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AMD Radeon R5 M420
- Graphics Processor
- Jet
- Cores
- 320
- TMUs
- 20
- ROPs
- 8
- Memory Size
- 4 GB
- Memory Type
- DDR3
- Bus Width
- 64 bit
GPU
Recommended Gaming Resolutions:
- 1366x768
- 1600x900
- 1920x1080
The Radeon R5 M420 was a mobile graphics chip by AMD, launched on May 15th, 2016. Built on the 28 nm process, and based on the Jet graphics processor, in its Jet 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 Jet graphics processor is a relatively small chip with a die area of only 56 mm² and 690 million transistors. Unlike the fully unlocked Radeon R6 M335DX, which uses the same GPU but has all 384 shaders enabled, AMD has disabled some shading units on the Radeon R5 M420 to reach the product's target shader count. It features 320 shading units, 20 texture mapping units, and 8 ROPs. AMD has paired 4 GB DDR3 memory with the Radeon R5 M420, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 780 MHz, which can be boosted up to 850 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 R5 M420 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 R5 M420 is connected to the rest of the system using a PCI-Express 3.0 x8 interface.
Graphics Processor
Mobile Graphics
- Release Date
- May 15th, 2016
- Generation
-
Gem System
(R5 M400)
- 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 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- Base Clock
- 780 MHz
- Boost Clock
- 850 MHz
- Memory Clock
-
1000 MHz
2 Gbps effective
Memory
- Memory Size
- 4 GB
- Memory Type
- DDR3
- Memory Bus
- 64 bit
- Bandwidth
- 16.00 GB/s
Render Config
- Shading Units
- 320
- TMUs
- 20
- ROPs
- 8
- Compute Units
- 5
- L1 Cache
- 16 KB (per CU)
- L2 Cache
- 128 KB
Theoretical Performance
- Pixel Rate
- 6.800 GPixel/s
- Texture Rate
- 17.00 GTexel/s
- FP32 (float)
- 544.0 GFLOPS
- FP64 (double)
- 34.00 GFLOPS (1:16)
Board Design
- Slot Width
- IGP
- TDP
- unknown
- Outputs
- Portable Device Dependent
Graphics Features
- DirectX
- 12 (11_1)
- OpenGL
- 4.6
- OpenCL
- 2.1 (1.2)
- Vulkan
- 1.2.170
- Shader Model
- 6.5 (5.1)
Jet GPU Notes
| Generation: Sea Islands Desktop Variant: Hainan Mobile Variant: Sun / Exo / Banks Graphics/Compute: GFX6 (gfx601) Display Core Engine: No Support Unified Video Decoder: No Support Video Compression Engine: No Support CLRX: GCN 1.0 |
Devices based on this design (2)
| Name | GPU Clock | Boost Clock | Memory Clock | Other Changes |
|---|---|---|---|---|
| 780 MHz | 850 MHz | 1000 MHz | 2 GB | |
| 780 MHz | 850 MHz | 1000 MHz | 2 GB |
Dec 22nd, 2024 12:15 EST
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