Radeon HD 7950 and Radeon R7 265 - video card comparison
Radeon HD 7950
Radeon R7 265
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Tahiti
Pitcairn
Market segment
Desktop
Desktop
Release date
January 2012
February 2014
Bus support
PCIe 3.0 x16
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
1 x 6-pin
Boost clock speed
1250 MHz
925 MHz
Compute units
28
-
Floating-point performance
2,867 gflops
1,894 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
2,800 million
Pipelines / CUDA cores
1792
1024
Power consumption (TDP)
200 Watt
150 Watt
Texture fill rate
89.60
59.20
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
1250 MHz
1400 MHz
Memory bandwidth
240 GB/s
179.2 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
1
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
AppAcceleration
+
-
CrossFire
1
1
DDMA audio
-
+
Enduro
-
-
FreeSync
1
1
HD3D
-
-
PowerTune
+
-
TrueAudio
-
-
ZeroCore
+
-