Radeon HD 7870 XT and Radeon R7 450 OEM - video card comparison
Radeon HD 7870 XT
Radeon R7 450 OEM
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Tahiti
Cape Verde
Market segment
Desktop
Desktop
Release date
November 2012
June 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
975 MHz
-
Core clock speed
925 MHz
925 MHz
Floating-point performance
2,995 gflops
947.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
1,500 million
Pipelines / CUDA cores
1536
512
Power consumption (TDP)
185 Watt
65 Watt
Texture fill rate
93.60
29.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
6000 MHz
4.5 GB/s
Memory bandwidth
192.0 GB/s
72 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
HDMI
+
+
DirectX
12 (11_1)
12 (11_1)
OpenCL
1.2
2.1 (1.2)
OpenGL
4.6
4.6
Shader Model
5.1
6.5 (5.1)
Vulkan
1.2.131
1.2.170