Hardware

Radeon RX 6800

Radeon RX 6800 has 16 GB GDDR6 and 512 GB/s. See which open models fit, at which quant, and roughly how fast. Figures below use the default memory (16 GB), 32 GB system RAM, and DDR5-5600 for anything that spills. Updated 2026-10-24.

Memory16 GB GDDR6

Bandwidth512 GB/s

Kindgpu

Year2020

16GB GDDR6, 256-bit, 512 GB/s. Source.

RSS for new models on this device

Models that fit

Model	Verdict	Quant	Context	tok/s
Qwen3.8 27B 27.3B	Tight fit	UD-IQ4_XS	8K	19–26
Devstral Small 2 24B Instruct 2512 23.6B	Tight fit	Q4_K_M	4K	19–26
Mistral Small 3.2 24B Instruct 2506 23.6B	Tight fit	Q4_K_M	4K	19–26
Magistral Small 2509 23.6B	Tight fit	Q4_K_M	4K	19–26
Swift Qwen3.8 27B 27.3B	Tight fit	Q3_K_L	8K	19–26
gpt oss 20b 20.9B	Tight fit	UD-Q8_K_XL	8K	70–95
gemma 3 27b it 27.0B	Tight fit	UD-Q3_K_XL	8K	16–21
medgemma 27b text it 27.0B	Tight fit	UD-Q3_K_XL	8K	16–21
Qwen3.6 27B 26.9B	Tight fit	UD-Q3_K_XL	4K	19–26
Qwen3.5 27B 26.9B	Tight fit	UD-Q3_K_XL	4K	19–26
GLM 4.7 Flash REAP 23B A3B 23.0B	Tight fit	UD-Q4_K_XL	8K	122–167
GLM 4 32B 0414 32.6B	Tight fit	Q3_K_S	8K	19–26
NousResearch Hermes 4 14B 14.8B	Runs	Q5_K_M	8K	24–32
Qwen2.5 14B Instruct 14.8B	Runs	Q5_K_M	8K	23–32
DeepSeek R1 Distill Qwen 14B 14.8B	Tight fit	Q6_K	8K	21–28
Qwen2.5 Coder 14B Instruct 128K 14.8B	Tight fit	Q6_K	8K	21–28
Qwen3 14B 14.8B	Tight fit	UD-Q6_K_XL	8K	19–26
phi 4 14.7B	Tight fit	Q6_K	8K	21–28
gemma 4 26B A4B it 25.2B	Tight fit	UD-IQ4_XS	8K	68–92
gemma 4 31B it 30.7B	Tight fit	Q3_K_S	4K	16–22
Qwen3 32B 32.8B	Tight fit	UD-IQ3_XXS	4K	20–27
Qwen3 VL 32B Instruct 32.8B	Tight fit	UD-IQ3_XXS	4K	20–27
bottlecapai ThinkingCap gemma 4 26B A4B it 25.2B	Tight fit	IQ4_XS	8K	66–90
GLM 4.7 Flash 29.9B	Tight fit	UD-Q3_K_XL	8K	84–114
Qwen3.5 35B A3B 34.7B	Tight fit	UD-IQ3_S	8K	210–286
Qwen3.6 35B A3B 34.7B	Tight fit	UD-IQ3_S	8K	208–284
Ministral 3 14B Instruct 2512 13.5B	Tight fit	UD-Q6_K_XL	8K	21–29
Ministral 3 14B Reasoning 2512 13.5B	Tight fit	UD-Q6_K_XL	8K	21–29
Qwen3 Coder 30B A3B Instruct 30.5B	Tight fit	UD-Q3_K_XL	8K	130–178
Qwen3 30B A3B Instruct 2507 30.5B	Tight fit	UD-Q3_K_XL	8K	130–177
Qwen3 VL 30B A3B Instruct 30.5B	Tight fit	UD-Q3_K_XL	8K	130–177
Qwen3 30B A3B Thinking 2507 30.5B	Tight fit	UD-Q3_K_XL	8K	130–177
Qwen2.5 Coder 32B Instruct 32.8B	Tight fit	IQ3_XXS	8K	19–26
gemma 4 12b it 11.9B	Tight fit	UD-Q8_K_XL	8K	17–23
Tiel Coder 35B A3B 34.7B	Tight fit	UD-IQ3_XXS	8K	215–293
Qwen3.6 14B A3B FableVibes 13.8B	Tight fit	Q8_0	8K	84–114
LFM2.5 24B A2B 24.0B	Runs	UD-Q3_K_XL	8K	178–242
Kwaipilot KAT Coder V2.5 Dev 34.7B	Tight fit	IQ3_XXS	4K	101–138
Qwen2.5 32B Instruct 32.8B	Runs	IQ2_S	8K	22–31
GLM 4.6V Flash 9.4B	Runs	UD-Q8_K_XL	8K	23–31

105 more models in the catalog do not fit this default profile, or ranked below the first 40 that do.

Example: Tight fit fully on your Radeon RX 6800 at UD-IQ4_XS, 8K context, about 19–26 tok/s. Weights 13.3 GB plus 0.57 GB of KV cache — 14.3 GB of 14.7 GB usable. Weights shown in the verdict use GiB (the same 1024³ counting as GPU memory).