GeForce GT 640 and Radeon 550 - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon 550
GeForce GT 640
1209
Radeon 550
2018
GeForce GT 640
Radeon 550
Architecture
Kepler (2012−2018)
GCN 4.0 (2016−2020)
GPU code name
GK107
Lexa
Market segment
Desktop
Desktop
Release date
June 2012
April 2017
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
-
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
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
7 GB/s
Memory bandwidth
28.51 GB/s
56 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI 2.0b, 1x DisplayPort 1.4a
HDMI
+
+
DirectX
12 (11_0)
12 (12_0)
CUDA
3.0
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3