AMD Radeon RX 640 Mobile vs AMD Radeon R9 M470
GPU Specs Compare
Graphics Card
Release Date
May 2019
May 2016
Generation
Mobility Radeon
Gem System
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1082 MHz
900 MHz
Boost Clock
1218 MHz
1000 MHz
Memory Clock
1500 MHz
1375 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
64bit
128bit
Bandwidth
48.00GB/s
88.00GB/s
Render Config
Compute Units
10
12
Shading Units
640
768
TMUs
40
48
ROPs
16
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Theoretical Performance
Pixel Rate
19.49 GPixel/s
16.00 GPixel/s
Texture Rate
48.72 GTexel/s
48.00 GTexel/s
FP16 (half)
1.559 TFLOPS
-
FP32 (float)
1.559 TFLOPS
1.536 TFLOPS
FP64 (double)
97.44 GFLOPS
96.00 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Emerald
GPU Variant
Polaris 23 XT
Emerald PRO
Architecture
GCN 4.0
GCN 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
2.2 billion
2.08 billion
Die Size
103 mm²
160 mm²
Board Design
TDP
50W
Unknown
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
-
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.2.170
Shader Model
6.4
6.5