Radeon HD 7770 and Radeon R5 M420 - video card comparison
Passmark - benchmark score Radeon HD 7770 vs Radeon R5 M420
Radeon HD 7770
2235
Radeon R5 M420
501
Radeon HD 7770
Radeon R5 M420
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Cape Verde
Jet
Market segment
Desktop
Laptop
Release date
February 2012
June 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
850 MHz
Core clock speed
1000 MHz
780 MHz
Floating-point performance
-
547.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
690 million
Pipelines / CUDA cores
640
320
Power consumption (TDP)
80 Watt
-
Texture fill rate
40.00
17.00
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
4500 MHz
2000 MHz
Memory bandwidth
72 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (11_1)
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
1.2.131