Radeon RX 570 and GeForce GTX 645 OEM - video card comparison
Radeon RX 570
GeForce GTX 645 OEM
Architecture
Polaris (2016−2019)
Kepler (2012−2018)
GPU code name
Polaris 20 Ellesmere
GK106
Market segment
Desktop
Desktop
Release date
April 2017
April 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
1244 MHz
-
Core clock speed
1168 MHz
824 MHz
Floating-point performance
5,095 gflops
949.2 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
2,540 million
Pipelines / CUDA cores
2048
576
Power consumption (TDP)
120 Watt
65 Watt
Texture fill rate
159.2
39.55
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
7000 MHz
4000 MHz
Memory bandwidth
224.0 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 3x DisplayPort
1x 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
+
-