Radeon HD 6770 Green Edition and GK20A - video card comparison
Radeon HD 6770 Green Edition
GK20A
Architecture
TeraScale 2 (2009−2015)
Kepler 2.0 (2013−2015)
GPU code name
Juniper
GK20A
Market segment
Desktop
Desktop
Release date
April 2013
-
Interface
PCIe 2.0 x16
-
Core clock speed
700 MHz
-
Floating-point performance
1,008 gflops
-
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,040 million
-
Pipelines / CUDA cores
720
192
Power consumption (TDP)
86 Watt
-
Texture fill rate
25.20
-
Memory type
GDDR3
-
Maximum RAM amount
2 GB
-
Memory bus width
128 Bit
-
Memory clock speed
1334 MHz
-
Memory bandwidth
21.34 GB/s
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
-
HDMI
+
-
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
3.2
OpenCL
1.2
N/A
OpenGL
4.4
ES 3.1
Shader Model
5.0
6.5 (5.1)
Vulkan
N/A
1.3
PureVideo HD
-
VP5