Radeon R7 340 OEM and Radeon HD 6770 Green Edition - video card comparison
Radeon R7 340 OEM
Radeon HD 6770 Green Edition
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Oland
Juniper
Market segment
Desktop
Desktop
Release date
May 2015
April 2013
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
780 MHz
-
Core clock speed
730 MHz
700 MHz
Floating-point performance
599.0 gflops
1,008 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
1,040 million
Pipelines / CUDA cores
384
720
Power consumption (TDP)
50 Watt
86 Watt
Texture fill rate
18.72
25.20
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1800 MHz
1334 MHz
Memory bandwidth
28.8 GB/s
21.34 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
2x DVI, 1x HDMI, 2x mini-DisplayPort
HDMI
+
+
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A