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AMD
Operating mode
Use this to bias workload recommendations toward responsiveness, background autonomy, lighter serving, or multi-GPU scale-out.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
The RX 6800 16GB is a high-end RDNA 2 card with 16 GB of GDDR6 VRAM, making it competitive with NVIDIA cards that cost significantly more at launch. However, RDNA 2 consumer GPUs have no official ROCm support, so AI inference relies on Vulkan backends. The 16 GB capacity enables 13B models at FP16 and 34B models at Q4, which is genuinely useful for local LLM work — if you can tolerate the software limitations.
Beyond LLMs
What AI tasks this GPU can handle — from text generation to image and video creation.
| Capability | Status | Representative Model | Detail |
|---|---|---|---|
| LLM Chat (7B) | Runs natively | Llama 3.1 8B Q4 | — |
| LLM Coding (30B) | Won’t fit | Qwen 3 30B Q4 | — |
| LLM Large (70B) | Won’t fit | Llama 3.1 70B Q4 | — |
| Image Gen (SDXL) | Runs natively | SDXL 1.0 FP16 | ~~13.7s per image |
| Image Gen (Flux) | Won't fit | Flux.1 Dev FP16 | ~~1m 2s per image |
| Image Gen (SD 3.5) | Runs with sequential offload | SD 3.5 Large FP16 | ~~3m 24s per image |
| Video Short (25f) | Runs natively | LTX Video 2B | ~~11.9s/frame |
| Video Long (100f) | Won't fit | Wan Video 14B | ~~35.1s/frame |
Architecture
RDNA 2 is AMD's second-generation RDNA architecture, built on TSMC 7nm. It introduced hardware ray tracing and Infinity Cache for improved bandwidth efficiency. Powers the RX 6000 series and is also used in gaming consoles.
AI Relevance
Limited official ROCm support for consumer RDNA 2 cards — most AI runtimes require workarounds. Can run smaller models via llama.cpp with Vulkan or HIP backends, but performance is well behind NVIDIA equivalents.
Buying advice
Usable for local AI with limits
Can run 11 of 50 top models, mostly smaller ones. Larger models need heavy quantization or won't fit.
16.0 GB
VRAM
$579
MSRP
$36/GB
Cost per GB VRAM
Best models for this GPU
What will limit you first
This setup is broadly balanced for this model.
No major red flags
This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.
Best upgrade itinerary
Unlocks 2 additional models that do not fit on the current setup.
Want more headroom? MacBook Pro M3 24GB (24.0 GB unified memory) is the next step up.
Chat
SThis model is a direct match for chat. It belongs to a current frontier family for local AI. It fits natively with comfortable headroom. Known channels: huggingface, ollama, lm-studio.
Coding
SThis model is a direct match for coding. It belongs to a current frontier family for local AI. It fits natively with comfortable headroom. Known channels: huggingface, ollama, lm-studio.
Agentic Coding
SThis model is still usable for agentic-coding, but it is not the most specialized pick. It belongs to a current frontier family for local AI. It fits natively with comfortable headroom. Known channels: huggingface, ollama, lm-studio.
Reasoning
SThis model is a direct match for reasoning. It belongs to a current frontier family for local AI. It fits natively with comfortable headroom. Known channels: huggingface, ollama, lm-studio.
RAG
AThis model is a direct match for rag. It sits in the middle of the current model mix. It fits natively with comfortable headroom. Known channels: huggingface, ollama.
