AMD Radeon RX 550X Mobile vs AMD Radeon Pro Vega 20
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
Nov 2018
Generation
Mobility Radeon
Radeon Pro Mac
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1100 MHz
815 MHz
Boost Clock
1176 MHz
1283 MHz
Memory Clock
1500 MHz
740 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
HBM2
Memory Bus
64bit
1024bit
Bandwidth
48.00GB/s
189.4GB/s
Render Config
Compute Units
10
20
Shading Units
640
1280
TMUs
40
80
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
18.82 GPixel/s
41.06 GPixel/s
Texture Rate
47.04 GTexel/s
102.6 GTexel/s
FP16 (half)
1.505 TFLOPS
6.569 TFLOPS
FP32 (float)
1.505 TFLOPS
3.284 TFLOPS
FP64 (double)
94.08 GFLOPS
205.3 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Vega 12
GPU Variant
Polaris 23 MXT
Vega 12 XTA
Architecture
GCN 4.0
GCN 5.0
Foundry
GlobalFoundries
GlobalFoundries
Process Size
14 nm
14 nm
Transistors
2.2 billion
Unknown
Die Size
103 mm²
Unknown
Board Design
TDP
50W
100W
Outputs
No outputs
No outputs
Power Connectors
None
—
Graphics Features
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.2
Shader Model
6.4
6.3
Benchmark
3DMark Time Spy
—
2,596
3DMark Time Spy Extreme
—
1,211
▲ Specs Compare
Data sourced from official specifications and benchmark tests.