Radeon HD 6790 and Radeon RX 580 XTR - video card comparison
Radeon HD 6790
Radeon RX 580 XTR
Architecture
Terascale 2 (2009−2015)
GCN 4.0 (2016−2020)
GPU code name
Barts
Polaris 20
Market segment
Desktop
Desktop
Release date
April 2011
April 2017
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
1x 8-pin
Boost clock speed
-
1340 MHz
Core clock speed
840 MHz
1257 MHz
Floating-point performance
1,344.0 gflops
6,175 gflops
Manufacturing process technology
40 nm
14 nm
Number of transistors
1,700 million
5,700 million
Pipelines / CUDA cores
800
2304
Power consumption (TDP)
150 Watt
185 Watt
Texture fill rate
33.60
193.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1050 MHz
8000 MHz
Memory bandwidth
134.4 GB/s
256.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
11.2 (11_0)
12.0 (12_0)
OpenCL
1.2
-
OpenGL
4.4
4.5
Shader Model
5.0
-
Vulkan
N/A
-