Radeon HD 6770 and GeForce GT 620 - video card comparison
Passmark - benchmark score Radeon HD 6770 vs GeForce GT 620
Radeon HD 6770
1286
GeForce GT 620
388
Radeon HD 6770
GeForce GT 620
Architecture
TeraScale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Juniper
GF108
Market segment
Desktop
Desktop
Release date
January 2011
May 2012
Bus support
PCIe 2.0 x16
PCI Express 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
900 MHz
-
Core clock speed
-
700 MHz
CUDA cores
-
96
Floating-point performance
1,360.0 gflops
268.8 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,040 million
585 million
Pipelines / CUDA cores
800
96
Power consumption (TDP)
108 Watt
49 Watt
Maximum GPU temperature
-
98 °C
Texture fill rate
34.00
11.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1050 MHz
1.8 GB/s
Memory bandwidth
76.8 GB/s
14.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
Dual Link DVI-I, HDMI, VGA
Multi monitor support
-
+
Eyefinity
1
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
DisplayPort support
-
-
Audio input for HDMI
-
Internal
DirectX
DirectX® 11
12 (11_0)
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.4
4.2
Shader Model
5.0
5.1
Vulkan
-
N/A
3D Blu-Ray
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-