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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 7900 XTX 24GB is AMD's consumer AI flagship for RDNA 3, offering full official ROCm support alongside 24 GB of GDDR6 VRAM and nearly 1 TB/s of memory bandwidth. It competes directly with the RTX 4090 in VRAM capacity and is the go-to recommendation for AMD enthusiasts wanting a capable local inference card. The full ROCm support means PyTorch, llama.cpp ROCm, and other frameworks work out of the box on Linux.
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) | Runs natively | Qwen 3 30B Q4 | — |
| LLM Large (70B) |
Architecture
RDNA 3 is AMD's chiplet-based GPU architecture, combining a 5nm Graphics Compute Die (GCD) with 6nm Memory Cache Dies (MCDs). It introduces AI accelerators and a new unified compute unit design.
AI Relevance
ROCm support for RDNA 3 is maturing but lags behind NVIDIA's CUDA ecosystem. AI accelerator units provide some inference acceleration, but lack the dedicated Tensor Core equivalent found in NVIDIA GPUs.
Cost vs cloud API
Assumes 4 hours/day of active inference at 105 tok/s, RX 7900 XTX 24GB amortized over 36 months, US residential electricity ($0.15/kWh), blended cloud pricing at $10 per 1M tokens (GPT-4o / Claude Sonnet tier).
45.1M
Tokens/month at this pace
$34.1
Monthly local cost
$451
Same tokens on cloud API
$0.756
Local $/1M tokens
Break-even: pays for itself in 2.2 months vs cloud API at this workload. Price reference: $999 MSRP.
Chat
SQwen 3 14B matches Chat and keeps a practical fit profile. It is a recent-generation family, which helps on current local SOTA workloads. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama, lm-studio.
Coding
SCodestral 2 25.08 is a specialized fit for Coding. It is a recent-generation family, which helps on current local SOTA workloads. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, lm-studio.
Agentic Coding
SJust out of reach
High-quality models that need a bit more memory
Image & Video Generation
41 of 52 models can generate images or video on your RX 7900 XTX 24GB
| Model | Max Resolution | Gen Time | Grade |
|---|---|---|---|
| SD TurboImage | 512×512 | 700ms | S |
| Stable Diffusion 1.5Image | 512×768 | ~1.4s | S |
| Realistic Vision v5.1Image | 512×768 | ~1.4s | S |
| DreamShaper 8Image | 512×768 | ~1.4s | S |
| LCM DreamShaper v7 |
Upgrade paths
See what you unlock with more powerful hardware
Upgrade options
Unlocks 1 additional models that do not fit on the current setup.
~$2,499 MSRP
Unlocks 6 additional models that do not fit on the current setup.
~$2,499 MSRP
Unlocks 17 additional models that do not fit on the current setup.
~$1,099 MSRP
Unlocks 45 additional models that do not fit on the current setup.
Lifts average decode speed across fitting models by about 115%.
~$8,000 MSRP
Compare with similar
Related guides
| Won’t fit |
| Llama 3.1 70B Q4 |
| — |
| Image Gen (SDXL) | Runs natively | SDXL 1.0 FP16 | ~~5.7s per image |
| Image Gen (Flux) | Runs with offload | Flux.1 Dev FP16 | ~~25.5s per image |
| Image Gen (SD 3.5) | Runs natively | SD 3.5 Large FP16 | ~~31.2s per image |
| Video Short (25f) | Runs natively | LTX Video 2B | ~~4.9s/frame |
| Video Long (100f) | Won't fit | Wan Video 14B | ~~14.5s/frame |
Qwen 3.6 27B is a specialized fit for Agentic Coding. It is a recent-generation family, which helps on current local SOTA workloads. It should run, but memory headroom will be limited. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, lm-studio.
Reasoning
SQwen 3 14B matches Reasoning and keeps a practical fit profile. It is a recent-generation family, which helps on current local SOTA workloads. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama, lm-studio.
