Radeon HD 6770 and GeForce GTX 1660 Mobile - video card comparison
Radeon HD 6770
GeForce GTX 1660 Mobile
Architecture
TeraScale 2 (2009−2015)
Turing (2018−2021)
GPU code name
Juniper
TU116B
Market segment
Desktop
Laptop
Release date
January 2011
May 2019
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
900 MHz
1590 MHz
Core clock speed
-
1455 MHz
Floating-point performance
1,360.0 gflops
-
Manufacturing process technology
40 nm
12 nm
Number of transistors
1,040 million
6,600 million
Pipelines / CUDA cores
800
1280
Power consumption (TDP)
108 Watt
-
Texture fill rate
34.00
127.2
Memory type
GDDR5
GDDR6
Maximum RAM amount
1 GB
6 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
1050 MHz
16000 MHz
Memory bandwidth
76.8 GB/s
384.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 3x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 (12_1)
CUDA
-
7.5
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
6.5
Vulkan
-
1.2.140
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-