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AMD Radeon R7 M340
- Graphics Processor
- Opal
- Cores
- 384
- TMUs
- 24
- ROPs
- 8
- Memory Size
- 1024 MB
- Memory Type
- DDR3
- Bus Width
- 64 bit
GPU
Recommended Gaming Resolutions:
- 640x480
- 1280x720
- 1366x768
The Radeon R7 M340 was a mobile graphics chip by AMD, launched on December 6th, 2015. Built on the 28 nm process, and based on the Opal graphics processor, in its Opal PRO variant, the chip supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. The Opal graphics processor is a relatively small chip with a die area of only 77 mm² and 950 million transistors. It features 384 shading units, 24 texture mapping units, and 8 ROPs. AMD has paired 1,024 MB DDR3 memory with the Radeon R7 M340, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 620 MHz, which can be boosted up to 715 MHz, memory is running at 1000 MHz.
Its power draw is not exactly known. 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 R7 M340 is connected to the rest of the system using a PCI-Express 3.0 x8 interface.
Its power draw is not exactly known. 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 R7 M340 is connected to the rest of the system using a PCI-Express 3.0 x8 interface.
Graphics Processor
Mobile Graphics
- Release Date
- Dec 6th, 2015
- Generation
-
Gem System
(R7 M300)
- Predecessor
- Solar System
- Successor
- Polaris Mobile
- Production
- End-of-life
- Bus Interface
- PCIe 3.0 x8
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for RTX 3080 and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- Base Clock
- 620 MHz
- Boost Clock
- 715 MHz
- Memory Clock
-
1000 MHz
2 Gbps effective
Memory
- Memory Size
- 1024 MB
- Memory Type
- DDR3
- Memory Bus
- 64 bit
- Bandwidth
- 16.00 GB/s
Render Config
- Shading Units
- 384
- TMUs
- 24
- ROPs
- 8
- Compute Units
- 6
- L1 Cache
- 16 KB (per CU)
- L2 Cache
- 256 KB
Theoretical Performance
- Pixel Rate
- 5.720 GPixel/s
- Texture Rate
- 17.16 GTexel/s
- FP32 (float)
- 549.1 GFLOPS
- FP64 (double)
- 34.32 GFLOPS (1:16)
Board Design
- TDP
- unknown
- Outputs
- Portable Device Dependent
- Power Connectors
- None
Graphics Features
- DirectX
- 12 (11_1)
- OpenGL
- 4.6
- OpenCL
- 2.1 (1.2)
- Vulkan
- 1.2.170
- Shader Model
- 6.5 (5.1)
Card Notes
| Memory Variant: 1GB GDDR5 |
Opal GPU Notes
| Generation: Sea Islands Desktop Variant: Oland Mobile Variant: Mars / Litho Codename: Tiran Graphics/Compute: GFX6 (gfx601) Display Core Engine: 6.4 Unified Video Decoder: 4.0 Video Compression Engine: 1.0 CLRX: GCN 1.0 |
Jul 19th, 2025 12:58 CDT
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