Radeon RX 560 and GeForce GTX 660 Rev. 2 - video card comparison
Radeon RX 560
GeForce GTX 660 Rev. 2
Architecture
GCN 4.0 (2016−2020)
Kepler (2012−2018)
GPU code name
Polaris 21
GK104
Market segment
Desktop
Desktop
Release date
April 2017
September 2014
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
1275 MHz
1032 MHz
Core clock speed
1175 MHz
980 MHz
Floating-point performance
2,611 gflops
1,981 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
3,540 million
Pipelines / CUDA cores
1024
960
Power consumption (TDP)
75 Watt
140 Watt
Texture fill rate
81.60
82.56
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
7000 MHz
6008 MHz
Memory bandwidth
112.0 GB/s
144.2 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x 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
1.2.131
1.1.126