Radeon RX 570 and GeForce GTX 660 Rev. 2 - video card comparison
Radeon RX 570
GeForce GTX 660 Rev. 2
Architecture
Polaris (2016−2019)
Kepler (2012−2018)
GPU code name
Polaris 20 Ellesmere
GK104
Market segment
Desktop
Desktop
Release date
April 2017
September 2014
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Boost clock speed
1244 MHz
1032 MHz
Core clock speed
1168 MHz
980 MHz
Floating-point performance
5,095 gflops
1,981 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
3,540 million
Pipelines / CUDA cores
2048
960
Power consumption (TDP)
120 Watt
140 Watt
Texture fill rate
159.2
82.56
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
192 Bit
Memory clock speed
7000 MHz
6008 MHz
Memory bandwidth
224.0 GB/s
144.2 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12 (11_0)
CUDA
-
3.0
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
+
1.1.126
FreeSync
+
-