Radeon RX 550X and Radeon 660M - video card comparison
Passmark - benchmark score Radeon RX 550X vs Radeon 660M
Radeon RX 550X
2322
Radeon 660M
6474
Radeon RX 550X
Radeon 660M
Architecture
GCN 4.0 (2016−2020)
RDNA 2 (2020−2022)
GPU code name
Lexa
RDNA 2 Rembrandt
Market segment
Desktop
Laptop
Release date
December 2018
January 2022
Interface
PCIe 3.0 x8
PCIe 4.0 x8
Supplementary power connectors
None
None
Boost clock speed
1183 MHz
1900 MHz
Core clock speed
1100 MHz
-
Floating-point performance
1,211 gflops
-
Manufacturing process technology
14 nm
6 nm
Number of transistors
2,200 million
13,100 million
Pipelines / CUDA cores
512
384
Power consumption (TDP)
50 Watt
45 Watt
Texture fill rate
37.86
45.60
Memory type
GDDR5
System Shared
Maximum RAM amount
4 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
6000 MHz
System Shared
Memory bandwidth
96 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (12_1)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.5
Vulkan
1.2.131
1.2