Can I Run GLM-4.7 / GLM-Z1 on AMD Radeon RX 7900 XT?
Written by Jakub Rusinowski · Last updated August 15, 2026
Yes, comfortably — GLM-4 9B at Q4_K_M needs 7.4 GB at 8K context (5.4 GB weights + 2 GB KV cache/overhead), leaving ~12.6 GB of the AMD Radeon RX 7900 XT's 20 GB, at ~66 tok/s (est.), with room for up to 64K context.
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AMD Radeon RX 7900 XT Specs
| VRAM | 20 GB |
| Memory Bandwidth | 800 GB/s |
GLM-4 9B on the AMD Radeon RX 7900 XT: VRAM by quantization
| Quant | VRAM needed | Fits 20 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 20 GB | ✗ No | — | — |
| Q8_0 | 11.6 GB | ✓ Yes | 32K | — |
| Q6_K | 9.4 GB | ✓ Yes | 64K | — |
| Q5_K_M | 8.4 GB | ✓ Yes | 64K | — |
| Q4_K_M | 7.4 GB | ✓ Yes | 64K | — |
| Q3_K_M | 5.8 GB | ✓ Yes | 64K | — |
| Q2_K | 5 GB | ✓ Yes | 64K | — |
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 20 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 XT: 8K 7.4 GB · 32K 11.1 GB · 125K 25.1 GB ✗. Past 125K it no longer fits 20 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? GLM-4 9B on 8 GB of system RAM, CPU only: runs, but it is tight.
GLM-4.7 / GLM-Z1 Sizes That Fit the AMD Radeon RX 7900 XT (at 8K context)
| GLM-4 9B | Q4_K_M · 7.4 GB at 8K context · ~66 tok/s (est.) |
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FAQ
Is the AMD Radeon RX 7900 XT enough to run GLM-4.7 / GLM-Z1 locally?
Yes, comfortably — GLM-4 9B at Q4_K_M needs 7.4 GB at 8K context (5.4 GB weights + 2 GB KV cache/overhead), leaving ~12.6 GB of the AMD Radeon RX 7900 XT's 20 GB, at ~66 tok/s (est.), with room for up to 64K context.
What's the best GLM-4.7 / GLM-Z1 size for the AMD Radeon RX 7900 XT?
GLM-4 9B at Q4_K_M quantization needs 7.4 GB at 8K context (5.4 GB weights + 2 GB KV cache/overhead), estimated ~66 tokens/sec, up to 64K context.
Every GLM-4.7 / GLM-Z1 size on the AMD Radeon RX 7900 XT
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| GLM-Z1 32B (Reasoning) | 22 GB | Runs at Q3_K_M | — |
| GLM-4.7-Flash 30B-A3B | 20.7 GB | Runs at Q3_K_M | — |
| GLM-4 9B | 7.4 GB | Runs | ~66 tok/s |
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