Radeon RX 550 and Radeon HD 3870 - video card comparison
Passmark - benchmark score Radeon RX 550 vs Radeon HD 3870
Radeon RX 550
2809
Radeon HD 3870
572
Radeon RX 550
Radeon HD 3870
Architecture
GCN 4.0 (2016−2020)
TeraScale (2005−2013)
GPU code name
Lexa
RV670
Market segment
Desktop
Desktop
Release date
April 2017
November 2007
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
1183 MHz
-
Core clock speed
1100 MHz
777 MHz
Floating-point performance
1,211 gflops
497.3 gflops
Manufacturing process technology
14 nm
55 nm
Number of transistors
2,200 million
666 million
Pipelines / CUDA cores
512
320
Power consumption (TDP)
50 Watt
106 Watt
Texture fill rate
37.86
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
4 GB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
7000 MHz
2252 MHz
Memory bandwidth
112.0 GB/s
72.06 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (12_0)
10.1 (10_1)
OpenCL
2.0
N/A
OpenGL
4.6
3.3
Shader Model
6.4
4.1
Vulkan
1.2.131
N/A