Radeon HD 7970 GHz Edition and NV43 A4 - video card comparison
Radeon HD 7970 GHz Edition
NV43 A4
Architecture
GCN 1.0 (2012−2020)
Curie (2003−2013)
GPU code name
Tahiti
NV43 A4
Market segment
Desktop
Desktop
Release date
June 2012
-
Bus support
PCIe 2.1 x16
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
1050 MHz
-
Floating-point performance
4,301 gflops
-
Manufacturing process technology
28 nm
110 nm
Number of transistors
4,313 million
146 million
Pipelines / CUDA cores
2048
-
Power consumption (TDP)
250 Watt
-
Texture fill rate
134.4
-
Memory type
GDDR5
-
Maximum RAM amount
3 GB
-
Memory bus width
384 Bit
-
Memory clock speed
1500 MHz
-
Memory bandwidth
288 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
-
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
9.0c (9_3)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
3.0
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
PureVideo HD
-
VP1
TrueAudio
-
-
ZeroCore
-
-