AMD installation instructions for RDNA3.x+Windows

docs/AMD-INSTALLATION.md

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+# Installation Guide
+
+This guide covers installation for specific RDNA3 and RDNA3.5 AMD CPUs (APUs) and GPUs
+running under Windows. 
+
+tl;dr: Radeon RX 7900 GOOD, RX 9700 BAD, RX 6800 BAD. (I know, life isn't fair).
+
+Currently supported (but not necessary tested):
+
+**gfx110x**:
+
+* Radeon RX 7600
+* Radeon RX 7700 XT
+* Radeon RX 7800 XT
+* Radeon RX 7900 GRE
+* Radeon RX 7900 XT
+* Radeon RX 7900 XTX
+
+**gfx1151**:
+
+* Ryzen 7000 series APUs (Phoenix)
+* Ryzen Z1 (e.g., handheld devices like the ROG Ally)
+
+**gfx1201**:
+
+* Ryzen 8000 series APUs (Strix Point) 
+* A [frame.work](https://frame.work/au/en/desktop) desktop/laptop
+
+
+## Requirements
+
+- Python 3.11 (3.12 might work, 3.10 definately will not!)
+
+## Installation Environment
+
+This installation uses PyTorch 2.7.0 because that's what currently available in
+terms of pre-compiled wheels.
+
+### Installing Python
+
+Download Python 3.11 from [python.org/downloads/windows](https://www.python.org/downloads/windows/). Hit Ctrl+F and search for "3.11". Dont use this direct link: [https://www.python.org/ftp/python/3.11.9/python-3.11.9-amd64.exe](https://www.python.org/ftp/python/3.11.9/python-3.11.9-amd64.exe) -- that was an IQ test.
+
+After installing, make sure `python --version` works in your terminal and returns 3.11.x
+
+If not, you probably need to fix your PATH. Go to:
+
+* Windows + Pause/Break
+* Advanced System Settings
+* Environment Variables
+* Edit your `Path` under User Variables
+
+Example correct entries:
+
+```cmd
+C:\Users\YOURNAME\AppData\Local\Programs\Python\Launcher\
+C:\Users\YOURNAME\AppData\Local\Programs\Python\Python311\Scripts\
+C:\Users\YOURNAME\AppData\Local\Programs\Python\Python311\
+```
+
+If that doesnt work, scream into a bucket.
+
+### Installing Git
+
+Get Git from [git-scm.com/downloads/win](https://git-scm.com/downloads/win). Default install is fine.
+
+
+## Install (Windows, using `venv`)
+
+### Step 1: Download and Set Up Environment
+
+```cmd
+:: Navigate to your desired install directory
+cd \your-path-to-wan2gp
+
+:: Clone the repository
+git clone https://github.com/deepbeepmeep/Wan2GP.git
+cd Wan2GP
+
+:: Create virtual environment using Python 3.10.9
+python -m venv wan2gp-env
+
+:: Activate the virtual environment
+wan2gp-env\Scripts\activate
+```
+
+### Step 2: Install PyTorch
+
+The pre-compiled wheels you need are hosted at [scottt's rocm-TheRock releases](https://github.com/scottt/rocm-TheRock/releases). Find the heading that says:
+
+**Pytorch wheels for gfx110x, gfx1151, and gfx1201**
+
+Don't click this link: [https://github.com/scottt/rocm-TheRock/releases/tag/v6.5.0rc-pytorch-gfx110x](https://github.com/scottt/rocm-TheRock/releases/tag/v6.5.0rc-pytorch-gfx110x). It's just here to check if you're skimming.
+
+Copy the links of the closest binaries to the ones in the example below (adjust if you're not running Python 3.11), then hit enter.
+
+```cmd
+pip install ^
+    https://github.com/scottt/rocm-TheRock/releases/download/v6.5.0rc-pytorch-gfx110x/torch-2.7.0a0+rocm_git3f903c3-cp311-cp311-win_amd64.whl ^
+    https://github.com/scottt/rocm-TheRock/releases/download/v6.5.0rc-pytorch-gfx110x/torchaudio-2.7.0a0+52638ef-cp311-cp311-win_amd64.whl ^
+    https://github.com/scottt/rocm-TheRock/releases/download/v6.5.0rc-pytorch-gfx110x/torchvision-0.22.0+9eb57cd-cp311-cp311-win_amd64.whl
+```
+
+### Step 3: Install Dependencies
+
+```cmd
+:: Install core dependencies
+pip install -r requirements.txt
+```
+
+## Attention Modes
+
+WanGP supports several attention implementations, only one of which will work for you:
+
+- **SDPA** (default): Available by default with PyTorch.  This uses the built-in aotriton accel library, so is actually pretty fast.
+
+## Performance Profiles
+
+Choose a profile based on your hardware:
+
+- **Profile 3 (LowRAM_HighVRAM)**: Loads entire model in VRAM, requires 24GB VRAM for 8-bit quantized 14B model
+- **Profile 4 (LowRAM_LowVRAM)**: Default, loads model parts as needed, slower but lower VRAM requirement
+
+## Running Wan2GP
+
+In future, you will have to do this:
+
+```cmd
+cd \path-to\wan2gp
+wan2gp\Scripts\activate.bat
+python wgp.py
+```
+
+For now, you should just be able to type `python wgp.py` (because you're already in the virtual environment)
+
+## Troubleshooting
+
+- If you use a HIGH VRAM mode, don't be a fool.  Make sure you use VAE Tiled Decoding.
+
+### Memory Issues
+
+- Use lower resolution or shorter videos
+- Enable quantization (default)
+- Use Profile 4 for lower VRAM usage
+- Consider using 1.3B models instead of 14B models
+
+For more troubleshooting, see [TROUBLESHOOTING.md](TROUBLESHOOTING.md)