GeForce GTX 680M and GeForce GTX 680 Mac Edition - video card comparison
GeForce GTX 680M
GeForce GTX 680 Mac Edition
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
N13E-GTX
GK104
Market segment
Laptop
Desktop
Release date
June 2012
April 2013
Bus support
PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
2x 6-pin
SLI options
+
-
Boost clock speed
758 MHz
1058 MHz
Core clock speed
720 MHz
1006 MHz
CUDA cores
1344
-
Floating-point performance
2,038 gflops
3,250 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
3,540 million
Pipelines / CUDA cores
1344
1536
Power consumption (TDP)
100 Watt
195 Watt
Texture fill rate
80.6 billion/sec
135.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1800 MHz
6008 MHz
Memory bandwidth
115.2 GB/s
192.3 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 API
12 (11_0)
CUDA
+
3.0
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
Optimus
+
-