Hawaii and GeForce GT 640 OEM - video card comparison
Hawaii
GeForce GT 640 OEM
Architecture
GCN 2.0 (2013−2017)
Kepler (2012−2018)
GPU code name
Hawaii
GK107
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
28 nm
Number of transistors
6,200 million
1,270 million
Pipelines / CUDA cores
2816
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 (12_0)
12 (11_0)
CUDA
-
3.0
OpenCL
2.1
1.2
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2.170
1.1.126