Radeon 550X and Radeon RX 640 - video card comparison
Passmark - benchmark score Radeon 550X vs Radeon RX 640
Radeon 550X
1472
Radeon RX 640
2020
Radeon 550X
Radeon RX 640
Architecture
GCN 4.0 (2016−2020)
Polaris (2016−2019)
GPU code name
Lexa
Polaris 12
Market segment
Desktop
Laptop
Release date
March 2019
August 2019
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
1218 MHz
1218 MHz
Core clock speed
1082 MHz
1218 MHz
Manufacturing process technology
14 nm
14 nm
Number of transistors
2,200 million
2,200 million
Pipelines / CUDA cores
512
640
Power consumption (TDP)
50 Watt
50 Watt
Texture fill rate
38.98
38.98
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
7000 MHz
6000 MHz
Memory bandwidth
112.0 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12 (12_0)
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.4
6.4
Vulkan
1.2.131
1.2.131
FreeSync
-
+