Radeon HD 6770M and GeForce GT 650M Mac Edition - video card comparison
Radeon HD 6770M
GeForce GT 650M Mac Edition
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Whistler-XT
GK107
Market segment
Laptop
Desktop
Release date
January 2011
July 2012
Interface
MXM-A (3.0)
PCIe 3.0 x16
Core clock speed
675 / 725 MHz
900 MHz
Floating-point performance
696.0 gflops
691.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
716 million
1,270 million
Pipelines / CUDA cores
480
384
Power consumption (TDP)
35 Watt
45 Watt
Texture fill rate
17.40
28.80
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
800 MHz
5016 MHz
Memory bandwidth
57.6 GB/s
80.26 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
3.0
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126