
GeForce GTX 680 Mac Edition and R423 - video card comparison
GeForce GTX 680 Mac Edition
R423
Architecture
Kepler (2012−2018)
R400 (2004−2008)
GPU code name
GK104
R423
Market segment
Desktop
Desktop
Release date
April 2013
-
Interface
PCIe 2.0 x16
-
Supplementary power connectors
2x 6-pin
-
Boost clock speed
1058 MHz
-
Core clock speed
1006 MHz
-
Floating-point performance
3,250 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
3,540 million
160 million
Pipelines / CUDA cores
1536
-
Power consumption (TDP)
195 Watt
-
Texture fill rate
135.4
-
Memory type
GDDR5
-
Maximum RAM amount
2 GB
-
Memory bus width
256 Bit
-
Memory clock speed
6008 MHz
-
Memory bandwidth
192.3 GB/s
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
DirectX
12 (11_0)
9.0b (9_2)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
-
Vulkan
1.1.126
N/A