Radeon R9 280 and Radeon HD 8970M Crossfire - video card comparison
Radeon R9 280
Radeon HD 8970M Crossfire
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Tahiti
Neptune CF
Market segment
Desktop
Laptop
Release date
March 2014
May 2012
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
-
Boost clock speed
933 MHz
900 MHz
Core clock speed
-
850 MHz
Floating-point performance
3,344 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
-
Pipelines / CUDA cores
1792
2560
Power consumption (TDP)
200 Watt
200 Watt
Texture fill rate
104.5
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
-
Memory bus width
384 Bit
2x 256 Bit
Memory clock speed
1250 MHz
4800 MHz
Memory bandwidth
240 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
-
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
11.1
Mantle
-
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-