Radeon HD 7870 and GeForce GT 530 OEM - video card comparison
Radeon HD 7870
GeForce GT 530 OEM
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Pitcairn XT
GF108
Market segment
Desktop
Desktop
Release date
March 2012
May 2011
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
Core clock speed
1000 MHz
700 MHz
Floating-point performance
-
268.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2800 Million
585 million
Pipelines / CUDA cores
1280
96
Power consumption (TDP)
175 Watt
50 Watt
Texture fill rate
80.00
11.20
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
1800 MHz
Memory bandwidth
153.6 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
+
-
HDMI
+
+
DirectX
12 (11_1)
12 (11_0)
CUDA
-
2.1
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
N/A