GeForce GT 640 Rev. 2 and Radeon R6 M335DX - video card comparison
GeForce GT 640 Rev. 2
Radeon R6 M335DX
Architecture
Kepler 2.0 (2013−2015)
GCN 1.0 (2012−2020)
GPU code name
GK208
Jet
Market segment
Desktop
Desktop
Release date
May 2013
December 2015
Interface
PCIe 2.0 x8
IGP
Supplementary power connectors
None
-
Boost clock speed
-
1030 MHz
Core clock speed
1046 MHz
955 MHz
Floating-point performance
803.3 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
915 million
690 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
49 Watt
-
Texture fill rate
33.47
24.72
Memory type
GDDR5
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
64 Bit
System Shared
Memory clock speed
5008 MHz
System Shared
Memory bandwidth
40.06 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (11_1)
CUDA
3.5
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.2.131