Radeon HD 7990 and Radeon RX 550 - video card comparison
Passmark - benchmark score Radeon HD 7990 vs Radeon RX 550
Radeon HD 7990
5732
Radeon RX 550
2809
Radeon HD 7990
Radeon RX 550
Architecture
GCN 1.0 (2012−2020)
GCN 4.0 (2016−2020)
GPU code name
Malta
Lexa
Market segment
Desktop
Desktop
Release date
April 2013
April 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 8-pin
None
Boost clock speed
1000 MHz
1183 MHz
Core clock speed
950 MHz
1100 MHz
Floating-point performance
2x 4,096 gflops
1,211 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
4,313 million
2,200 million
Pipelines / CUDA cores
2048
512
Power consumption (TDP)
375 Watt
50 Watt
Texture fill rate
128.0
37.86
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
6000 MHz
7000 MHz
Memory bandwidth
288.0 GB/s
112.0 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
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