Just out of reach
High-quality models that need a bit more memory
Image & Video Generation
31 of 52 models can generate images or video on your RX 6800 16GB
| Model | Max Resolution | Gen Time | Grade |
|---|---|---|---|
| SD TurboImage | 512×512 | ~1.7s | S |
| Stable Diffusion 1.5Image | 512×768 | ~3.4s | S |
| Realistic Vision v5.1Image | 512×768 | ~3.4s | S |
| DreamShaper 8Image | 512×768 | ~3.4s | S |
| LCM DreamShaper v7Image | 512×768 | ~1s | S |
| PixArt-SigmaImage | 1024×1024 | ~13.7s | S |
| FramePack I2VVideo | 256×256 | ~25.2s/frame | S |
| SDXL TurboImage | 512×512 | ~1.7s | S |
| SDXL LightningImage | 1024×1024 | ~5.2s | S |
| Stable Diffusion XL 1.0Image | 1024×1024 | ~13.7s | S |
| Playground v2.5Image | 1024×1024 | ~20.6s | S |
| RealVisXL v5.0Image | 1024×1024 | ~15.5s | S |
| DreamShaper XLImage | 1024×1024 | ~15.5s | S |
| Juggernaut XL v9Image | 1024×1024 | ~15.5s | S |
| Animagine XL 3.1Image | 1024×1024 | ~15.5s | S |
| Pony Diffusion V6 XLImage | 1024×1024 | ~15.5s | S |
| Animagine XL 4.0Image | 1024×1024 | ~15.5s | S |
| Illustrious XLImage | 1024×1024 | ~15.5s | S |
| Wan Video 2.1 1.3BVideo | 256×256 | ~10s/frame | S |
| Stable Diffusion 3.5 MediumImage | 256×256 | ~1m 12s | S |
| Flux.2 Klein 4BImage | 256×256 | ~9.3s | S |
| LTX Video 2BVideo | 256×256 | ~11.9s/frame | S |
| KolorsImage | 256×256 | ~1m 13s | A |
| Stable CascadeImage | 1024×1024 | ~34.3s | B |
| AuraFlow v0.3Image | 256×256 | ~2m 2s | B |
| Stable Diffusion 3.5 LargeImage | 256×256 | ~3m 24s | B |
| Stable Diffusion 3.5 Large TurboImage | 256×256 | ~37.1s | B |
| CogVideoX 2BVideo | 256×256 | ~11.9s/frame | D |
| HunyuanVideoVideo | 256×256 | ~25.2s/frame | D |
| ChromaImage | 256×256 | ~13.7s | D |
| Z-Image TurboImage | 256×256 | ~28.3s | D |
| Flux.1 DevImage | 256×256 | ~1m 2s | F |
| Flux.1 SchnellImage | 256×256 | ~12s | F |
| LTX Video 13BVideo | 256×256 | ~25.2s/frame | F |
| Flux.1 Kontext DevImage | 256×256 | ~1m 9s | F |
| AnimateDiff v1.5.3Video | 512×768 | ~6.3s/frame | F |
| Cosmos Diffusion 7BVideo | 256×256 | ~19.7s/frame | F |
| CogVideoX 5BVideo | 256×256 | ~17.2s/frame | F |
| Wan2.2 TI2V 5BVideo | 256×256 | ~17.2s/frame | F |
| Flux.2 Klein 9BImage | 256×256 | ~6.9s | F |
| Flux.1 Fill DevImage | 256×256 | ~58.4s | F |
| Mochi 1 PreviewVideo | 256×256 | ~22.7s/frame | F |
| HunyuanVideo 1.5Video | 256×256 | ~21.1s/frame | F |
| Helios 14BVideo | 256×256 | ~26s/frame | F |
| SkyReels V2 14BVideo | 256×256 | ~26s/frame | F |
| Wan Video 2.1 14BVideo | 256×256 | ~26s/frame | F |
| Wan Video 2.2 14BVideo | 256×256 | ~26s/frame | F |
| Qwen ImageImage | 256×256 | ~23.1s | F |
| Qwen Image EditImage | 256×256 | ~23.1s | F |
| Flux.2 DevImage | 256×256 | ~10m 50s | F |
| MAGI-1Video | 256×256 | ~32.2s/frame | F |
| HunyuanImage 3.0Image | 256×256 | ~40.7s | F |
Image models estimated at 1024×1024 (28 steps, FP16). Video models estimated at 768×512 (25 frames, 30 steps, FP16). Actual performance varies with runtime and system load.
Upgrade paths
See what you unlock with more powerful hardware
Upgrade options
Unlocks 2 additional models that do not fit on the current setup.
~$1,099 MSRP
Unlocks 36 additional models that do not fit on the current setup.
~$599 MSRP
Unlocks 36 additional models that do not fit on the current setup.
Lifts average decode speed across fitting models by about 62%.
~$999 MSRP
Unlocks 81 additional models that do not fit on the current setup.
Lifts average decode speed across fitting models by about 247%.
~$8,000 MSRP
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