Radeon R9 M390X and GeForce MX450 - video card comparison
Passmark - benchmark score Radeon R9 M390X vs GeForce MX450
Radeon R9 M390X
3705
GeForce MX450
3845
Radeon R9 M390X
GeForce MX450
Architecture
GCN 3 (2014−2016)
Turing (2018−2021)
GPU code name
Amethyst (XT) / Tonga
N17S-G5 / GP107-670-A1
Market segment
Laptop
Laptop
Release date
June 2015
August 2020
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
-
1575 MHz
Core clock speed
723 MHz
1395 MHz
Floating-point performance
2,961 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
5,000 million
4,700 million
Pipelines / CUDA cores
2048
896
Power consumption (TDP)
100 Watt
25 Watt (12 - 29 Watt TGP)
Texture fill rate
92.54
100.8
Memory type
GDDR5
GDDR5, GDDR6
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
-
10000 MHz
Memory bandwidth
160.0 GB/s
64.03 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 12
12 (12_1)
CUDA
-
7.5
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.6
Shader Model
6.3
6.5
Vulkan
+
1.2
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
Optimus
-
+
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-