Radeon HD 7870 and GeForce GT 320 OEM - video card comparison
Radeon HD 7870
GeForce GT 320 OEM
Architecture
GCN (2011−2017)
Tesla 2.0 (2007−2013)
GPU code name
Pitcairn XT
GT215
Market segment
Desktop
Desktop
Release date
March 2012
February 2010
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
Core clock speed
1000 MHz
540 MHz
Floating-point performance
-
187.49 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2800 Million
727 million
Pipelines / CUDA cores
1280
72
Power consumption (TDP)
175 Watt
43 Watt
Texture fill rate
80.00
12.96
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
1580 MHz
Memory bandwidth
153.6 GB/s
25.28 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)
11.1 (10_1)
CUDA
-
1.2
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
1.2.131
N/A