Radeon HD 7950 and Radeon R5 M420 - video card comparison
Passmark - benchmark score Radeon HD 7950 vs Radeon R5 M420
Radeon HD 7950
4907
Radeon R5 M420
501
Radeon HD 7950
Radeon R5 M420
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Tahiti
Jet
Market segment
Desktop
Laptop
Release date
January 2012
June 2016
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
-
Boost clock speed
1250 MHz
850 MHz
Compute units
28
-
Core clock speed
-
780 MHz
Floating-point performance
2,867 gflops
547.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
690 million
Pipelines / CUDA cores
1792
320
Power consumption (TDP)
200 Watt
-
Texture fill rate
89.60
17.00
Memory type
GDDR5
DDR3
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
1250 MHz
2000 MHz
Memory bandwidth
240 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12 (11_1)
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
-
1.2.131
AppAcceleration
+
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
-
-
ZeroCore
+
-