Radeon HD 7950 and Radeon HD 7970M Crossfire - video card comparison
Radeon HD 7950
Radeon HD 7970M Crossfire
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Tahiti
Wimbledon XT
Market segment
Desktop
Laptop
Release date
January 2012
May 2012
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
2x 6-pin
-
Boost clock speed
1250 MHz
-
Compute units
28
-
Core clock speed
-
850 MHz
Floating-point performance
2,867 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
89.60
-
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
1x DVI, 1x HDMI, 2x mini-DisplayPort
-
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
11.1
Mantle
-
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
AppAcceleration
+
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
-
-
ZeroCore
+
-