Radeon HD 6770 and GeForce GTX 275 PhysX Edition - video card comparison
Radeon HD 6770
GeForce GTX 275 PhysX Edition
Architecture
TeraScale 2 (2009−2015)
Tesla 2.0 (2007−2013)
GPU code name
Juniper
GT200B
Market segment
Desktop
Desktop
Release date
January 2011
February 2010
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Boost clock speed
900 MHz
-
Core clock speed
-
633 MHz
Floating-point performance
1,360.0 gflops
622.1 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
1,040 million
1,400 million
Pipelines / CUDA cores
800
240
Power consumption (TDP)
108 Watt
219 Watt
Texture fill rate
34.00
50.64
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
896 MB
Memory bus width
128 Bit
448 Bit
Memory clock speed
1050 MHz
2268 MHz
Memory bandwidth
76.8 GB/s
127.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
11.1 (10_0)
CUDA
-
1.3
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.4
3.3
Shader Model
5.0
4.0
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-