Radeon RX 550 and Radeon HD 8990 OEM - video card comparison
Radeon RX 550
Radeon HD 8990 OEM
Architecture
GCN 4.0 (2016−2020)
GCN 1.0 (2012−2020)
GPU code name
Lexa
Malta
Market segment
Desktop
Desktop
Release date
April 2017
April 2013
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
1183 MHz
1000 MHz
Core clock speed
1100 MHz
950 MHz
Floating-point performance
1,211 gflops
2x 4,096 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
2,200 million
4,313 million
Pipelines / CUDA cores
512
2048
Power consumption (TDP)
50 Watt
375 Watt
Texture fill rate
37.86
128.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
3 GB
Memory bus width
128 Bit
384 Bit
Memory clock speed
7000 MHz
6000 MHz
Memory bandwidth
112.0 GB/s
288.0 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 4x mini-DisplayPort
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