AMD Radeon R9 M485X
- Graphics Processor
- Amethyst
- Cores
- 2048
- TMUs
- 128
- ROPs
- 32
- Memory Size
- 8 GB
- Memory Type
- GDDR5
- Bus Width
- 256 bit
Recommended Resolutions:
- 640x480
- 1280x720
- 1366x768
- 1600x900
- 1920x1080
- 2560x1440
- 3840x2160
The Radeon R9 M485X is a graphics card by AMD, launched in May 2016. Built on the 28 nm process, and based on the Amethyst graphics processor, in its Amethyst XT variant, the card supports DirectX 12.0. The Amethyst graphics processor is a large chip with a die area of 366 mm² and 5,000 million transistors. It features 2048 shading units, 128 texture mapping units and 32 ROPs. AMD has placed 8,192 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 723 MHz, memory is running at 1250 MHz.
Being a mxm module card, the AMD Radeon R9 M485X does not require any additional power connector, its power draw is rated at 250 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it.
Being a mxm module card, the AMD Radeon R9 M485X does not require any additional power connector, its power draw is rated at 250 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it.
Graphics Processor
- GPU Name
- Amethyst
- GPU Variant
- Amethyst XT
- Architecture
- GCN 3.0
- Foundry
- TSMC
- Process Size
- 28 nm
- Transistors
- 5,000 million
- Die Size
- 366 mm²
Mobile Graphics
- Release Date
- May 15th, 2016
- Generation
-
Crystal System
(R9 M400)
- Production
- Active
- Bus Interface
- MXM-B (3.0)
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 723 MHz
- Memory Clock
-
1250 MHz
5000 MHz effective
Memory
- Memory Size
- 8 GB
- Memory Type
- GDDR5
- Memory Bus
- 256 bit
- Bandwidth
- 160.0 GB/s
Render Config
- Shading Units
- 2048
- TMUs
- 128
- ROPs
- 32
- Compute Units
- 32
- L1 Cache
- 16 KB (per CU)
- L2 Cache
- 512 KB
Theoretical Performance
- Pixel Rate
- 23.14 GPixel/s
- Texture Rate
- 92.54 GTexel/s
- FP16 (half) performance
- 2.961 TFLOPS (1:1)
- FP32 (float) performance
- 2.961 TFLOPS
- FP64 (double) performance
- 185.1 GFLOPS (1:16)
Board Design
- Slot Width
- MXM Module
- TDP
- 250 W
- Outputs
- No outputs
- Power Connectors
- None
Graphics Features
- DirectX
- 12.0 (12_0)
- OpenGL
- 4.6
- OpenCL
- 2.0
- Vulkan
- 1.1.119
- Shader Model
- 6.3
Amethyst GPU Notes
| Architecture Codename: Volcanic Islands Chip Variant: Tonga CLRX Version: GCN 1.2 Graphics/Compute: GFX8 (gfx802) Display Core Engine: 10.0 Unified Video Decoder: 5.0 Video Compression Engine: 3.0 |