Radeon HD 7950 and GeForce4 MX 420 - video card comparison
Passmark - benchmark score Radeon HD 7950 vs GeForce4 MX 420
Radeon HD 7950
4907
GeForce4 MX 420
4
Radeon HD 7950
GeForce4 MX 420
Architecture
GCN 1.0 (2012−2020)
Celsius (1999−2005)
GPU code name
Tahiti
NV17 A3
Market segment
Desktop
Desktop
Release date
January 2012
February 2002
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
AGP 4x
Supplementary power connectors
2x 6-pin
None
Boost clock speed
1250 MHz
-
Compute units
28
-
Core clock speed
-
250 MHz
Floating-point performance
2,867 gflops
-
Manufacturing process technology
28 nm
150 nm
Number of transistors
4,313 million
29 million
Pipelines / CUDA cores
1792
-
Power consumption (TDP)
200 Watt
-
Texture fill rate
89.60
1.000
Memory type
GDDR5
SDR
Maximum RAM amount
3 GB
64 MB
Memory bus width
384 Bit
64 Bit
Memory clock speed
1250 MHz
166 MHz
Memory bandwidth
240 GB/s
1.328 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x VGA, 1x S-Video
Eyefinity
1
-
Number of Eyefinity displays
6
-
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
+
-