Radeon HD 7870 and GeForce GT 630 OEM - video card comparison
Radeon HD 7870
GeForce GT 630 OEM
Architecture
GCN (2011−2017)
Kepler (2012−2018)
GPU code name
Pitcairn XT
GK107
Market segment
Desktop
Desktop
Release date
March 2012
April 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
None
Core clock speed
1000 MHz
875 MHz
Floating-point performance
-
336.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
1,270 million
Pipelines / CUDA cores
1280
192
Power consumption (TDP)
175 Watt
50 Watt
Texture fill rate
80.00
14.00
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
1782 MHz
Memory bandwidth
153.6 GB/s
28.51 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
-
3.0
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
1.1.126