GeForce GTX 1660 Mobile and Radeon RX 6600 XT - video card comparison
GeForce GTX 1660 Mobile
Radeon RX 6600 XT
Architecture
Turing (2018−2021)
Navi / RDNA2 (2020−2022)
GPU code name
TU116B
Navi 23
Market segment
Laptop
Desktop
Release date
May 2019
July 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
-
1x 8-pin
Boost clock speed
1590 MHz
2589 MHz
Core clock speed
1455 MHz
1968 MHz
Manufacturing process technology
12 nm
7 nm
Number of transistors
6,600 million
11,060 million
Pipelines / CUDA cores
1280
2048
Power consumption (TDP)
-
160 (TGP) Watt
Texture fill rate
127.2
331.4
Memory type
GDDR6
GDDR6
Maximum RAM amount
6 GB
8 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
16000 MHz
16000 MHz
Memory bandwidth
384.0 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
1x HDMI, 2x DisplayPort
HDMI
+
+
DirectX
12 (12_1)
12.0 Ultimate (12_2)
CUDA
7.5
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2.140
1.2