GeForce GTX 980 SLI Mobile and Radeon 660M - video card comparison
GeForce GTX 980 SLI Mobile
Radeon 660M
Architecture
Maxwell (2014−2018)
RDNA 2 (2020−2022)
GPU code name
N16E-GXX SLI
RDNA 2 Rembrandt
Market segment
Laptop
Laptop
Release date
September 2015
January 2022
Interface
-
PCIe 4.0 x8
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
1228 MHz
1900 MHz
Core clock speed
1126 MHz
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
10400 Million
13,100 million
Pipelines / CUDA cores
4096
384
Power consumption (TDP)
330 Watt
45 Watt
Texture fill rate
-
45.60
Memory type
GDDR5
System Shared
Maximum RAM amount
2x 8 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
3500 MHz
System Shared
Shared memory
-
-
Display Connectors
-
No outputs
G-SYNC support
+
-
DirectX
12_1
12 (12_1)
CUDA
+
-
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.5
Vulkan
-
1.2