GeForce GTX 980MX and Radeon RX 6400 - video card comparison
GeForce GTX 980MX
Radeon RX 6400
Architecture
Maxwell 2.0 (2015−2019)
RDNA 2.0 (2020−2022)
GPU code name
GM204
Navi 24
Market segment
Desktop
Desktop
Release date
June 2016
January 2022
Interface
PCIe 3.0 x16
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
1178 MHz
2321 MHz
Core clock speed
1050 MHz
-
Floating-point performance
3,920 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
5,200 million
5,400 million
Pipelines / CUDA cores
1664
768
Power consumption (TDP)
148 Watt
53 Watt
Texture fill rate
122.5
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
8 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
6000 MHz
16 GB/s
Memory bandwidth
192.0 GB/s
128.0 GB/s
Display Connectors
No outputs
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (12_1)
12 Ultimate (12_2)
CUDA
5.2
-
OpenCL
1.2
2.2
OpenGL
4.6
4.6
Shader Model
6.4
6.6
Vulkan
1.1.126
1.3