GeForce GTX 980M SLI and Radeon RX 6600 XT - video card comparison
GeForce GTX 980M SLI
Radeon RX 6600 XT
Architecture
Maxwell (2014−2018)
Navi / RDNA2 (2020−2022)
GPU code name
-
Navi 23
Market segment
Laptop
Desktop
Release date
October 2014
July 2021
Interface
-
PCIe 4.0 x8
Supplementary power connectors
-
1x 8-pin
SLI options
+
-
Boost clock speed
1127 MHz
2589 MHz
Core clock speed
1038 MHz
1968 MHz
Manufacturing process technology
28 nm
7 nm
Number of transistors
2x 5200 Million
11,060 million
Pipelines / CUDA cores
3072
2048
Power consumption (TDP)
200 Watt
160 (TGP) Watt
Texture fill rate
-
331.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
2x 8 GB
8 GB
Memory bus width
2x 256 Bit
128 Bit
Memory clock speed
5000 MHz
16000 MHz
Memory bandwidth
-
256.0 GB/s
Shared memory
-
-
Display Connectors
-
1x HDMI, 2x DisplayPort
HDMI
-
+
DirectX
12_1
12.0 Ultimate (12_2)
CUDA
+
-
OpenCL
-
2.1
OpenGL
-
4.6
Shader Model
-
6.5
Vulkan
+
1.2
Optimus
+
-