Radeon HD 7870 and Radeon RX 580 OEM - video card comparison
Radeon HD 7870
Radeon RX 580 OEM
Architecture
GCN (2011−2017)
GCN 4.0 (2016−2020)
GPU code name
Pitcairn XT
Ellesmere
Market segment
Desktop
Desktop
Release date
March 2012
June 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Boost clock speed
-
1266 MHz
Core clock speed
1000 MHz
1120 MHz
Floating-point performance
-
5,834 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
2800 Million
5,700 million
Pipelines / CUDA cores
1280
2304
Power consumption (TDP)
175 Watt
150 Watt
Texture fill rate
80.00
182.3
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
4800 MHz
8000 MHz
Memory bandwidth
153.6 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x HDMI, 3x DisplayPort
Eyefinity
+
-
HDMI
+
+
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.2.131