Radeon RX 580 and Radeon R7 340 OEM - video card comparison
Radeon RX 580
Radeon R7 340 OEM
Architecture
Polaris (2016−2019)
GCN 1.0 (2012−2020)
GPU code name
Polaris 20
Oland
Market segment
Desktop
Desktop
Release date
April 2017
May 2015
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1340 MHz
780 MHz
Core clock speed
1257 MHz
730 MHz
Floating-point performance
6,175 gflops
599.0 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
950 million
Pipelines / CUDA cores
2304
384
Power consumption (TDP)
185 Watt
50 Watt
Texture fill rate
193.0
18.72
Memory type
GDDR5
DDR3
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
8000 MHz
1800 MHz
Memory bandwidth
256.0 GB/s
28.8 GB/s
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.2.131