GeForce GTX 980MX and Radeon RX 6600 - video card comparison
GeForce GTX 980MX
Radeon RX 6600
Architecture
Maxwell 2.0 (2015−2019)
Navi / RDNA2 (2020−2022)
GPU code name
GM204
Navi 23
Market segment
Desktop
Desktop
Release date
June 2016
October 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
None
1x 8-pin
Boost clock speed
1178 MHz
2491 MHz
Core clock speed
1050 MHz
2044 MHz
Floating-point performance
3,920 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
5,200 million
11,060 million
Pipelines / CUDA cores
1664
1792
Power consumption (TDP)
148 Watt
132 Watt
Texture fill rate
122.5
279.0
Memory type
GDDR5
GDDR6
Maximum RAM amount
8 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
6000 MHz
14500 MHz
Memory bandwidth
192.0 GB/s
224.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI, 3x DisplayPort
HDMI
-
+
DirectX
12 (12_1)
12.0 Ultimate (12_2)
CUDA
5.2
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.5
Vulkan
1.1.126
1.2