Radeon R9 280 and Radeon HD 7970 - video card comparison
Passmark - benchmark score Radeon R9 280 vs Radeon HD 7970
Radeon R9 280
5725
Radeon HD 7970
5405
Radeon R9 280
Radeon HD 7970
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Tahiti
Tahiti XT
Market segment
Desktop
Desktop
Release date
March 2014
December 2011
Bus support
PCIe 3.0
PCIe 2.1 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
1x 6-pin + 1x 8-pin
Boost clock speed
933 MHz
925 MHz
Floating-point performance
3,344 gflops
3,789 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
4,313 million
Pipelines / CUDA cores
1792
2048
Power consumption (TDP)
200 Watt
300 Watt
Texture fill rate
104.5
118.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
6 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
1250 MHz
1375 MHz
Memory bandwidth
240 GB/s
264 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
+
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 12
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
1
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-