Radeon HD 7770 and GeForce4 420 Go - video card comparison
Passmark - benchmark score Radeon HD 7770 vs GeForce4 420 Go
Radeon HD 7770
2235
GeForce4 420 Go
3
Radeon HD 7770
GeForce4 420 Go
Architecture
GCN (2011−2017)
Celsius (1999−2005)
GPU code name
Cape Verde
NV17M
Market segment
Desktop
Laptop
Release date
February 2012
March 2002
Interface
PCIe 3.0 x16
AGP 4x
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
190 MHz
Core clock speed
1000 MHz
200 MHz
Manufacturing process technology
28 nm
150 nm
Number of transistors
1,500 million
29 million
Pipelines / CUDA cores
640
2
Power consumption (TDP)
80 Watt
-
Texture fill rate
40.00
0.8
Memory type
GDDR5
DDR
Maximum RAM amount
2 GB
64 MB
Memory bus width
128 Bit
32 Bit
Memory clock speed
4500 MHz
400 MHz
Memory bandwidth
72 GB/s
3.2 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
8.0
OpenCL
1.2
N/A
OpenGL
4.6
1.3
Shader Model
5.1
-
Vulkan
1.2.131
N/A