GeForce GT 640 OEM and R480 - video card comparison
GeForce GT 640 OEM
R480
Architecture
Kepler (2012−2018)
R400 (2004−2008)
GPU code name
GK107
R480
Market segment
Desktop
Desktop
Release date
April 2012
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
None
-
Core clock speed
797 MHz
-
Floating-point performance
612.1 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
1,270 million
160 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
50 Watt
-
Texture fill rate
25.50
-
Memory type
DDR3
-
Maximum RAM amount
2 GB
-
Memory bus width
128 Bit
-
Memory clock speed
1782 MHz
-
Memory bandwidth
28.51 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
DirectX
12 (11_0)
9.0b (9_2)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
-
Vulkan
1.1.126
N/A