AMD Radeon RX 550 Mobile vs AMD Radeon RX 580 OEM
GPU Specs Compare
Graphics Card
Release Date
Jul 2017
Jun 2016
Generation
Mobility Radeon
Polaris
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1100 MHz
1120 MHz
Boost Clock
1287 MHz
1266 MHz
Memory Clock
1500 MHz
2000 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
256bit
Bandwidth
96.00GB/s
256.0GB/s
Render Config
Compute Units
10
36
Shading Units
640
2304
TMUs
40
144
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
20.59 GPixel/s
40.51 GPixel/s
Texture Rate
51.48 GTexel/s
182.3 GTexel/s
FP16 (half)
1.647 TFLOPS
5.834 TFLOPS
FP32 (float)
1.647 TFLOPS
5.834 TFLOPS
FP64 (double)
103.0 GFLOPS
364.6 GFLOPS
Graphics Processor
GPU Name
Lexa
Ellesmere
GPU Variant
Lexa PRO(215-0904018)
Polaris 10 XT(215-0876184)
Architecture
GCN 4.0
GCN 4.0
Foundry
GlobalFoundries
GlobalFoundries
Process Size
14 nm
14 nm
Transistors
2.2 billion
5.7 billion
Die Size
103 mm²
232 mm²
Board Design
TDP
50W
150W
Outputs
No outputs
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
None
1x 6-pin
Suggested PSU
-
450 W
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