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AMD Radeon R9 M390X
- Graphics Processor
- Amethyst
- Cores
- 2048
- TMUs
- 128
- ROPs
- 32
- Memory Size
- 4 GB
- Memory Type
- GDDR5
- Bus Width
- 256 bit
GPU
Recommended Gaming Resolutions:
- 1600x900
- 1920x1080
- 2560x1440
The Radeon R9 M390X was a mobile graphics chip by AMD, launched on May 5th, 2015. Built on the 28 nm process, and based on the Amethyst graphics processor, in its Amethyst XT variant, the chip supports DirectX 12. This ensures that all modern games will run on Radeon R9 M390X. 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 paired 4 GB GDDR5 memory with the Radeon R9 M390X, 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 (5 Gbps effective).
Being a mxm module card, the AMD Radeon R9 M390X does not require any additional power connector, its power draw is rated at 75 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. Radeon R9 M390X is connected to the rest of the system using a PCI-Express 3.0 x16 interface.
Being a mxm module card, the AMD Radeon R9 M390X does not require any additional power connector, its power draw is rated at 75 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device. Radeon R9 M390X is connected to the rest of the system using a PCI-Express 3.0 x16 interface.
Graphics Processor
Mobile Graphics
- Release Date
- May 5th, 2015
- Generation
-
Gem System
(R9 M300)
- Predecessor
- Solar System
- Successor
- Polaris Mobile
- Production
- End-of-life
- Bus Interface
- PCIe 3.0 x16
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 723 MHz
- Memory Clock
-
1250 MHz
5 Gbps effective
Memory
- Memory Size
- 4 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)
- 2.961 TFLOPS (1:1)
- FP32 (float)
- 2.961 TFLOPS
- FP64 (double)
- 185.1 GFLOPS (1:16)
Board Design
- Slot Width
- MXM Module
- TDP
- 75 W
- Outputs
- Portable Device Dependent
- Power Connectors
- None
- Board Number
- C608
Graphics Features
- DirectX
- 12 (12_0)
- OpenGL
- 4.6
- OpenCL
- 2.1
- Vulkan
- 1.2.170
- Shader Model
- 6.5
Amethyst GPU Notes
| Generation: Volcanic Islands Desktop Variant: Tonga / Antigua Graphics/Compute: GFX8 (gfx802) Display Core Engine: 10.0 Unified Video Decoder: 5.0 Video Compression Engine: 3.0 System DMA: 3.0.0 CLRX: GCN 1.2.0 |
Apr 16th, 2024 14:21 EDT
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