GeForce GTX 1660 Super and Radeon HD 6990M Crossfire - video card comparison
GeForce GTX 1660 Super
Radeon HD 6990M Crossfire
Architecture
Turing (2018−2021)
Terascale 2 (2009−2015)
GPU code name
Turing TU116
Blackcomb XTX
Market segment
Desktop
Laptop
Release date
October 2019
July 2011
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 8-pin
-
Boost clock speed
1785 MHz
-
Core clock speed
1530 MHz
715 MHz
Manufacturing process technology
12 nm
40 nm
Number of transistors
6,600 million
2x1700 Million
Pipelines / CUDA cores
1408
2240
Power consumption (TDP)
125 Watt
-
Texture fill rate
157.1
-
Memory type
GDDR6
GDDR5
Maximum RAM amount
6 GB
2x2 GB
Memory bus width
192 Bit
256 Bit
Memory clock speed
14000 MHz
900 MHz
Memory bandwidth
336.0 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
HDCP
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
11
CUDA
7.5
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
6.5
-
Vulkan
1.2.131
-
Ansel
+
-
NVENC
+
-