Radeon HD 7870 XT and Radeon R9 380 OEM - video card comparison
Radeon HD 7870 XT
Radeon R9 380 OEM
Architecture
GCN 1.0 (2012−2020)
GCN 3.0 (2014−2017)
GPU code name
Tahiti
Antigua
Market segment
Desktop
Desktop
Release date
November 2012
May 2015
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
2x 6-pin
Boost clock speed
975 MHz
-
Core clock speed
925 MHz
918 MHz
Floating-point performance
2,995 gflops
3,290 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
5,000 million
Pipelines / CUDA cores
1536
1792
Power consumption (TDP)
185 Watt
190 Watt
Texture fill rate
93.60
102.8
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
6000 MHz
5500 MHz
Memory bandwidth
192.0 GB/s
176.0 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x 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
6.3
Vulkan
1.2.131
1.2.131