GeForce GTX 675MX and Radeon HD 6750M Mac Edition - video card comparison
GeForce GTX 675MX
Radeon HD 6750M Mac Edition
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
N13E-GSR
Whistler
Market segment
Laptop
Desktop
Release date
October 2012
April 2011
Bus support
PCI Express 2.0
-
Interface
MXM-B (3.0)
MXM-A (3.0)
Supplementary power connectors
None
-
SLI options
+
-
Core clock speed
600 MHz
598 MHz
CUDA cores
960
-
Floating-point performance
1,256 gflops
574.1 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
716 million
Pipelines / CUDA cores
960
480
Power consumption (TDP)
100 Watt
35 Watt
Texture fill rate
48.0 billion/sec
14.35
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
512 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1800 MHz
3176 MHz
Memory bandwidth
115.2 GB/s
50.82 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
11.2 (11_0)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A
Optimus
+
-