Radeon HD 6970 and Radeon R7 265 - video card comparison
Radeon HD 6970
Radeon R7 265
Architecture
Terascale 2 (2009−2015)
GCN 1.0 (2012−2020)
GPU code name
Cayman
Pitcairn
Market segment
Desktop
Desktop
Release date
December 2010
February 2014
Bus support
PCIe 2.0 x16
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1 x 6-pin
Boost clock speed
880 MHz
925 MHz
Floating-point performance
2,703.4 gflops
1,894 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
2,800 million
Pipelines / CUDA cores
1536
1024
Power consumption (TDP)
550 Watt
150 Watt
Texture fill rate
84.48
59.20
Memory type
DDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1375 MHz
1400 MHz
Memory bandwidth
-
179.2 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
1
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-