AMD Radeon RX 570X vs AMD Radeon RX 640 Mobile
GPU Specs Compare
Graphics Card
Release Date
Apr 2018
May 2019
Generation
Polaris
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
1168 MHz
1082 MHz
Boost Clock
1244 MHz
1218 MHz
Memory Clock
1750 MHz
1500 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
64bit
Bandwidth
224.0GB/s
48.00GB/s
Render Config
Compute Units
32
10
Shading Units
2048
640
TMUs
128
40
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
512 KB
Theoretical Performance
Pixel Rate
39.81 GPixel/s
19.49 GPixel/s
Texture Rate
159.2 GTexel/s
48.72 GTexel/s
FP16 (half)
5.095 TFLOPS
1.559 TFLOPS
FP32 (float)
5.095 TFLOPS
1.559 TFLOPS
FP64 (double)
318.5 GFLOPS
97.44 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Polaris 23
GPU Variant
Polaris 20 XL(215-0910052)
Polaris 23 XT
Architecture
GCN 4.0
GCN 4.0
Foundry
GlobalFoundries
GlobalFoundries
Process Size
14 nm
14 nm
Transistors
5.7 billion
2.2 billion
Die Size
232 mm²
103 mm²
Board Design
TDP
150W
50W
Suggested PSU
450 W
-
Outputs
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
No outputs
Power Connectors
1x 6-pin
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
Shader Model
6.4
6.4