AMD · Vega 20 · 32 GB · Qwen3.8 27B · Q4_K_M: ~31 tok/s
AMD Radeon Instinct MI50 32GB
32 GB of HBM2 at a terabyte per second. The 32 GB version has become scarce and sells for several times the 16 GB card; passive, 300 W and retired from official ROCm support, so expect some driver archaeology, but a 32B model at Q4 runs.
Lowest price right now
$600
eBay · free shipping · $18 per GB · observed 2026-10-15 11:51 UTC
Buy the cheapest on eBay, $600
free shipping · Used · detsin 18 · 100.0%
Where to buy
| Vendor | Price | Condition | Observed | |
|---|---|---|---|---|
| eBay cheapest active listing |
$600 free shipping |
new and used | 2026-10-15 11:51 UTC | Go to eBay |
On eBay now
3 listings passed our filters at the last check. Cheapest delivered first. Seller reputation is feedback count and positive rate.
-
$600free shipping -
$647.18$597.18 + $50 shipping -
$647.18$597.18 + $50 shipping
What it runs
For each model, grouped by vendor with the newest first: the largest quant that fits with 8K of context and the estimated speed for one user. The model you picked on the ladder is highlighted. Estimates from the spec sheet, not measurements: see how we estimate.
| Model | Quant | Needs at 8K | Fit | Max context | Decode tok/s | Prefill tok/s |
|---|---|---|---|---|---|---|
| DeepSeek | ||||||
| DeepSeek V4.1 Flash 552B-A16B Sep 2026 | Q4_K_M | 338 GB | does not fit | |||
| DeepSeek V4 Flash 284B-A13B Jul 2026 | Q4_K_M | 175 GB | does not fit | |||
| DeepSeek V3.1 671B-A37B Aug 2025 | Q4_K_M | 411 GB | does not fit | |||
| Gemma | ||||||
| Gemma 4 12B May 2026 | Q8_0 | 14 GB | fits | 128K+ | ~40 | ~280 |
| Gemma 4 31B Mar 2026 | Q6_K | 27 GB | fits | 63K | ~20 | ~110 |
| Gemma 4 26B-A4B Mar 2026 | Q8_0 | 28 GB | fits | 128K+ | ~130 | ~870 |
| Gemma 3 27B Mar 2025 | Q8_0 | 31 GB | fits | 17K | ~18 | ~120 |
| GLM | ||||||
| GLM-5.3 753B-A40B Aug 2026 | Q4_K_M | 462 GB | does not fit | |||
| GLM-5.3 Flash 320B-A18B Aug 2026 | Q4_K_M | 197 GB | does not fit | |||
| GLM-4.6 355B-A32B Sep 2025 | Q4_K_M | 221 GB | does not fit | |||
| GLM-4.5 Air 106B-A12B Jul 2025 | Q4_K_M | 68 GB | does not fit | |||
| gpt-oss | ||||||
| gpt-oss-120b Aug 2025 | Q4_K_M | 73 GB | does not fit | |||
| gpt-oss-20b Aug 2025 | Q8_0 | 24 GB | fits | 128K+ | ~130 | ~920 |
| Llama | ||||||
| Llama 4 Scout 109B-A17B Apr 2025 | Q4_K_M | 70 GB | does not fit | |||
| Llama 3.3 70B Dec 2024 | IQ2_M | 28 GB | fits | 19K | ~21 | ~47 |
| Llama 3.1 8B Jul 2024 | Q8_0 | 11 GB | fits | 128K+ | ~60 | ~410 |
| MiMo | ||||||
| MiMo V2.6 Pro 1.02T-A42B Sep 2026 | Q4_K_M | 624 GB | does not fit | |||
| MiMo V2.6 Flash 309B-A15B Sep 2026 | Q4_K_M | 190 GB | does not fit | |||
| Mistral | ||||||
| Mistral Medium 3.5 128B Mar 2026 | Q4_K_M | 83 GB | does not fit | |||
| Mistral Small 4 119B-A6.5B Mar 2026 | Q4_K_M | 79 GB | does not fit | |||
| Mistral Small 3.2 24B Jun 2025 | Q8_0 | 28 GB | fits | 30K | ~20 | ~140 |
| Qwen | ||||||
| Qwen3.8 Flash-Next 125B-A6B Aug 2026 | Q4_K_M | 78 GB | does not fit | |||
| Qwen3.8 27B Aug 2026 (your pick) | Q8_0 | 31 GB | fits | 28K | ~18 | ~120 |
| Qwen3.6 27B Apr 2026 | Q8_0 | 31 GB | fits | 28K | ~18 | ~120 |
| Qwen3.6 35B-A3B Apr 2026 | Q6_K | 30 GB | fits | 85K | ~210 | ~1,100 |
| Qwen3 Coder 480B-A35B Jul 2025 | Q4_K_M | 296 GB | does not fit | |||
| Qwen3 235B-A22B Jul 2025 | Q4_K_M | 146 GB | does not fit | |||
| Qwen3 32B Apr 2025 | Q6_K | 31 GB | fits | 13K | ~19 | ~100 |
Specifications
- Memory
- 32 GB HBM2
- Memory bandwidth
- 1,024 GB/s
- Bus width
- 4096-bit
- Shader cores
- 3,840
- Tensor cores
- 0
- FP32
- 13.3 TFLOPS
- FP16 (dense)
- 26 TFLOPS
- Power
- 300 W
- Form factor
- Dual slot, passive, needs a fan
- Interface
- PCIe 4.0 x16
- Architecture
- Vega 20
- Launched
- 2018
Source: manufacturer specifications.