GeForce GTX 680MX Mac Edition and R680 - video card comparison
GeForce GTX 680MX Mac Edition
R680
Architecture
Kepler (2012−2018)
TeraScale (2005−2013)
GPU code name
GK104
R680
Market segment
Desktop
Desktop
Release date
October 2012
-
Interface
PCIe 3.0 x16
-
Core clock speed
719 MHz
-
Floating-point performance
2,209 gflops
-
Manufacturing process technology
28 nm
55 nm
Number of transistors
3,540 million
666 million
Pipelines / CUDA cores
1536
320
Power consumption (TDP)
122 Watt
-
Texture fill rate
92.03
-
Memory type
GDDR5
-
Maximum RAM amount
2 GB
-
Memory bus width
256 Bit
-
Memory clock speed
5000 MHz
-
Memory bandwidth
160.0 GB/s
-
Display Connectors
No outputs
-
DirectX
12 (11_0)
10.1 (10_1)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3 (full)
Shader Model5.14.1
Vulkan
1.1.126
N/A