Radeon HD 4580 and GeForce 720A - video card comparison
Radeon HD 4580
GeForce 720A
Architecture
TeraScale (2005−2013)
Fermi 2.0 (2010−2014)
GPU code name
RV635
GF117
Market segment
Desktop
Desktop
Release date
November 2011
July 2014
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
-
938 MHz
Core clock speed
796 MHz
775 MHz
Floating-point performance
191.04 gflops
360.2 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
378 million
585 million
Pipelines / CUDA cores
120
96
Power consumption (TDP)
65 Watt
33 Watt
Texture fill rate
6.368
15.01
Memory type
GDDR3
DDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1386 MHz
2000 MHz
Memory bandwidth
22.18 GB/s
16 GB/s
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
2.1
OpenCL
N/A
1.1
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A