Radeon HD 7770M and GeForce GTX 1660 - video card comparison
Radeon HD 7770M
GeForce GTX 1660
Architecture
GCN (2011−2017)
Turing (2018−2021)
GPU code name
Chelsea XT
Turing TU116
Market segment
Laptop
Desktop
Release date
April 2012
March 2019
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
-
1x 8-pin
Boost clock speed
-
1785 MHz
Core clock speed
675 MHz
1530 MHz
Floating-point performance
691.2 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
1,500 million
6,600 million
Pipelines / CUDA cores
512
1408
Power consumption (TDP)
32 Watt
120 Watt
Texture fill rate
21.60
157.1
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
6 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
4000 MHz
8000 MHz
Memory bandwidth
64 GB/s
192.1 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (11_1)
12 (12_1)
CUDA
-
7.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.2.131
1.2.131