Radeon HD 6990 and Radeon RX 580 2048SP - video card comparison
Passmark - benchmark score Radeon HD 6990 vs Radeon RX 580 2048SP
Radeon HD 6990
3103
Radeon RX 580 2048SP
7930
Radeon HD 6990
Radeon RX 580 2048SP
Architecture
TeraScale 3 (2010−2013)
GCN 4.0 (2016−2020)
GPU code name
Antilles
Polaris 20
Market segment
Desktop
Desktop
Release date
March 2011
October 2018
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
1x 8-pin
Boost clock speed
-
1284 MHz
Core clock speed
830 MHz
1168 MHz
Floating-point performance
2x 2,549.8 gflops
-
Manufacturing process technology
40 nm
14 nm
Number of transistors
2,640 million
5,700 million
Pipelines / CUDA cores
1536
2048
Power consumption (TDP)
375 Watt
150 Watt
Texture fill rate
79.68
164.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5000 MHz
7000 MHz
Memory bandwidth
160.0 GB/s
224.0 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
1x DVI, 1x HDMI, 3x DisplayPort
HDMI
-
+
DirectX
11.2 (11_0)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.4
Vulkan
N/A
1.2.131