GeForce GTX 1660 and Radeon RX 6600 XT - video card comparison
Passmark - benchmark score GeForce GTX 1660 vs Radeon RX 6600 XT
GeForce GTX 1660
12040
Radeon RX 6600 XT
16985
GeForce GTX 1660
Radeon RX 6600 XT
Architecture
Turing (2018−2021)
Navi / RDNA2 (2020−2022)
GPU code name
Turing TU116
Navi 23
Market segment
Desktop
Desktop
Release date
March 2019
July 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
1x 8-pin
1x 8-pin
Boost clock speed
1785 MHz
2589 MHz
Core clock speed
1530 MHz
1968 MHz
Manufacturing process technology
12 nm
7 nm
Number of transistors
6,600 million
11,060 million
Pipelines / CUDA cores
1408
2048
Power consumption (TDP)
120 Watt
160 (TGP) Watt
Texture fill rate
157.1
331.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
6 GB
8 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
8000 MHz
16000 MHz
Memory bandwidth
192.1 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x 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
1.2.131
1.2