Radeon R7 265 and Radeon HD 6770 - video card comparison
Radeon R7 265
Radeon HD 6770
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Pitcairn
Juniper
Market segment
Desktop
Desktop
Release date
February 2014
January 2011
Bus support
PCIe 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin
1x 6-pin
Boost clock speed
925 MHz
900 MHz
Floating-point performance
1,894 gflops
1,360.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
1,040 million
Pipelines / CUDA cores
1024
800
Power consumption (TDP)
150 Watt
108 Watt
Texture fill rate
59.20
34.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1400 MHz
1050 MHz
Memory bandwidth
179.2 GB/s
76.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
1
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 12
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-