Radeon R5 230 and GeForce GT 640M Mac Edition - video card comparison
Radeon R5 230
GeForce GT 640M Mac Edition
Architecture
TeraScale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Caicos
GK107
Market segment
Desktop
Desktop
Release date
April 2014
February 2013
Bus support
PCIe 1.0 x4
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
N/A
-
Core clock speed
-
745 MHz
Floating-point performance
200.0 gflops
572.2 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
32 Watt
Texture fill rate
5.000
23.84
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
512 MB
Memory bus width
64 Bit
64 Bit
Memory clock speed
-
5000 MHz
Memory bandwidth
10.67 GB/s
40 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
No outputs
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
-
-