Radeon R9 270 1024SP and Radeon E8870 PCIe - video card comparison
Radeon R9 270 1024SP
Radeon E8870 PCIe
Architecture
GCN 1.0 (2012−2020)
GCN 2.0 (2013−2017)
GPU code name
Pitcairn
Saturn
Market segment
Desktop
Desktop
Release date
March 2015
September 2015
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
925 MHz
-
Core clock speed
900 MHz
1000 MHz
Floating-point performance
1,894 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
2,080 million
Pipelines / CUDA cores
1024
768
Power consumption (TDP)
150 Watt
75 Watt
Texture fill rate
59.20
48.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
6 GB/s
Memory bandwidth
153.6 GB/s
96 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
4x DisplayPort 1.2
HDMI
+
-
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.5 (6.0)
Vulkan
1.2.131
1.2.170