RAG
AGranite 4.1 8B matches RAG and keeps a practical fit profile. It sits in the middle of the current generation mix. It fits natively with comfortable headroom. Context coverage stays within the requested workload envelope. Known distribution channels: huggingface, ollama.
| 512×768 |
| 400ms |
| S |
| PixArt-SigmaImage | 1024×1024 | ~5.7s | S |
| FramePack I2VVideo | 256×256 | ~10.4s/frame | S |
| SDXL TurboImage | 512×512 | 700ms | S |
| SDXL LightningImage | 1024×1024 | ~2.1s | S |
| Stable Diffusion XL 1.0Image | 1024×1024 | ~5.7s | S |
| Playground v2.5Image | 1024×1024 | ~8.5s | S |
| RealVisXL v5.0Image | 1024×1024 | ~6.4s | S |
| DreamShaper XLImage | 1024×1024 | ~6.4s | S |
| Juggernaut XL v9Image | 1024×1024 | ~6.4s | S |
| Animagine XL 3.1Image | 1024×1024 | ~6.4s | S |
| Pony Diffusion V6 XLImage | 1024×1024 | ~6.4s | S |
| Animagine XL 4.0Image | 1024×1024 | ~6.4s | S |
| Illustrious XLImage | 1024×1024 | ~6.4s | S |
| Wan Video 2.1 1.3BVideo | 256×256 | ~4.1s/frame | S |
| Stable Diffusion 3.5 MediumImage | 1024×1024 | ~9.9s | S |
| Flux.2 Klein 4BImage | 1024×1024 | ~1.7s | S |
| LTX Video 2BVideo | 768×512 | ~4.9s/frame | S |
| KolorsImage | 1024×1024 | ~11.4s | S |
| Stable CascadeImage | 1024×1024 | ~14.2s | S |
| AuraFlow v0.3Image | 1536×1536 | ~25.5s | S |
| Stable Diffusion 3.5 LargeImage | 1024×1024 | ~31.2s | S |
| Stable Diffusion 3.5 Large TurboImage | 1024×1024 | ~5.7s | S |
| CogVideoX 2BVideo | 720×480 | ~4.9s/frame | A |
| HunyuanVideoVideo | 256×256 | ~10.4s/frame | A |
| ChromaImage | 256×256 | ~10.4s | A |
| Z-Image TurboImage | 1536×1536 | ~5.9s | B |
| Flux.1 DevImage | 256×256 | ~25.5s | B |
| Flux.1 SchnellImage | 256×256 | ~5s | B |
| LTX Video 13BVideo | 256×256 | ~10.4s/frame | B |
| Flux.1 Kontext DevImage | 256×256 | ~28.4s | B |
| AnimateDiff v1.5.3Video | 512×768 | ~2.6s/frame | B |
| Cosmos Diffusion 7BVideo | 256×256 | ~15.7s/frame | B |
| CogVideoX 5BVideo | 256×256 | ~14.9s/frame | B |
| Wan2.2 TI2V 5BVideo | 256×256 | ~14.9s/frame | B |
| Flux.2 Klein 9BImage | 256×256 | ~5.2s | D |
| Flux.1 Fill DevImage | 256×256 | ~24.1s | D |
| Mochi 1 PreviewVideo | 256×256 | ~9.4s/frame | F |
| HunyuanVideo 1.5Video | 256×256 | ~8.7s/frame | F |
| Helios 14BVideo | 256×256 | ~10.7s/frame | F |
| SkyReels V2 14BVideo | 256×256 | ~10.7s/frame | F |
| Wan Video 2.1 14BVideo | 256×256 | ~10.7s/frame | F |
| Wan Video 2.2 14BVideo | 256×256 | ~10.7s/frame | F |
| Qwen ImageImage | 256×256 | ~9.6s | F |
| Qwen Image EditImage | 256×256 | ~9.6s | F |
| Flux.2 DevImage | 256×256 | ~4m 29s | F |
| MAGI-1Video | 256×256 | ~13.3s/frame | F |
| HunyuanImage 3.0Image | 256×256 | ~16.8s | 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.
Buying advice
Excellent choice for local AI
Runs 26 of 50 top models well — a strong all-rounder for local inference.
24.0 GB
VRAM
$999
MSRP
$42/GB
Cost per GB VRAM
Best models for this GPU
What will limit you first
This setup is broadly balanced for this model.
Very little memory headroom
You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.
Best upgrade itinerary
Buy headroom, not only minimum fit
A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.
Unlocks 1 additional models that do not fit on the current setup.
Want more headroom? MacBook Pro M4 Max 36GB (36.0 GB unified memory) is the next step up.
