Radeon R5 230 and GeForce GT 640 OEM - video card comparison
Radeon R5 230
GeForce GT 640 OEM
Architecture
TeraScale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Caicos
GK107
Market segment
Desktop
Desktop
Release date
April 2014
April 2012
Bus support
PCIe 1.0 x4
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
N/A
None
Core clock speed
-
797 MHz
Floating-point performance
200.0 gflops
612.1 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
370 million
1,270 million
Pipelines / CUDA cores
160
384
Power consumption (TDP)
19 Watt
50 Watt
Texture fill rate
5.000
25.50
Memory type
DDR3
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
-
1782 MHz
Memory bandwidth
10.67 GB/s
28.51 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 (11_0)
CUDA
-
3.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
-
1.1.126
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
-
-
Enduro
-
-
HD3D
-
-
PowerPlay
+
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-