GeForce GTX 1660 Super and Radeon HD 8990 OEM - video card comparison
GeForce GTX 1660 Super
Radeon HD 8990 OEM
Architecture
Turing (2018−2021)
GCN 1.0 (2012−2020)
GPU code name
Turing TU116
Malta
Market segment
Desktop
Desktop
Release date
October 2019
April 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
2x 8-pin
Boost clock speed
1785 MHz
1000 MHz
Core clock speed
1530 MHz
950 MHz
Floating-point performance
-
2x 4,096 gflops
Manufacturing process technology
12 nm
28 nm
Number of transistors
6,600 million
4,313 million
Pipelines / CUDA cores
1408
2048
Power consumption (TDP)
125 Watt
375 Watt
Texture fill rate
157.1
128.0
Memory type
GDDR6
GDDR5
Maximum RAM amount
6 GB
3 GB
Memory bus width
192 Bit
384 Bit
Memory clock speed
14000 MHz
6000 MHz
Memory bandwidth
336.0 GB/s
288.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 4x mini-DisplayPort
HDMI
+
-
HDCP
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
12 (11_1)
CUDA
7.5
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2.131
1.2.131
Ansel
+
-
NVENC
+
-