Iris Plus Graphics 655 and Radeon 550X Mobile - video card comparison
Iris Plus Graphics 655
Radeon 550X Mobile
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
GCN 4.0 (2016−2020)
GPU code name
Kaby Lake GT3e
Polaris 23
Market segment
Laptop
Laptop
Release date
September 2017
April 2018
Interface
PCIe 3.0 x1
PCIe 3.0 x8
Boost clock speed
1200 MHz
1287 MHz
Core clock speed
300 MHz
1100 MHz
Floating-point performance
-
1,647 gflops
Manufacturing process technology
14 nm
14 nm
Number of transistors
189 million
2,200 million
Pipelines / CUDA cores
48
640
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
50.40
51.48
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
System Shared
4 GB
Memory bus width
System Shared
64 Bit
Memory clock speed
System Shared
6000 MHz
Memory bandwidth
-
48 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (12_0)
OpenCL
2.1
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.4
Vulkan
1.1.103
1.2.131
Quick Sync
+
-