GeForce GT 640 and Radeon RX 550X - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon RX 550X
GeForce GT 640
1210
Radeon RX 550X
2322
GeForce GT 640
Radeon RX 550X
Architecture
Kepler (2012−2018)
GCN 4.0 (2016−2020)
GPU code name
GK107
Lexa
Market segment
Desktop
Desktop
Release date
June 2012
December 2018
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
-
1183 MHz
Core clock speed
902 MHz
1100 MHz
Floating-point performance
692.7 gflops
1,211 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,270 million
2,200 million
Pipelines / CUDA cores
384
512
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
28.86
37.86
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
6000 MHz
Memory bandwidth
28.51 GB/s
96 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 (12_0)
CUDA
3.0
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131