Radeon RX 460 and GeForce GT 640 Rev. 2 - video card comparison
Radeon RX 460
GeForce GT 640 Rev. 2
Architecture
Polaris (2016−2019)
Kepler 2.0 (2013−2015)
GPU code name
Polaris 11 / Baffin XT
GK208
Market segment
Desktop
Desktop
Release date
August 2016
May 2013
Interface
PCIe 3.0 x8
PCIe 2.0 x8
Supplementary power connectors
None
None
Boost clock speed
1200 MHz
-
Core clock speed
1090 MHz
1046 MHz
Floating-point performance
2,150 gflops
803.3 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
915 million
Pipelines / CUDA cores
896
384
Power consumption (TDP)
75 Watt
49 Watt
Texture fill rate
67.20
33.47
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
7000 MHz
5008 MHz
Memory bandwidth
112.0 GB/s
40.06 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (12_0)
12 (11_0)
CUDA
-
3.5
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
FreeSync
+
-