Radeon HD 8870 OEM and Onega - video card comparison
Radeon HD 8870 OEM
Onega
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Pitcairn
Onega
Market segment
Desktop
Desktop
Release date
January 2013
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
2x 6-pin
-
Core clock speed
1000 MHz
-
Floating-point performance
2,560 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
716 million
Pipelines / CUDA cores
1280
480
Power consumption (TDP)
175 Watt
-
Texture fill rate
80.00
-
Memory type
GDDR5
-
Maximum RAM amount
2 GB
-
Memory bus width
256 Bit
-
Memory clock speed
4800 MHz
-
Memory bandwidth
153.6 GB/s
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
-
HDMI
+
-
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A