAM by quantization
| Quant | VRAM needed | Fits 24 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 66.6 GB | ✗ No | — | — |
| Q8_0 | 36.6 GB | ✗ No | — | Build for this |
| Q6_K | 28.9 GB | ✗ No | — | — |
| Q5_K_M | 25.3 GB | ✗ No | — | — |
| Q4_K_M | 22 GB | ✓ Yes | 16K | Build for this |
| Q3_K_M | 16.3 GB | ✓ Yes | 32K | — |
| Q2_K | 13.2 GB | ✓ Yes | 32K | — |
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 24 GB. 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_K_M on the AMD Radeon RX 7900 XTX: 8K 22 GB · 32K 27.5 GB ✗ · 125K 49 GB ✗. Past 32K it no longer fits 24 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? GLM-Z1 32B (Reasoning) on 32 GB of system RAM, CPU only: runs comfortably.
GLM-4.7 / GLM-Z1 Sizes That Fit the AMD Radeon RX 7900 XTX (at 8K context)
| GLM-Z1 32B (Reasoning) | Q4_K_M · 22 GB at 8K context · ~28 tok/s (est.) |
| GLM-4.7-Flash 30B-A3B | Q4_K_M · 20.7 GB at 8K context · ~128 tok/s (est.) |
| GLM-4 9B | Q4_K_M · 7.4 GB at 8K context · ~76 tok/s (est.) |
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FAQ
Can I run GLM-4.7 / GLM-Z1 on the AMD Radeon RX 7900 XTX?
Yes, but it's tight — GLM-Z1 32B (Reasoning) at Q4_K_M needs 22 GB at 8K context (19.3 GB weights + 2.7 GB KV cache/overhead), leaving ~2 GB of the AMD Radeon RX 7900 XTX's 24 GB, at ~28 tok/s (est.), with room for up to 16K context.
What's the best GLM-4.7 / GLM-Z1 size for the AMD Radeon RX 7900 XTX?
GLM-Z1 32B (Reasoning) at Q4_K_M quantization needs 22 GB at 8K context (19.3 GB weights + 2.7 GB KV cache/overhead), estimated ~28 tokens/sec, up to 16K context.
Every GLM-4.7 / GLM-Z1 size on the AMD Radeon RX 7900 XTX
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| GLM-Z1 32B (Reasoning) | 22 GB | Runs | ~28 tok/s |
| GLM-4.7-Flash 30B-A3B | 20.7 GB | Runs | ~128 tok/s |
| GLM-4 9B | 7.4 GB | Runs | ~76 tok/s |
GLM-4.7 / GLM-Z1 on Other GPUs
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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
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