Radeon HD 7970 GHz Edition and GeForce4 MX 420 - video card comparison
Radeon HD 7970 GHz Edition
GeForce4 MX 420
Architecture
GCN 1.0 (2012−2020)
Celsius (1999−2005)
GPU code name
Tahiti
NV17 A3
Market segment
Desktop
Desktop
Release date
June 2012
February 2002
Bus support
PCIe 2.1 x16
-
Interface
PCIe 3.0 x16
AGP 4x
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
1050 MHz
-
Core clock speed
-
250 MHz
Floating-point performance
4,301 gflops
-
Manufacturing process technology
28 nm
150 nm
Number of transistors
4,313 million
29 million
Pipelines / CUDA cores
2048
-
Power consumption (TDP)
250 Watt
-
Texture fill rate
134.4
1.000
Memory type
GDDR5
SDR
Maximum RAM amount
3 GB
64 MB
Memory bus width
384 Bit
64 Bit
Memory clock speed
1500 MHz
166 MHz
Memory bandwidth
288 GB/s
1.328 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x VGA, 1x S-Video
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
8.0
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.6
1.3
Shader Model
5.1
-
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-