Radeon HD 7770 and Radeon RX 550X - video card comparison
Passmark - benchmark score Radeon HD 7770 vs Radeon RX 550X
Radeon HD 7770
2235
Radeon RX 550X
2322
Radeon HD 7770
Radeon RX 550X
Architecture
GCN (2011−2017)
GCN 4.0 (2016−2020)
GPU code name
Cape Verde
Lexa
Market segment
Desktop
Desktop
Release date
February 2012
December 2018
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
1183 MHz
Core clock speed
1000 MHz
1100 MHz
Floating-point performance
-
1,211 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,500 million
2,200 million
Pipelines / CUDA cores
640
512
Power consumption (TDP)
80 Watt
50 Watt
Texture fill rate
40.00
37.86
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
6000 MHz
Memory bandwidth
72 GB/s
96 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x 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