GeForce GTX 650 and Radeon HD 6770M Mac Edition - video card comparison
GeForce GTX 650
Radeon HD 6770M Mac Edition
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK107
Whistler
Market segment
Desktop
Desktop
Release date
September 2012
January 2011
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
MXM-A (3.0)
Supplementary power connectors
One 6-pin
-
Core clock speed
1058 MHz
725 MHz
CUDA cores
384
-
Floating-point performance
812.5 gflops
696.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
716 million
Pipelines / CUDA cores
384
480
Power consumption (TDP)
64 Watt
35 Watt
Texture fill rate
33.9 billion/sec
17.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
512 MB
Memory bus width
128-bit GDDR5
128 Bit
Memory clock speed
5.0 GB/s
3600 MHz
Memory bandwidth
80.0 GB/s
57.6 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One Mini HDMI
No outputs
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.3
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-